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Posted on
2006-04-11 14:41
蜈蚣
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利用XML实现通用WEB报表输入和输出 开发B/S结构的应用程序最头疼的问题可能就是报表打印了,而很多B/S结构的应用程序常常需要完成非常复杂的报表打印任务。更加郁闷的是,很多报表在使用的的时候还要求将数据输入到数据库中。
方案原理
其实原理很简单,通过XML强大的自定义功能,进行格式解析,我们便能方便的自定义出我们所有需要的格式控制标签,在服务器端进行动态编码后通过WEB服务器传到客户端,然后在客户端打印出我们需要的报表。
服务器的工作流程为:
1. 根据报表类型读取xml模板。
2. 根据报表id读取数据库(如果采用orm的话,也可以是持久对象)的数据。
3. 对xml模板进行数据解析。
4. 构造html标签,并赋值 。
5.用户在客户端进行数据输入或者选择打印
6用户提交后,根据xml模板,对返回值进行解析,将数据保存。
安全性
由于采用的是普通WEB服务器传送数据,因此可以直接采用SSL安全套接字等已经成熟的WEB加密技术,保证了传输的安全性。
由于采用的是80端口,不需要再另外新增加专用端口,减少了安全漏洞的可能性,同时还能方便的穿过双方的的网络防火墙等保护设备。
格式定义
为了能自己控制打印的格式,我们定义了下列的格式标签
标签应用示例:
<?xmlversion="1.0"encoding="utf-8"?>
<doc>
<pagesetting>
<paperwidth>800</paperwidth>
<paperheight>600</paperheight>
<pageleft>0</pageleft>
<pageright>0</pageright>
<pagetop>0</pagetop>
<pagebottom>0</pagebottom>
</pagesetting>
<data>
<DataClass>XReport.ReportDocument, XReport</DataClass>
<get>GetData</get>
<set>SetData</set>
</data>
<report>
<reporthead>
<rowheight="20"></row>
<rowheight="40">
<textalign="center"fontsize="12pt">通用报表</text>
</row>
<rowheight="20">
<textalign="center"fontsize="10pt">([$Eval(get(year),set(year)),Format(align(center),size(50))$]年[$Eval(get(month),set(month))$]月)</text>
</row>
<rowheight="16">
<textalign="set"x="0"y="0"fontsize="9pt">填报单位: [$Eval(get(dw),set(dw)),Format(align(center),size(50))$]</text>
<textalign="set"x="325"y="0"fontsize="9pt">文 号: 报字[1999]7号</text>
</row>
<rowheight="18"></row>
</reporthead>
<reporttablepagesize="20">
<columnscolumnsize="11">
<columnkey="c1"align="center">[$Eval(get(DataItem.#c1)),Format(align(center),size(100%))$]</column>
<columnkey="c2"align="right">[$Eval(get(DataItem.#c2),set(DataItem.#c2)),Format(align(right),size(100%))$]</column>
<columnkey="c3"align="right">[$Eval(get(DataItem.#c3),set(DataItem.#c3)),Format(align(right),size(100%))$]</column>
<columnkey="c4"align="right">[$Eval(get(DataItem.#c4),set(DataItem.#c4)),Format(align(right),size(100%))$]</column>
<columnkey="c5"align="right">[$Eval(get(DataItem.#c5),set(DataItem.#c5)),Format(align(right),size(100%))$]</column>
<columnkey="c6"align="right">[$Eval(get(DataItem.#c6),set(DataItem.#c6)),Format(align(right),size(100%))$]</column>
<columnkey="c7"align="right">[$Eval(get(DataItem.#c7),set(DataItem.#c7)),Format(align(right),size(100%))$]</column>
<columnkey="c8"align="right">[$Eval(get(DataItem.#c8),set(DataItem.#c8)),Format(align(right),size(100%))$]</column>
<columnkey="c9"align="right">[$Eval(get(DataItem.#c9),set(DataItem.#c9)),Format(align(right),size(100%))$]</column>
<columnkey="c10"align="right">[$Eval(get(DataItem.#c10),set(DataItem.#c10)),Format(align(right),size(100%))$]</column>
<columnkey="c11"align="right">[$Eval(get(DataItem.#c11),set(DataItem.#c11)),Format(align(right),size(100%))$]</column>
</columns>
<rows>
<rowkey="r1"fontsize="9pt"align="center">
<cellrowspan="2"colspan="1">项目</cell>
<cellrowspan="1"colspan="2">项目</cell>
<cellrowspan="2"colspan="1">项目</cell>
<cellrowspan="2"colspan="1">项目\n(个)</cell>
<cellrowspan="2"colspan="1">项目</cell>
<cellrowspan="1"colspan="4">项目</cell>
<cellrowspan="2"colspan="1">项目\n(元)</cell>
</row>
<rowkey="r2"fontsize="9pt"align="center">
<cellrowspan="1"colspan="1">县\n(市)(个)</cell>
<cellrowspan="1"colspan="1">乡\n(镇)(个)</cell>
<cellrowspan="1"colspan="1">总计\n(人)</cell>
<cellrowspan="1"colspan="1">项目\n(人)</cell>
<cellrowspan="1"colspan="1">项目\n(人)</cell>
<cellrowspan="1"colspan="1">项目\n(人)</cell>
</row>
<rowkey="r3"fontsize="9pt"align="center">
<cellrowspan="1"colspan="1">1</cell>
<cellrowspan="1"colspan="1">2</cell>
<cellrowspan="1"colspan="1">3</cell>
<cellrowspan="1"colspan="1">4</cell>
<cellrowspan="1"colspan="1">5</cell>
<cellrowspan="1"colspan="1">6</cell>
<cellrowspan="1"colspan="1">7</cell>
<cellrowspan="1"colspan="1">8</cell>
<cellrowspan="1"colspan="1">9</cell>
<cellrowspan="1"colspan="1">10</cell>
<cellrowspan="1"colspan="1">11</cell>
</row>
</rows>
</reporttable>
<reportfoot>
<rowheight="20">
<textalign="set"x="0"y="0"fontsize="9pt">单位负责人:[$Eval(get(fzr),set(fzr)),Format(align(center),size(50))$]</text>
<textalign="set"x="80"y="0"fontsize="9pt">统计负责人:[$Eval(get(tjr),set(tjr)),Format(align(center),size(50))$]</text>
<textalign="set"x="140"y="0"fontsize="9pt">填报人:[$Eval(get(tbr),set(tbr)),Format(align(center),size(50))$]</text>
<textalign="set"x="200"y="0"fontsize="9pt">报出日期:[$Eval(get(tbyear),set(tbyear)),Format(align(center),size(50))$]年</text>
</row>
</reportfoot>
<calcus>
<calcu>[% #r20c2$ = parseValue(#r4c2$,1) * parseValue(#r5c2$,1) + parseValue(#r6c2$,0) + parseValue(#r7c2$,0) %]</calcu>
<calcu>[% #r20c3$ = parseValue(#r4c3$,0) + parseValue(#r5c3$,0) + parseValue(#r6c3$,0) + parseValue(#r7c3$,0) %]</calcu>
<calcu>[% #r20c4$ = parseValue(#r4c4$,0) + parseValue(#r5c4$,0) + parseValue(#r6c4$,0) + parseValue(#r7c4$,0) %]</calcu>
</calcus>
</report>
</doc>
注意事项:
a) 字符编码应该为UTF-8,否则会出现编码错误问题。
b) 应该严格按照XML规定的格式来生成文件,否则XML解析器将不会予以解析。
2. 客户端
效果示例图
打印预览
.Net Web控件方案的实现和扩充
软件原理:
该软件的原理其实很简单,就是要方便的解析出定义好的XML格式标记,解读出文件中标记的参数定义,构造出html标签。
针对大多数报表的功能需要,我只定义了两种格式标签:文本(text)和表格(table),它们的具体属性定义和另外一些设置性的标签定义请参考前文,这里再补充一幅结构图帮助读者理解。如下所示:
此主题相关图片如下:
结构设计:
为了描述所有的样式标记,我先定义了一个抽象基类ReportElement,它拥有一个虚拟方法Draw,然后对应表格和文本,从ReportElement派生出三个子类,分别是ReportTable和ReportText,ReportRow,我还创建了一个ReportParser类用来解析不同的样式标记.
代码实现:
然后为项目添加一个PrintElement的新类,代码如下:
然后再添一个ReportText的新类,代码如下:
using System;
using System.Xml;
using System.Collections;
using System.Text.RegularExpressions;
namespace XReport
![](/Images/OutliningIndicators/ExpandedBlockStart.gif) ![](/Images/OutliningIndicators/ContractedBlock.gif) {
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif) /**////<summary>
/// 报表成员解析器
///</summary>
public class ReportParser
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif) {
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif) /**////<summary>
/// 构造器
///</summary>
public ReportParser()
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif) {
}
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif) /**////<summary>
/// 解析器
///</summary>
///<param name="s">带格式字符串</param>
///<returns></returns>
public ArrayList Parser(string s)
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif) {
ArrayList list = new ArrayList();
string soure = s;
//表达式解析
string regStr = @"\[\$(?<eval>.*?)\$\]";
Regex r = new Regex(regStr);
MatchCollection mc = r.Matches(soure);
foreach (Match m in mc)
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif) {
//表达式
string eval = string.Format("[${0}$]",m.Groups["eval"].Value);
list.Add(eval);
}
return list;
}
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif) /**////<summary>
/// 解析器
///</summary>
///<param name="s">带格式字符串</param>
///<returns></returns>
public ArrayList ParserClient(string s)
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif) {
ArrayList list = new ArrayList();
string soure = s;
//表达式解析
string regStr = @"\[\%(?<eval>.*?)\%\]";
Regex r = new Regex(regStr);
MatchCollection mc = r.Matches(soure);
foreach (Match m in mc)
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif) {
//表达式
string eval = m.Groups["eval"].Value;
list.Add(eval);
}
return list;
}
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif) /**////<summary>
/// 取得参数字符串中的值get(key)
///</summary>
///<param name="eval">参数字符串</param>
///<returns>key</returns>
public string GetKey(string eval,string Name)
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif) {
Regex rg = new Regex(string.Format(@"{0}\((?<g>.*?)\)",Name));
if(!rg.IsMatch(eval))
return null;
else
return rg.Match(eval).Groups["g"].Value;
}
}//class
}
找一个hashtable用来传递报表的临时值。这样就不用关心数据的名称及出现的具体位置了。
using System;
using System.Xml;
using System.Reflection;
using System.Collections;
namespace XReport
![](/Images/OutliningIndicators/ExpandedBlockStart.gif) ![](/Images/OutliningIndicators/ContractedBlock.gif) {
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif) /**////<summary>
/// 报表数据
///</summary>
public class ReportData
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif) {
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif) /**////<summary>
/// 利用hash表保存数据
///</summary>
private Hashtable data;
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif) /**////<summary>
/// 构造器
///</summary>
public ReportData()
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif) {
data = new Hashtable();
}
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif) /**////<summary>
/// 添加一条数据
///</summary>
///<param name="key">关键字</param>
///<param name="o">对象</param>
public void Add(string key,object o)
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif) {
data.Add(key,o);
}
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif) /**////<summary>
/// 删除一个对象
///</summary>
///<param name="key">关键字</param>
public void Delete(string key)
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif) {
data.Remove(key);
}
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif) /**////<summary>
/// 取得报表数据
///</summary>
///<param name="element">xml节点(doc\data)</param>
///<param name="ReportID">报表id</param>
///<returns></returns>
public static ReportData GetReportData(XmlNode element,string ReportID)
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif) {
//该报表的数据管理类
string dataClass = ReportElement.GetChildNode(element,"DataClass").InnerText;
string method = ReportElement.GetChildNode(element,"get").InnerText;
Type t = Type.GetType(dataClass);
//数据方法
BindingFlags flags = BindingFlags.InvokeMethod|BindingFlags.Instance|BindingFlags.Public|BindingFlags.Static;
//设置参数
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif) Object[] args = new Object[] {ReportID};
//调用方法,返回报表数据
return (ReportData)t.InvokeMember(method,flags,null,null,args);
}
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif) /**////<summary>
/// 设置报表数据
///</summary>
///<param name="element">xml节点(doc\data)</param>
///<param name="ReportID">报表id</param>
///<returns></returns>
public static object SetReportData(XmlNode element,ReportData data,string ReportID)
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif) {
//该报表的数据管理类
string dataClass = ReportElement.GetChildNode(element,"DataClass").InnerText;
string method = ReportElement.GetChildNode(element,"set").InnerText;
Type t = Type.GetType(dataClass);
//数据方法
BindingFlags flags = BindingFlags.InvokeMethod|BindingFlags.Instance|BindingFlags.Public|BindingFlags.Static;
//设置参数
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif) Object[] args = new Object[] {data,ReportID};
//调用方法,返回报表数据
return t.InvokeMember(method,flags,null,null,args);
}
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif) /**////<summary>
/// 取得数据
///</summary>
///<param name="key">关键字</param>
///<returns></returns>
public object Get(string key)
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif) {
return data[key];
}
}
}
现在是呈现报表和保存报表数据的时候了
using System;
using System.Xml;
using System.Text;
using System.Web;
using System.Web.UI;
using System.Collections;
using System.Web.UI.HtmlControls;
namespace XReport
![](/Images/OutliningIndicators/ExpandedBlockStart.gif) ![](/Images/OutliningIndicators/ContractedBlock.gif) {
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif) /**////<summary>
/// 报表文档
///</summary>
public class ReportDocument
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif) {
private XmlDocument doc ;
private HtmlControl _Canvas;
private string xmlPath;
ReportData data;
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif) /**////<summary>
/// 画布
///</summary>
public HtmlControl Canvas
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif) {
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif) get {return _Canvas;}
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif) set {_Canvas = value;}
}
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif) /**////<summary>
/// 构造器
///</summary>
///<param name="path">xml定义文件路径</param>
public ReportDocument(string path)
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif) {
xmlPath = path;
doc = new XmlDocument();
doc.Load(path);
}
![](/Images/OutliningIndicators/ContractedSubBlock.gif) 初始化画布(用于容纳报表)#region 初始化画布(用于容纳报表)
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif) /**////<summary>
/// 初始化画布(用于容纳报表)
///</summary>
private void InitCanvas()
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif) {
XmlNode xRoot = ReportElement.GetChildNode(doc,"doc");
XmlNode xPageSetting = ReportElement.GetChildNode(xRoot,"pagesetting");
XmlNode xReport = ReportElement.GetChildNode(xRoot,"report");
XmlNode xReportHead = ReportElement.GetChildNode(xReport,"reporthead");
XmlNode xReportFoot = ReportElement.GetChildNode(xReport,"reportfoot");
XmlNode xReportTable = ReportElement.GetChildNode(xReport,"reporttable");
//设置报表格式
_Canvas = new System.Web.UI.HtmlControls.HtmlGenericControl("DIV");
_Canvas.Style.Add("width",ReportElement.GetChildNode(xPageSetting,"paperwidth").InnerText);
_Canvas.Style.Add("heiht",ReportElement.GetChildNode(xPageSetting,"paperheight").InnerText);
_Canvas.Style.Add("OVERFLOW","hidden");
//绘制页头
foreach(XmlNode xNode in xReportHead.ChildNodes)
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif) {
ReportRow rw = new ReportRow(xNode);
rw.Draw(_Canvas);
}
//绘制表格
ReportTable rt = new ReportTable(xReportTable);
rt.Draw(_Canvas);
//绘制页脚
foreach(XmlNode xNode in xReportFoot.ChildNodes)
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif) {
ReportRow rw = new ReportRow(xNode);
rw.Draw(_Canvas);
}
HtmlContainerControl c = new HtmlGenericControl("script");//添加客户端计算脚本
c.InnerText = ParseClientScript();
_Canvas.Controls.Add(c);
}
#endregion
![](/Images/OutliningIndicators/ContractedSubBlock.gif) 输出报表对象及报表所包含的值#region 输出报表对象及报表所包含的值
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif) /**////<summary>
/// 输出报表对象
///</summary>
///<returns></returns>
public System.Web.UI.Control WriteReport()
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif) {
//读取报表数据
XmlNode xRoot = ReportElement.GetChildNode(doc,"doc");
XmlNode xData = ReportElement.GetChildNode(xRoot,"data");
data = ReportData.GetReportData(xData,"12345");
InitCanvas();
parserCanvas(_Canvas);
return _Canvas;
}
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif) /**////<summary>
/// 解析客户端脚本(动态计算用)
///</summary>
private string ParseClientScript()
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif) {
XmlNode xRoot = ReportElement.GetChildNode(doc,"doc");
XmlNode xReport = ReportElement.GetChildNode(xRoot,"report");
XmlNode xCalcus = ReportElement.GetChildNode(xReport,"calcus");//计算节点
//报表解析器
ReportParser rp = new ReportParser();
ArrayList list = rp.ParserClient(xCalcus.InnerXml);
StringBuilder sb = new StringBuilder();
sb.Append(" function calcus(){\n");
for(int i = 0 ;i< list.Count;i ++)
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif) {
string eval = (string)list[i];
eval = eval.Replace("#","document.all['txt_");
eval = eval.Replace("$","'].value");
sb.Append(eval);
sb.Append(";\n");
}
sb.Append("}\n");
sb.Append(" window.onload = calcus;\n");
sb.Append(" document.onkeyup = calcus;\n");
sb.Append("function parseValue(v,def){\n");
sb.Append(" if(isNaN(parseFloat(v)))\n");
sb.Append(" return def;\n");
sb.Append(" else\n");
sb.Append(" return parseFloat(v);\n");
sb.Append("}\n");
return sb.ToString();
}
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif) /**////<summary>
/// 解析画布中的参数
///</summary>
///<param name="c"></param>
private void parserCanvas(Control c)
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif) {
HtmlContainerControl cc = c as HtmlContainerControl;
if(cc!=null &&( cc.TagName.ToLower() == "td" || cc.TagName.ToLower() == "span"))
cc.InnerHtml = Parser(cc.InnerHtml);
foreach(Control fc in c.Controls)
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif) {
parserCanvas(fc);
}
}
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif) /**////<summary>
/// 解析参数
///</summary>
///<param name="s"></param>
///<returns></returns>
private string Parser(string s)
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif) {
string soure = s;
//取得参数
ReportParser rp = new ReportParser();
ArrayList evalList = rp.Parser(s);
for(int i = 0; i< evalList.Count;i ++)
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif) {
string eval = (string)evalList[i];
//get关键字
string getkey = rp.GetKey(eval,"get");
//set关键字
string setkey = rp.GetKey(eval,"set");
string align = rp.GetKey(eval,"align");
string size = rp.GetKey(eval,"size");
if(size == null || size == "")size = "50";
if(align == null || align == "")align = "center";
//判断是否需要输入
if(setkey == null || setkey == "")
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif) {
//如果值为空用“ ”代替
if(data.Get(getkey) == null)
soure = soure.Replace(eval," ");
else
soure = soure.Replace(eval,data.Get(getkey).ToString());
}
else
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif) {
//输入框
string sinput ="<input name='txt_{0}' type='text' style='background-color:#eeeeee;color:#003366;";
sinput += "border-top:1px none;border-right:1px none;border-left:1px none;border-bottom:1px solid;";
sinput += "TEXT-ALIGN:{1};width:{2}' value='{3}'>";
if(data.Get(getkey) == null)
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif) {
//如果值为空用“”代替
sinput = string.Format(sinput,getkey,align,size,"");
soure = soure.Replace(eval,sinput);
}
else
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif) {
//将值保持到输入框
sinput = string.Format(sinput,getkey,align,size,data.Get(getkey).ToString());
soure = soure.Replace(eval,sinput);
}
}
}
//返回被解析后的字符串
return soure;
}
#endregion
![](/Images/OutliningIndicators/ContractedSubBlock.gif) 读取报表返回的值#region 读取报表返回的值
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif) /**////<summary>
/// 读取报表返回的值(递归)
///</summary>
///<param name="c"></param>
private void GetReturnValue(Control c)
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif) {
HtmlContainerControl cc = c as HtmlContainerControl;
if(cc!=null &&( cc.TagName.ToLower() == "td" || cc.TagName.ToLower() == "span"))
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif) {
string s = cc.InnerHtml;//读取控件值
ReportParser rp = new ReportParser();
ArrayList list = rp.Parser(s);//获取匹配参数列表
for(int i = 0;i < list.Count;i ++)
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif) {
string eval = (string)list[i];
string setkey = rp.GetKey(eval,"set");//set关键字
//判断是否需要输入
if(setkey == null || setkey == "")continue;
object v = HttpContext.Current.Request["txt_" + setkey];
data.Add(setkey,v);
}
}
foreach(Control fc in c.Controls)//遍历子控件
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif) {
GetReturnValue(fc);
}
}
public void SaveReport()
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif) {
//读取报表数据
XmlNode xRoot = ReportElement.GetChildNode(doc,"doc");
XmlNode xData = ReportElement.GetChildNode(xRoot,"data");
data = new ReportData();
InitCanvas();
GetReturnValue(Canvas);
ReportData.SetReportData(xData,data,"53738880");
}
#endregion
}
新建立一个webform,读取报表的时候只要用
ReportDocument r = new ReportDocument(Server.MapPath("pp.xml"));
System.Web.UI.Control c = r.WriteReport();
Label1.Controls.Add(c);
将数据保存到数据库则调用
ReportDocument r = new ReportDocument(Server.MapPath("pp.xml"));
r.SaveReport();
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