动态生成RDLC报表
前段时间,做了RDLC报表,主要是三块功能:
1、从DataGrid提取(包括最新的增删改)数据,自动生成对应的RDLC报表文件(以流的形式驻存在内存中),用ReportViewer类来展示、打印、排版、预览、分页
提供一个提取任意控件数据的通用接口,然后拼接成DataTable这种网状的格子。DataGrid里修改、增加、删除等数据变动,立即同步更新到报表
2、给一个简单的RDLC模板,提供表头的字体格式和表内部数据等样式相关的信息,然后再用DataGrid里提取的数据,生成DataTable和其它必需信息,填充到报表里,
自动调整报表格式
3、做了一个TreeView,很简单;根据报表文件名称,切换左侧TreeView的Item,就加载不同的报表,显示数据。用了一点反射的知识
转载请注明出处: https://www.cnblogs.com/NaughtyCat/p/auto-generate-report.html
第一步:根据 Report Definition Language (RDL) 生成对应的类和命名空间。
1、去 http://schemas.microsoft.com/sqlserver/reporting/2010/01/reportdefinition/ 下载ReportDefinition2010.xsd。
注意:ReportDefinition和Visual Studio发布的有个时间差,官网上有ReportDefinition2005版和ReportDefinition2008版。ReportDefinition2005版,VS2008及以后才支持;
ReportDefinition2008版,VS2010及以后支持。2010版,要VS2012以后才支持。我的是VS2010,用ReportDefinition2008版就好。
2、找XML Schema Definition Tool (Xsd.exe),Windows操作系统会自带(微软会自带很多功能强大的exe,要是开源就好了)。For more detail,please refer to:
官网有详细的命令使用说明 https://msdn.microsoft.com/en-us/library/x6c1kb0s(v=vs.110).aspx
Below is my CMD in administator mode:
C:\Program Files (x86)\Microsoft SDKs\Windows\v7.0A\Bin\x64>xsd
/c /n:RDLC
/out:C:\Users\admin\Desktop\RDLCReportResearch
C:\Users\admin\Desktop\RDLCReportResearch\ReportDefinition.xsd
完了,生成的是这么个样子(ReportDefinition2005的生成出来有8000行左右,ReportDefinition2008的及以后有10000多行,贴一部分,样子参照下面代码)
using System.Xml.Serialization; /// <remarks/> [System.CodeDom.Compiler.GeneratedCodeAttribute("xsd", "2.0.50727.3038")] [System.SerializableAttribute()] [System.Diagnostics.DebuggerStepThroughAttribute()] [System.ComponentModel.DesignerCategoryAttribute("code")] [System.Xml.Serialization.XmlTypeAttribute(AnonymousType=true, Namespace="http://schemas.microsoft.com/sqlserver/reporting/2008/01/reportdefinition")] [System.Xml.Serialization.XmlRootAttribute(Namespace="http://schemas.microsoft.com/sqlserver/reporting/2008/01/reportdefinition", IsNullable=false)] public partial class Report { private object[] itemsField; private ItemsChoiceType80[] itemsElementNameField; private System.Xml.XmlAttribute[] anyAttrField; /// <remarks/> [System.Xml.Serialization.XmlAnyElementAttribute()] [System.Xml.Serialization.XmlElementAttribute("Author", typeof(string))] [System.Xml.Serialization.XmlElementAttribute("AutoRefresh", typeof(uint))] [System.Xml.Serialization.XmlElementAttribute("Body", typeof(BodyType))] [System.Xml.Serialization.XmlElementAttribute("Classes", typeof(ClassesType))] [System.Xml.Serialization.XmlElementAttribute("Code", typeof(string))] [System.Xml.Serialization.XmlElementAttribute("CodeModules", typeof(CodeModulesType))] [System.Xml.Serialization.XmlElementAttribute("ConsumeContainerWhitespace", typeof(bool))]
第二步:创建RDLCGenerator类和TablixRDLCGenerator类
1、根据下载的Report Definition Language(RDL)和一个创建的简单的RDLC文件,知道RDLC文件基本要有哪几部分组成;然后层层嵌套创建就出来了,很简单。
2-1、Tablix是关键数据区,GotReportViewer上面的例子,DynamicMatrix和DynamicTable是根据RDL2005来做的,RDL2008以后,就是一个Tablix:
2-2、Tablix的主要数据区域: TablixHierarchyType CreateTablixColumnHierarchy()和TablixHierarchyType CreateTablixRowHierarchy()
2-3、对于HeaderRow和DataRow关键就在下面的不同。
1 private LocIDStringWithDataTypeAttribute CreateTablixTextRunValue(bool isHeaderCell, string name) 2 { 3 LocIDStringWithDataTypeAttribute v = new LocIDStringWithDataTypeAttribute(); 4 v.Value = isHeaderCell ? name : "=Fields!" + name + ".Value"; 5 v.DataType = StringWithDataTypeAttributeDataType.String; 6 return v; 7 }
2-4、DataSet的名字一定要和ReportDataSource里的名字完全匹配
RdlcGenerator的Read和Write方法比较重要。
/// table + matrix = tablix /// Microsoft 用一个tablix来支持Table(表), Matrix(矩阵) and List(列表)这三种报表项 /// 整合了table和matrix的功能
#region Properties // DataGrid 的DataGridColumn的Header private List<string> headerNames = new List<string>(); public List<string> HeaderNames { get { return headerNames; } } // 对应DataGrid Binding的Path private List<string> fieldNames = new List<string>(); public List<string> FieldNames { get { return fieldNames; } } // 对应DataGrid Column的ActualWdith(因为实际的窗口宽度会重新计算) private List<double> widths = new List<double>(); public List<double> Widths { get { return widths; } } // 如果没有更新过页面设置,用ReportViewer的默认页面设置;否则用最新的页面设置 public PageSettings PageSettings { get; set; } public string Headline { get; set; } public string DataSourceName { get; set; } public string DataSetName { get; set; } #endregion #region Methods // 一层套一层,把xml构造出来 private Report CreateReport() { Report report = new Report(); report.Items = new object[] { CreateDataSources(), CreateDataSets(), CreateBody(), CalcReportWidth(), CreatePage(), }; report.ItemsElementName = new ItemsChoiceType80[] { ItemsChoiceType80.DataSources, ItemsChoiceType80.DataSets, ItemsChoiceType80.Body, ItemsChoiceType80.Width, ItemsChoiceType80.Page, }; return report; } private DataSourcesType CreateDataSources() { DataSourcesType dataSources = new DataSourcesType(); dataSources.DataSource = new DataSourceType[] { CreateDataSource() }; return dataSources; } private DataSourceType CreateDataSource() { DataSourceType dataSource = new DataSourceType(); dataSource.Name = String.IsNullOrEmpty(DataSetName) ? "TBReport" : DataSetName; dataSource.Items = new object[] { CreateDataSourceConnectionProperties() }; return dataSource; } private ConnectionPropertiesType CreateDataSourceConnectionProperties() { ConnectionPropertiesType connectionProperties = new ConnectionPropertiesType(); connectionProperties.Items = new object[] { "System.Data.DataSet", "/* Local Connection */", }; connectionProperties.ItemsElementName = new ItemsChoiceType[] { ItemsChoiceType.DataProvider, ItemsChoiceType.ConnectString, }; return connectionProperties; } private DataSetsType CreateDataSets() { DataSetsType dataSets = new DataSetsType(); dataSets.DataSet = new DataSetType[] { CreateDataSet() }; return dataSets; } // Query暂时就不要了 private DataSetType CreateDataSet() { DataSetType dataSet = new DataSetType(); // DataSetName写死就好 dataSet.Name = "CustomerDataSet"; dataSet.Items = new object[] { CreateDataSetFields(), CreateDataSetQuery(), }; return dataSet; } private FieldsType CreateDataSetFields() { FieldsType fields = new FieldsType(); // DataSet的具体field由DataGrid的Bingding的Path值决定 if ((fieldNames != null) && (fieldNames.Count > 0)) { fields.Field = new FieldType[fieldNames.Count]; for (int index = 0; index < fieldNames.Count; index++) fields.Field[index] = CreateDataSetField(fieldNames[index]); } return fields; } private FieldType CreateDataSetField(string fieldName) { FieldType field = new FieldType(); field.Name = fieldName; field.Items = new object[] { fieldName, // CreateDataSetFieldValue(), }; return field; } // 暂时DataType全部用String private StringWithDataTypeAttribute CreateDataSetFieldValue() { StringWithDataTypeAttribute value = new StringWithDataTypeAttribute(); value.DataType = StringWithDataTypeAttributeDataType.String; return value; } private QueryType CreateDataSetQuery() { QueryType query = new QueryType(); query.Items = new object[] { "TBReport", "/* Local Query */", }; query.ItemsElementName = new ItemsChoiceType1[] { ItemsChoiceType1.DataSourceName, ItemsChoiceType1.CommandText, }; return query; } private BodyType CreateBody() { BodyType body = new BodyType(); body.Items = new object[] { "4.8in", // Height CreateReportItems(), // ReportItems CreateBodyStyle(), }; return body; } private ReportItemsType CreateReportItems() { ReportItemsType reportItems = new ReportItemsType(); // 这是关键数据区域 TablixRdlcGenerator tablixGen = new TablixRdlcGenerator(); tablixGen.ResetHeaderNames(HeaderNames); tablixGen.ResetFieldNames(FieldNames); List<string> tablixColumnWidths; DataGridHelper.CalcTablixColumnWidth(CalcReportWidth(), Widths, out tablixColumnWidths); tablixGen.ResetWidths(tablixColumnWidths); reportItems.Items = new object[] { CreateReportHeadlineTextbox(), tablixGen.CreateTablix() }; return reportItems; } // 创建标题 private TextboxType CreateReportHeadlineTextbox() { TextboxType headlineTextbox = new TextboxType(); headlineTextbox.Name = "headlineTextbox"; string left = (PageSettings == null) ? "2cm" : ((double)PageSettings.Margins.Left / 100.0).ToString() + "in"; string width = (PageSettings == null) ? "17cm" : ((double)(PageSettings.PaperSize.Width - PageSettings.Margins.Left - PageSettings.Margins.Right) / 100.0).ToString() + "in"; headlineTextbox.Items = new object[] { true, true, CreateHeadlineTextboxParagraphs(), left, "0.5cm", "1.0cm", width, CreateHeadlineTextboxStyle() }; headlineTextbox.ItemsElementName = new ItemsChoiceType14[] { ItemsChoiceType14.CanGrow, ItemsChoiceType14.KeepTogether, ItemsChoiceType14.Paragraphs, ItemsChoiceType14.Left, ItemsChoiceType14.Top, ItemsChoiceType14.Height, ItemsChoiceType14.Width, ItemsChoiceType14.Style }; return headlineTextbox; } private ParagraphsType CreateHeadlineTextboxParagraphs() { ParagraphsType headlineParagraphs = new ParagraphsType(); headlineParagraphs.Paragraph = new ParagraphType[] {CreateHeadlineTextboxParagraph()}; return headlineParagraphs; } private ParagraphType CreateHeadlineTextboxParagraph() { ParagraphType pt = new ParagraphType(); pt.Items = new object[] { CreateHeadlineTextRuns(), CreateHeadlineParagraphStyle() }; pt.ItemsElementName = new ItemsChoiceType12[] { ItemsChoiceType12.TextRuns, ItemsChoiceType12.Style, }; return pt; } private TextRunsType CreateHeadlineTextRuns() { TextRunsType trt = new TextRunsType(); trt.TextRun = new TextRunType[] { CreateHeadlineTextRun() }; return trt; } private TextRunType CreateHeadlineTextRun() { TextRunType trt = new TextRunType(); trt.Items = new object[] { CreateHeadLineTextRunValue(), CreateHeadlineTextRunStyle() }; trt.ItemsElementName = new ItemsChoiceType11[] { ItemsChoiceType11.Value, ItemsChoiceType11.Style }; return trt; } private LocIDStringWithDataTypeAttribute CreateHeadLineTextRunValue() { LocIDStringWithDataTypeAttribute value = new LocIDStringWithDataTypeAttribute(); value.Value = (Headline == null) ? "标题" : Headline; value.DataType = StringWithDataTypeAttributeDataType.String; return value; } private StyleType CreateHeadlineTextRunStyle() { StyleType st = new StyleType(); st.Items = new object[] { "宋体", "14pt", "Bold", }; st.ItemsElementName = new ItemsChoiceType4[] { ItemsChoiceType4.FontFamily, ItemsChoiceType4.FontSize, ItemsChoiceType4.FontWeight }; return st; } private StyleType CreateHeadlineParagraphStyle() { StyleType st = new StyleType(); st.Items = new object[] { "Center" }; st.ItemsElementName = new ItemsChoiceType4[] { ItemsChoiceType4.TextAlign }; return st; } private StyleType CreateHeadlineTextboxStyle() { StyleType headlineStyle = new StyleType(); headlineStyle.Items = new object[] { CreateHeadlineTextboxBorder(), "2pt", "2pt", "2pt", "2pt" }; headlineStyle.ItemsElementName = new ItemsChoiceType4[] { ItemsChoiceType4.Border, ItemsChoiceType4.PaddingLeft, ItemsChoiceType4.PaddingRight, ItemsChoiceType4.PaddingTop, ItemsChoiceType4.PaddingBottom }; return headlineStyle; } private BorderType CreateHeadlineTextboxBorder() { BorderType headlineTextboxBorder = new BorderType(); headlineTextboxBorder.Items = new object[] { "None" }; headlineTextboxBorder.ItemsElementName = new ItemsChoiceType2[] { ItemsChoiceType2.Style }; return headlineTextboxBorder; } private StyleType CreateBodyStyle() { return new StyleType(); } /// <summary> /// 设置页面基本属性—页眉、页脚、页宽、页高、左边距、右边距等 /// </summary> private PageType CreatePage() { PageType page = new PageType(); // 根据微软官方文档,PaperSize.Height, PaperSize.Width and Margins的Left, Right, Top, Bottom are in hundredths of an inch. string pageHeight = (PageSettings == null) ? "29.7cm" : ((double)PageSettings.PaperSize.Height / 100.0).ToString() + "in"; string pageWidth = (PageSettings == null) ? "21cm" : ((double)PageSettings.PaperSize.Width / 100.0).ToString() + "in"; string leftMargin = (PageSettings == null) ? "2cm" : ((double)PageSettings.Margins.Left / 100.0).ToString() + "in"; string rightMargin = (PageSettings == null) ? "2cm" : ((double)PageSettings.Margins.Right / 100.0).ToString() + "in"; string topMargin = (PageSettings == null) ? "2cm" : ((double)PageSettings.Margins.Top / 100.0).ToString() + "in"; string bottomMargin = (PageSettings == null) ? "2cm" : ((double)PageSettings.Margins.Bottom / 100.0).ToString() + "in"; // TODO: // 页眉、页脚(后面再做) page.Items = new object[] { //创建Header不能为空 // CreatePageHeader(), pageHeight, pageWidth, leftMargin, rightMargin, topMargin, bottomMargin, "0.13cm", }; page.ItemsElementName = new ItemsChoiceType77[] { // ItemsChoiceType77.PageHeader, ItemsChoiceType77.PageHeight, ItemsChoiceType77.PageWidth, ItemsChoiceType77.LeftMargin, ItemsChoiceType77.RightMargin, ItemsChoiceType77.TopMargin, ItemsChoiceType77.BottomMargin, ItemsChoiceType77.ColumnSpacing }; return page; } /// <summary> /// PageHeader和PageFooter也只是TextRun里Value的数据不一样 /// </summary> /// <returns></returns> private PageSectionType CreatePageHeader() { return new PageSectionType(); } private PageSectionType CreatePageFooter() { return new PageSectionType(); } /// <summary> /// 把Report序列化为流 /// </summary> /// <param name="stream">根据Report序列化好的流</param> public void Write(Stream stream) { Write(stream, CreateReport()); } public void Write(Stream stream, Report report) { new XmlSerializer(typeof(Report)).Serialize(stream, report); } public Report Read(Stream stream) { return (Report)new XmlSerializer(typeof(Report)).Deserialize(stream); } /// <summary> /// 把和DataGrid对应的rdlc模板文件反序列化为Report /// </summary> /// <param name="rdlcModelFilePath">和DataGrid对应的rdlc模板文件</param> /// <returns>反序列化之后的Report</returns> public Report Read(string rdlcModelFilePath) { using (var stream = new FileStream(rdlcModelFilePath, FileMode.Open)) { return Read(stream); } } public void Write(string rdlcModelFilePath) { using (var stream = new FileStream(rdlcModelFilePath, FileMode.OpenOrCreate)) { stream.SetLength(0); Write(stream); } } /// <summary> /// 计算Report的宽度,页宽 - 左边距 - 右边距 /// </summary> /// <returns></returns> public string CalcReportWidth() { string reportWidth = String.Empty; const double size = 100.0; reportWidth = (PageSettings == null) ? "6.5in" : ((double)(PageSettings.PaperSize.Width - PageSettings.Margins.Left - PageSettings.Margins.Right) / size).ToString() + "in"; return reportWidth; }
public class TablixRdlcGenerator { #region Properties // DataGrid 的DataGridColumn的Header private List<string> headerNames = new List<string>(); public List<string> HeaderNames { get { return headerNames; } } // 对应DataGrid Binding的Path private List<string> fieldNames = new List<string>(); public List<string> FieldNames { get { return fieldNames; } } public string DataSetName { get; set; } // 对应DataGrid Column的ActualWidth private List<string> widths = new List<string>(); public List<string> Widths { get { return widths; } } #endregion #region Methods private void ResetValues(List<string> p, List<string> v) { p.Clear(); if (v != null) { p.AddRange(v); } } public void ResetHeaderNames(List<string> hns) { ResetValues(HeaderNames, hns); } public void ResetFieldNames(List<string> fns) { ResetValues(FieldNames, fns); } public void ResetWidths(List<string> widths) { ResetValues(Widths, widths); } /// <summary> /// 矩阵和Table对应的Tablix稍微有些不一样,如对于矩阵,TablixBody里的表头和数据项 /// 一些值会拆分到TablixColumnHierarchy和TablixRowHierarchy里TablixMember--TablixHeader--CellContents--Textbox /// 对于DataGrid我们用最简单的Table就好 /// </summary> /// <returns></returns> public TablixType CreateTablix() { TablixType tablix = new TablixType(); tablix.Name = "dataGridTablix0"; tablix.Items = new object[] { // 创建TablixCorner不能创建个空的 // CreateTablixCorner(), CreateTablixBody(), CreateTablixColumnHierarchy(), CreateTablixRowHierarchy(), true, true, CreateDataSetName(), // Top, Left, Height, Width可具体调整 // Top, Left ---> Location(距离左上角);Height, Width ---> Size // (Tablix的大小,这个Width不管用,具体是由各个TablixColumn的Width之和决定) "1.8cm", "2cm", "2cm", "17cm", CreateTablixStyle(), }; tablix.ItemsElementName = new ItemsChoiceType73[] { // ItemsChoiceType73.TablixCorner, ItemsChoiceType73.TablixBody, ItemsChoiceType73.TablixColumnHierarchy, ItemsChoiceType73.TablixRowHierarchy, ItemsChoiceType73.RepeatColumnHeaders, ItemsChoiceType73.RepeatRowHeaders, ItemsChoiceType73.DataSetName, ItemsChoiceType73.Top, ItemsChoiceType73.Left, ItemsChoiceType73.Height, ItemsChoiceType73.Width, ItemsChoiceType73.Style }; return tablix; } /// <summary> /// non-essential element, so make it emtpy temprorily /// 看样子是表头行,纵向合并的单元格(如纵向两行合并为一行)等相关的 /// </summary> /// <returns></returns> private TablixCornerType CreateTablixCorner() { return new TablixCornerType(); } private TablixBodyType CreateTablixBody() { TablixBodyType tablixBody = new TablixBodyType(); tablixBody.Items = new object[] { CreateTablixColumns(), CreateTablixRows(), }; return tablixBody; } private void EnumHeaderNames(Action<int> act) { for (int i = 0; i < HeaderNames.Count; i++) { act(i); } } private TablixColumnsType CreateTablixColumns() { TablixColumnsType tablixColumns = new TablixColumnsType(); // 根据DataGridColumns的数量来决定创建几列,并且每列要把具体的宽度传进去 tablixColumns.Items = new object[headerNames.Count]; EnumHeaderNames(p => { tablixColumns.Items[p] = CreateTablixColumn(p); }); return tablixColumns; } private TablixColumnType CreateTablixColumn(int index) { // Width of column,应该根据DataGridColumn.Width来具体设定,暂时给个固定值 return new TablixColumnType() { Items = new object[] { Widths[index] } }; } /// <summary> /// 对于DataGrid只应有两行,一行是Header,一行是数据 /// 如果有求 /// </summary> /// <returns>TablixRowsType</returns> private TablixRowsType CreateTablixRows() { TablixRowsType tablixRows = new TablixRowsType(); tablixRows.Items = new object[] { CreateTablixRowHeader(), CreateTablixRowData(), }; return tablixRows; } private TablixRowType CreateTablixRowType(bool isHeader) { TablixRowType trt = new TablixRowType(); trt.Items = new object[] { "0.23622in", // Default height CreateTablixCells(isHeader), // Header的Cells的内容和Data的Cells的内容应该不同 }; return trt; } /// <summary> /// Tablix Header /// </summary> /// <returns></returns> private TablixRowType CreateTablixRowHeader() { return CreateTablixRowType(true); } private TablixRowType CreateTablixRowData() { return CreateTablixRowType(false); } private TablixCellsType CreateTablixCells(bool isHeaerCell) { TablixCellsType tablixCells = new TablixCellsType(); // 根据DataGridColumns的数量来决定创建几个Cell, Header应传DataGridColumn.Header数据 tablixCells.Items = new object[HeaderNames.Count]; EnumHeaderNames(p => { tablixCells.Items[p] = CreateTablixCell(isHeaerCell, p); }); return tablixCells; } private TablixCellType CreateTablixCell(bool isHeaderCell, int index) { TablixCellType tablixCell = new TablixCellType(); // 基本的只要"CellContents"就够了 tablixCell.Items = new object[] { CreateCellContentes(isHeaderCell, index) }; return tablixCell; } private CellContentsType CreateCellContentes(bool isheaderCell, int index) { CellContentsType cellContents = new CellContentsType(); // 对于DataGrid转换的rdlc,通常是一个Textbox。具体可以是Chart、Image、Line、Rectangle、Subreport等等 cellContents.Items = new object[] { CreateTablixCellTextbox(isheaderCell, index) }; cellContents.ItemsElementName = new ItemsChoiceType71[] { ItemsChoiceType71.Textbox }; return cellContents; } private TextboxType CreateTablixCellTextbox(bool isHeaderCell, int index) { TextboxType tablixCellTextbox = new TextboxType(); // 对于Header的Textbox可以复杂一点,多些字体、背景颜色等字段的定义 // Data的简单点//isHeaderCell ? headerNames[index] : tablixCellTextbox.Name = isHeaderCell ? "TB" + fieldNames[index] : fieldNames[index]; tablixCellTextbox.Items = new object[] { true, true, CreateTablixCellTextboxParagraphs(isHeaderCell, isHeaderCell ? headerNames[index] : fieldNames[index]), CreateTablixCellTextboxStyle(), }; tablixCellTextbox.ItemsElementName = new ItemsChoiceType14[] { ItemsChoiceType14.CanGrow, ItemsChoiceType14.KeepTogether, ItemsChoiceType14.Paragraphs, ItemsChoiceType14.Style, }; return tablixCellTextbox; } private ParagraphsType CreateTablixCellTextboxParagraphs(bool isHeaderCell, string name) { ParagraphsType pt = new ParagraphsType(); pt.Paragraph = new ParagraphType[] { CreateTablixCellTextboxParagraph(isHeaderCell, name) }; return pt; } private ParagraphType CreateTablixCellTextboxParagraph(bool isHeaderCell, string name) { ParagraphType pt = new ParagraphType(); pt.Items = new object[] { CreateTablixCellTextboxParagraphTextRuns(isHeaderCell, name), CreateTablixCellTextboxParagraphStyle(isHeaderCell), }; pt.ItemsElementName = new ItemsChoiceType12[] { ItemsChoiceType12.TextRuns, ItemsChoiceType12.Style, }; return pt; } private TextRunsType CreateTablixCellTextboxParagraphTextRuns(bool isHeaderCell, string name) { TextRunsType trt = new TextRunsType(); trt.TextRun = new TextRunType[] { CreateTablixCellTextboxParagraphTextRun(isHeaderCell, name) }; return trt; } private TextRunType CreateTablixCellTextboxParagraphTextRun(bool isHeaderCell, string name) { TextRunType trt = new TextRunType(); trt.Items = new object[] { CreateTablixTextRunValue(isHeaderCell, name), CreateTablixTextRunStyle(isHeaderCell), }; trt.ItemsElementName = new ItemsChoiceType11[] { ItemsChoiceType11.Value, ItemsChoiceType11.Style, }; return trt; } // 数据项和Header的关键不一样就在这个了 private LocIDStringWithDataTypeAttribute CreateTablixTextRunValue(bool isHeaderCell, string name) { LocIDStringWithDataTypeAttribute v = new LocIDStringWithDataTypeAttribute(); v.Value = isHeaderCell ? name : "=Fields!" + name + ".Value"; v.DataType = StringWithDataTypeAttributeDataType.String; return v; } private StyleType CreateTablixTextRunStyle(bool isHeaderCell) { StyleType st = new StyleType(); string fontSize = isHeaderCell ? "11pt" : "10pt"; string FontWeight = isHeaderCell ? "Bold" : "Default"; st.Items = new object[] { "宋体", fontSize, FontWeight, }; st.ItemsElementName = new ItemsChoiceType4[] { ItemsChoiceType4.FontFamily, ItemsChoiceType4.FontSize, ItemsChoiceType4.FontWeight, }; return st; } // 暂时设为表头行“居中对齐”,数据行“靠左对齐”;后面可具体定制表头行和数据行的对齐方式 private StyleType CreateTablixCellTextboxParagraphStyle(bool isHeaderCell) { StyleType st = new StyleType(); st.Items = new object[] { isHeaderCell ? "Center" : "Left" }; st.ItemsElementName = new ItemsChoiceType4[] { ItemsChoiceType4.TextAlign }; return st; } // ***************************** // Header的Color和Style可以和数据不同,下面是默认的Sytle,可自定义 //****************************** private StyleType CreateTablixCellTextboxStyle() { StyleType st = new StyleType(); st.Items = new object[] { CreateTablixCellTextboxBorder(), "2pt", "2pt", "2pt", "2pt", }; st.ItemsElementName = new ItemsChoiceType4[] { ItemsChoiceType4.Border, // ItemsChoiceType4.BackgroundColor, 默认数据没有BackgroundColor ItemsChoiceType4.PaddingLeft, ItemsChoiceType4.PaddingRight, ItemsChoiceType4.PaddingTop, ItemsChoiceType4.PaddingBottom, }; return st; } private BorderType CreateTablixCellTextboxBorder() { BorderType bt = new BorderType(); bt.Items = new object[] { "Black", "Solid", "1pt" }; bt.ItemsElementName = new ItemsChoiceType2[] { ItemsChoiceType2.Color, ItemsChoiceType2.Style, ItemsChoiceType2.Width }; return bt; } /// <summary> /// 按最简单的来,DataGrid对应的应该是有几个column创建几个TablixMember /// </summary> private TablixHierarchyType CreateTablixColumnHierarchy() { return new TablixHierarchyType() { Items = new object[] { CreateTablixColumnMembers() } }; } private TablixMembersType CreateTablixColumnMembers() { TablixMembersType tmts = new TablixMembersType(); tmts.TablixMember = new TablixMemberType[HeaderNames.Count]; EnumHeaderNames(p => { tmts.TablixMember[p] = CreateTablixColumnMember(); }); return tmts; } // DataGrid的Column对应的TablixMember创建一个空的就行 private TablixMemberType CreateTablixColumnMember() { return new TablixMemberType(); } // DataGrid按最简单的默认的来,即创建2个TablixMember即可 private TablixHierarchyType CreateTablixRowHierarchy() { return new TablixHierarchyType() { Items = new object[] { CreateTablixRowMembers() } }; } private TablixMembersType CreateTablixRowMembers() { TablixMembersType tablixMembers = new TablixMembersType(); tablixMembers.TablixMember = new TablixMemberType[] { CreateTablixRowMember0(), CreateTablixRowMember1(), }; return tablixMembers; } private TablixMemberType CreateTablixRowMember0() { TablixMemberType tmt = new TablixMemberType(); tmt.Items = new object[] { CreateTablixRowMemberKeepWithGroup(), true, }; tmt.ItemsElementName = new ItemsChoiceType72[] { ItemsChoiceType72.KeepWithGroup, ItemsChoiceType72.RepeatOnNewPage, }; return tmt; } private TablixMemberTypeKeepWithGroup CreateTablixRowMemberKeepWithGroup() { return TablixMemberTypeKeepWithGroup.After; } private TablixMemberType CreateTablixRowMember1() { TablixMemberType tmt = new TablixMemberType(); tmt.Items = new object[] { CreateTablixRowMemberGroup() }; tmt.ItemsElementName = new ItemsChoiceType72[] { ItemsChoiceType72.Group }; return tmt; } private GroupType CreateTablixRowMemberGroup() { return new GroupType() { Name = "详细信息" }; } /// <summary> /// ReportDataSource.Name和RDLC文件的DataSetNamey应保持一致 /// 对于DataGrid构造的报表,可统一固定用"CustormerDataSet"; /// DataSetName不需要作为参数传进来 /// </summary> /// <returns>DataSet Name</returns> private string CreateDataSetName() { return String.IsNullOrEmpty(DataSetName) ? "CustomerDataSet" : DataSetName; } private StyleType CreateTablixStyle() { StyleType st = new StyleType(); st.Items = new object[] { CreateTablixBorder() }; st.ItemsElementName = new ItemsChoiceType4[] { ItemsChoiceType4.Border }; return st; } // Tablix的外边框格式 private BorderType CreateTablixBorder() { BorderType bt = new BorderType(); bt.Items = new object[] { "Black", "Solid", "2pt" }; bt.ItemsElementName = new ItemsChoiceType2[] { ItemsChoiceType2.Color, ItemsChoiceType2.Style, ItemsChoiceType2.Width }; return bt; } #endregion }
第三步:提取DataGrid的数据
1、主要从DataGrid提取每个Column的Width、BindingPath、Header的Content和每个单元格的数据。数据填充DataTable的Rows, BindingPath填充DataTable的Columns,
Header的Content用来作为报表Tablix的标题行。BindingPath,对于DataTemplate和DataGridHyperlinkColumn不知道咋个取提取数据.
2、dataGrid.ScrollIntoView(dataGrid.Items[rowIndex])这个是关键。DataGrid用了一个虚拟啥子来着的(名字不重要,原理简单,计算机领域大量处理性能的都是用这个办法),就是复用界面显示,一个窗口里能装下的几十条RowContainer,每次滚动,人要看到的时候才重新提取新的要显示的数据。
这样提取数万条记录时,界面不会卡,也不会占用很多内存,每次是要显示的时候才取几十条,一点点取。要用,才给,只给需要的那点。
/// <summary> /// DataGrid的转换器,从DataGrid里提取出数据源,以及HeaderName、Binding的Path和ActualWidth /// </summary> /// <param name="dataGrid">包含数据的DatGrid</param> /// <param name="dt">DataGrid数据源转换成的DataTable</param> /// <param name="headerNames">DataGridColumn.Header</param> /// <param name="bindingPaths"> DataGridBoundColumn.Binding.Path</param> public static void DataGridAdapter(this DataGrid dataGrid, DataTable dt, List<string> headerNames, List<string> bindingPaths, List<double> widths) { // 取出DataGridColumn的Header,BingdingPath,ActualWidth为构造rdlc文件准备数据 headerNames.Clear(); bindingPaths.Clear(); widths.Clear(); for (int index = 0; index < dataGrid.Columns.Count; index++) { headerNames.Add(dataGrid.Columns[index].Header as string); widths.Add(dataGrid.Columns[index].ActualWidth); //string tempBindingPath = ((dataGrid.Columns[index] as DataGridBoundColumn).Binding as Binding).Path.Path; string tempBindingPath = GetDataGridColumnBindingPath(dataGrid.Columns[index]); bindingPaths.Add(tempBindingPath); if (String.IsNullOrEmpty(tempBindingPath) == false) dt.Columns.Add(tempBindingPath, typeof(string)); } for (int rowIndex = 0; rowIndex < dataGrid.Items.Count; rowIndex++) { // 要显示后,才能取到数据 DataGridRow rowContainer = (DataGridRow)dataGrid.ItemContainerGenerator.ContainerFromIndex(rowIndex); // 因为Peformance问题,EnableRowVirtualization被设置为true,只加载要显示的数据 // 重新滚动,然后再重用这些DataGridRow if (rowContainer == null) { dataGrid.UpdateLayout(); dataGrid.ScrollIntoView(dataGrid.Items[rowIndex]); rowContainer = (DataGridRow)dataGrid.ItemContainerGenerator.ContainerFromIndex(rowIndex); } if (rowContainer != null) { DataGridCellsPresenter presenter = DataGridHelper.GetVisualChild<DataGridCellsPresenter>(rowContainer); if (presenter != null) { DataRow dr = dt.NewRow(); bool isLastRowAllEmpty = true; for (int columnIndex = 0; columnIndex < bindingPaths.Count; columnIndex++) { DataGridCell cell = (DataGridCell)presenter.ItemContainerGenerator.ContainerFromIndex(columnIndex); if (cell != null) { if (cell.Content is TextBlock) { //TODO: DataGridHyperlinkColumn取不到数据 dr[bindingPaths[columnIndex]] = (cell.Content as TextBlock).Text; if (!String.IsNullOrEmpty((cell.Content as TextBlock).Text)) isLastRowAllEmpty = false; } else if (cell.Content is CheckBox) { string value = ((cell.Content as CheckBox).IsChecked == true) ? "是" : "否"; dr[bindingPaths[columnIndex]] = value; } else if (cell.Content is ComboBox) { dr[bindingPaths[columnIndex]] = (cell.Content as ComboBox).Text; if (!String.IsNullOrEmpty((cell.Content as ComboBox).Text)) isLastRowAllEmpty = false; } } } if (dataGrid.CanUserAddRows && (rowIndex == dataGrid.Items.Count - 1)) { // 如果CanUserAddRows被设置为true,只有最后一行的数据都不为空(CheckBox不算作内),才把数据添加到DataTable if (isLastRowAllEmpty) { continue; } } dt.Rows.Add(dr); } } } }
第四步:填充数据
关键在设置ReportViewer类的LocalReport.ReportPath 和LocalReport.DataSources这两项。
/// <summary> /// 报表数据源发生变化时,及时更新显示报表控件的数据源 /// </summary> /// <param name="reportDataModel">报表数据模型基类</param> public void ResetReportData(ReportDataModel reportDataModel) { if (reportDataModel != null) { reportViewer.Reset(); reportViewer.LocalReport.DataSources.Clear(); reportViewer.Clear(); if (!reportDataModel.IsDataGrid) reportViewer.LocalReport.ReportPath = reportDataModel.RDLCReportPath; else { // 如果是DataGrid转换成的,直接从内存流里加载数据 if (reportDataModel.MsDataGrid != null) { reportViewer.LocalReport.LoadReportDefinition(reportDataModel.MsDataGrid); // 用完就释放掉,流所占用的所有资源 // reportDataModel.MsDataGrid.Dispose(); } } reportViewer.LocalReport.DataSources.Add(reportDataModel.ReportDataSource); reportViewer.RefreshReport(); } }
第五步:提供一个ReportHelper类
具体拼接数据以及计算高度等,还有用另一套办法实现第二个功能。
1、根据DataGrid每列的宽度,按百分比,重新设置每列的宽度。
1 /// <summary> 2 /// 根据DataGrid的Column的Actual Width来设置报表里对应Tablix的TablixColumn的宽度 3 /// </summary> 4 /// <param name="reportWidth">报表的总宽度</param> 5 /// <param name="widths">DataGrid的Column的Actual Width</param> 6 /// <param name="tablixColumnWidths">重新按百分比计算的TablixColumn的宽度列表</param> 7 public static void CalcTablixColumnWidth(string reportWidth, List<double> widths, out List<string> tablixColumnWidths) 8 { 9 double totalWidth = 0.0; 10 double originalTotalWidth = 0.0; 11 List<double> rateColumnWidth = new List<double>(); 12 string unit = reportWidth.Substring(reportWidth.Length - 2, 2); 13 14 // 取到报表宽度字符串除去单位in或者cm的数值 15 Double.TryParse(reportWidth.Substring(0, reportWidth.Length - 2), out totalWidth); 16 17 18 for (int index = 0; index < widths.Count; index++) 19 originalTotalWidth += widths[index]; 20 21 22 for (int index = 0; index < widths.Count; index++) 23 rateColumnWidth.Add(widths[index] / originalTotalWidth); 24 25 tablixColumnWidths = new List<string>(); 26 tablixColumnWidths.Clear(); 27 for (int index = 0; index < widths.Count; index++) 28 tablixColumnWidths.Add((rateColumnWidth[index] * totalWidth).ToString() + unit); 29 }
2、把内存中的流读出来,生成对应的RDLC文件,我那里没调用。所以设置LocalReport.ReportPath换成reportViewer.LocalReport.LoadReportDefinition(reportDataModel.MsDataGrid);
1 /// <summary> 2 /// 把内存的流生成为rdlc文件 3 /// </summary> 4 /// <param name="rdlc">按rdlc格式构造成功的内存流</param> 5 public static void DumpRdlc(MemoryStream rdlc) 6 { 7 string tempRdlcPath = AppDomain.CurrentDomain.BaseDirectory + @"../../../CommonReport/Templates/GeneratedDataGrid.rdlc"; 8 if (File.Exists(tempRdlcPath)) 9 File.Delete(tempRdlcPath); 10 11 using (FileStream fs = new FileStream(tempRdlcPath, FileMode.Create)) 12 { 13 rdlc.WriteTo(fs); 14 } 15 }
3、部分调用的代码——给一个简单的RDLC模板,以提供表头的字体格式和表内部数据等样式相关的信息,然后再用DataGrid里提取的数据,填充到报表里
1 /// <summary> 2 /// 将DataGrid的数据抽取出来,转换成rdlc报表,以实现对提供DataGrid的打印、预览、分页和页面布局等功能的支持 3 /// 但需要提供一个rdlc报表的模板,必须包括页眉页脚,至少一列数据和标题,以便拿到数据的表头的 4 /// style和数据项的style,这一列数据项必须是第一项(且第一项的表头和数据都完整提供了style) 5 /// </summary> 6 /// <param name="dataGrid">提供数据的DataGrid</param> 7 /// <param name="reportViewer">要加载DataGrid数据的ReportViewer</param> 8 /// <param name="rdlcModelFileName">rdlc模板的完整路径</param> 9 /// <param name="headline">报表标题</param> 10 public static void Print(this DataGrid dataGrid, CommonReport.Views.ReportViewer reportViewer, string rdlcModelFileName, string headline) 11 { 12 if (!File.Exists(rdlcModelFileName)) return; 13 14 // 从DataGrid对应的rdlc模板里读出报表数据来 15 Report report = null; 16 string dataSourceName = DatasetName; 17 dataGrid.UnderRdlcGenProc(reportViewer, headline, gen => 18 { 19 report = gen.Read(rdlcModelFileName); 20 21 // ReportDataSource的Name应该用取DataSet的Name 22 #region 取DataSourceName 23 24 DataGridHelper.ResetRdlcHeadline(report, headline); 25 for (int index = 0; index < report.Items.Length; index++) 26 { 27 if (report.Items[index] is DataSetsType) 28 { 29 DataSetsType dataSets = report.Items[index] as DataSetsType; 30 dataSourceName = dataSets.DataSet[0].Name; 31 break; 32 } 33 } 34 35 #endregion 36 }, (gen, ms, dt) => 37 { 38 // 根据从DataGrid里提取的数据重新构造rdlc文件 39 RdlcReportAdapter(report, gen.HeaderNames, gen.FieldNames, gen.Widths); 40 gen.Write(ms, report); 41 return new Microsoft.Reporting.WinForms.ReportDataSource(dataSourceName) { Value = dt }; 42 }); 43 }
4、打印的关于页面的一些默认设置(看情况)
1 // 设置默认打印布局模式为“显示物理页” 2 reportViewer.SetDisplayMode(DisplayMode.PrintLayout); 3 reportViewer.ZoomMode = ZoomMode.Percent; 4 reportViewer.ZoomPercent = 100;
5、TreeView反射那块——功能三
1 /// <summary> 2 /// TreeView上选择的项发生变化时,根据所选TreeViewItem的Header信息和Tag里所存储的信息,利用反射构造对应报表的数据类实例 3 /// 加载报表模板,调用委托将数据传到报表的显示控件上 4 /// </summary> 5 /// <param name="sender"></param> 6 /// <param name="e"></param> 7 private void RdlcTree_SelectedItemChanged(object sender, RoutedPropertyChangedEventArgs<object> e) 8 { 9 if ((sender != null) && (sender is TreeView)) 10 { 11 if ((sender as TreeView).SelectedItem is TreeViewItem) 12 { 13 TreeViewItem tempItem = (sender as TreeView).SelectedItem as TreeViewItem; 14 if (tempItem.Tag is TreeViewItemDataType) 15 { 16 TreeViewItemDataType tempTreeViewDataType = tempItem.Tag as TreeViewItemDataType; 17 // 报表类型 18 if (tempTreeViewDataType.UserControlType == TreeViewItemDataType.ControlType.Report) 19 { 20 string reportDataModelInstanceName = tempItem.Header + "Model"; 21 Type type = typeof(ReportDataModel); 22 Assembly assembly = type.Assembly; 23 try 24 { 25 ReportDataModel reportDataModelInstance = (ReportDataModel)assembly.CreateInstance(type.Namespace + "." + reportDataModelInstanceName); 26 if (reportDataModelInstance != null) 27 { 28 reportDataModelInstance.RDLCReportPath = (tempItem.Tag as TreeViewItemDataType).FullPath; 29 reportDataModelInstance.InitDataSource(); 30 if (Viewer != null) 31 Viewer.ResetReportData(reportDataModelInstance); 32 } 33 } 34 catch (Exception ex) 35 { 36 MessageBox.Show(ex.Message); 37 } 38 } 39 40 // DataGrid 类型 41 else if (tempTreeViewDataType.UserControlType == TreeViewItemDataType.ControlType.DataGrid) 42 { 43 Type type = this.GetType(); 44 Assembly assembly = type.Assembly; 45 try 46 { 47 UserControl dataGridUserControlInstance = (UserControl)assembly.CreateInstance(type.Namespace + ".DataGrid." + tempItem.Header); 48 } 49 catch (Exception ex) 50 { 51 MessageBox.Show(ex.Message); 52 } 53 } 54 } 55 } 56 } 57 }
6、通过VisualTreeHelper找到指定类型的子或者父的方法,可在WPF里通用
/// <summary> /// 找出子Visual的特定类型的Parent /// </summary> /// <typeparam name="T">指定类型</typeparam> /// <param name="child">继承自Visual的基本控件类型的子Visual</param> /// <returns></returns> public static T GetParent<T>(Visual child) where T : Visual { T parent = default(T); Visual visual = VisualTreeHelper.GetParent(child) as Visual; parent = visual as T; if (parent == null) return GetParent<T>(visual); else return parent; } /// <summary> /// 遍历取父控件的子Viusal,取到指定类型的子Viusal /// </summary> /// <typeparam name="T">T是Visual或其子类(基本上WPF的控件都是Visual的子类),指定子类型</typeparam> /// <param name="parent">父控件</param> /// <returns>子Viusal</returns> public static T GetVisualChild<T>(Visual parent) where T : Visual { T child = default(T); int numVisuals = VisualTreeHelper.GetChildrenCount(parent); for (int i = 0; i < numVisuals; i++) { Visual visual = (Visual)VisualTreeHelper.GetChild(parent, i); child = visual as T; if (child == null) child = GetVisualChild<T>(visual); else break; } return child; }
7、提供一个数据深拷贝的通用方法(C#类以及除基类型之外,好多都是传引用,这个是地址,值拷贝不好搞,这个方法直接拷贝流,但是必须类的每个字段都支持序列化)
1 /// <summary> 2 /// 对引用类型的数据——“所有字段都加了Serializable特性,以支持序列化” 3 /// 利用序列化和反序列化实现深度拷贝,即拷贝了堆上的数据,搞了个堆的副本 4 /// 而不是浅拷贝那样,只是拷贝了一个指向数据堆的内存地址 5 /// 非常实用的小函数,支持所有引用类型数据 6 /// </summary> 7 /// <param name="original">要拷贝的引用类型数据源</param> 8 /// <returns>源数据的副本</returns> 9 public static object DeepColne(Object original) 10 { 11 // 构造一个临时的内存流 12 using (MemoryStream ms = new MemoryStream()) 13 { 14 // 调用BinaryFormatter来完成复杂的序列化和反序列化工作 15 BinaryFormatter formatter = new BinaryFormatter(); 16 17 // StreamingContext—描述给定的序列化流的源和目标,并提供一个由调用方定义的附加上下文 18 formatter.Context = new StreamingContext(StreamingContextStates.Clone); 19 20 // 把对象图序列化到内存流,original的每个字段必须标记为可序列化,否则会出错 21 formatter.Serialize(ms, original); 22 23 // 反序列化之前需要设置流的当前位置为最开始的位置 24 ms.Position = 0; 25 26 // 把内存流反序列化为对象图,再以基类的形式返回给调用者 27 return formatter.Deserialize(ms); 28 } 29 }
六、运行效果
1、含有DataGrid或者其它控件的界面
2、点击打印后,报表生成
附:
1、ReportItems!具体RDLC报表上控件的名称.Value这个取到报表设计器里任意项的数据,然后就可在表达式里进行各种逻辑运算。例如:
= ReportItems!forestryMaintenance.Value + ReportItems!pension.Value + ReportItems!SumPolicy.Value
+ ReportItems!livingExpenses.Value + ReportItems!resettlement.Value
2、合并单元格,纵向和横向的
这个要分组,具体请搜索网上资源
3、控制每页都显示
对于标题,设置KeepWith属性和Tablix一起出现就好;还有一个办法,是设置其它的属性,暂时忘了,网上有
4、XML很重要,据目前所知,微软的工程文件、WPF、打印、报表、XPS、Office2007以后版本等,XML都是基石。(未完,待续)
5、页面纸张尺寸(PageSetting里的一些关于大小的值,单位都是1/100 inch;页面设置布局排版打印有点麻烦,稍不注意就多出去一点,字体、页眉、页脚、边框、页边距等),如下图:
6、border style
末了,必须感谢和致敬蜡人张前辈:
http://waxdoll.cnblogs.com/archive/2006/02/25/337713.html
2.微软GotReportViewer官方的案例:
http://www.gotreportviewer.com/(约有20来个,很详细。有时候会上不了)