insert into t_test ( 字段 )
select 字段
FROM OpenDataSource( 'Microsoft.Jet.OLEDB.4.0',
'Data Source="C:\test.xls";
User ID=Admin;Password=;
Extended properties=Excel 8.0')...[sheet1$]
2.从数据库直接写入excel
exec master..xp_cmdshell ' bcp "SELECT au_fname, au_lname FROM pubs..authors ORDER BY au_lname" queryout c:\test.xls -c -S"soa" -U"sa" -P"sa" ' 注意参数的大小写,另外这种方法写入数据
的时候没有标题
3.从DataTable导出到excel
StringWriter stringWriter = new StringWriter();
HtmlTextWriter htmlWriter = new HtmlTextWriter( stringWriter );
DataGrid excel = new DataGrid();
System.Web.UI.WebControls.TableItemStyle AlternatingStyle = new TableItemStyle();
System.Web.UI.WebControls.TableItemStyle headerStyle = new TableItemStyle();
System.Web.UI.WebControls.TableItemStyle itemStyle = new TableItemStyle();
AlternatingStyle.BackColor = System.Drawing.Color.LightGray;
headerStyle.BackColor =System.Drawing.Color.LightGray;
headerStyle.Font.Bold = true;
headerStyle.HorizontalAlign = System.Web.UI.WebControls.HorizontalAlign.Center;
itemStyle.HorizontalAlign = System.Web.UI.WebControls.HorizontalAlign.Center;;
excel.AlternatingItemStyle.MergeWith(AlternatingStyle);
excel.HeaderStyle.MergeWith(headerStyle);
excel.ItemStyle.MergeWith(itemStyle);
excel.GridLines = GridLines.Both;
excel.HeaderStyle.Font.Bold = true;
excel.DataSource = dt.DefaultView; //输出DataTable的内容
excel.DataBind();
excel.RenderControl(htmlWriter);
string filestr = "d:\\data\\"+filePath; //filePath是文件的路径
int pos = filestr.LastIndexOf( "\\");
string file = filestr.Substring(0,pos);
if( !Directory.Exists( file ) )
{
Directory.CreateDirectory(file);
}
System.IO.StreamWriter sw = new StreamWriter(filestr);
sw.Write(stringWriter.ToString());
sw.Close();
4 将DataGrid中的数据导入Excel中,并显示Excel应用程序
/// <summary>
/// 将DataGrid中的数据导入Excel中,并显示Excel应用程序,
/// 注意调用该方法必须有安装Excel 2000应用程序,并且假定DataGrid中绑定的是一DataSet
/// </summary>
/// <param name="grid"></param>
/// <param name="ReportTitle"></param>
public static void ExportDataGridToExcel(DataGrid grid, string ReportTitle)
{
DataTable myTable = ((DataSet) grid.DataSource).Tables[0];
try
{
Excel.Application xlApp = new Excel.ApplicationClass();
int rowIndex;
int colIndex;
rowIndex = 2;
colIndex = 0;
Excel.Workbook xlBook = xlApp.Workbooks.Add(true);
if (grid.TableStyles.Count > 0)
{
Excel.Range range = xlApp.get_Range(xlApp.Cells[1, 1], xlApp.Cells[1, grid.TableStyles[0].GridColumnStyles.Count]);
range.MergeCells = true;
xlApp.ActiveCell.FormulaR1C1 = ReportTitle;
xlApp.ActiveCell.Font.Size = 18;
xlApp.ActiveCell.Font.Bold = true;
foreach (DataGridColumnStyle colu in grid.TableStyles[0].GridColumnStyles)
{
colIndex = colIndex + 1;
xlApp.Cells[2, colIndex] = colu.HeaderText;
}
//得到的表所有行,赋值给单元格
for (int row = 0; row < myTable.Rows.Count; row++)
{
rowIndex = rowIndex + 1;
colIndex = 0;
for (int col = 0; col < grid.TableStyles[0].GridColumnStyles.Count; col++)
{
colIndex = colIndex + 1;
xlApp.Cells[rowIndex, colIndex] = grid[row, col].ToString();
}
}
}
else
{
Excel.Range range = xlApp.get_Range(xlApp.Cells[1, 1], xlApp.Cells[1, myTable.Columns.Count]);
range.MergeCells = true;
xlApp.ActiveCell.FormulaR1C1 = ReportTitle;
xlApp.ActiveCell.Font.Size = 18;
xlApp.ActiveCell.Font.Bold = true;
//将表中的栏位名称填到Excel的第一行
foreach (DataColumn Col in myTable.Columns)
{
colIndex = colIndex + 1;
xlApp.Cells[2, colIndex] = Col.ColumnName;
}
//得到的表所有行,赋值给单元格
for (int row = 0; row < myTable.Rows.Count; row++)
{
rowIndex = rowIndex + 1;
colIndex = 0;
for (int col = 0; col < myTable.Columns.Count; col++)
{
colIndex = colIndex + 1;
xlApp.Cells[rowIndex, colIndex] = grid[row, col].ToString();
}
}
}
xlApp.get_Range(xlApp.Cells[2, 1], xlApp.Cells[2, colIndex]).Font.Bold = true;
xlApp.get_Range(xlApp.Cells[2, 1], xlApp.Cells[rowIndex, colIndex]).Borders.LineStyle = 1;
xlApp.Cells.EntireColumn.AutoFit();
xlApp.Cells.VerticalAlignment = Excel.Constants.xlCenter;
xlApp.Cells.HorizontalAlignment = Excel.Constants.xlCenter;
xlApp.Visible = true;
}
catch (Exception e)
{
throw e;
}
}