要实现讲datagrid中的数据导为excel,必须引入microsoft的microsoft office webComponent(OWC),从vs.net中引入OWC后，就可以实现将datagrid导为excel.具体的方法如下：
以下是c#代码文件：
using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Data.SqlClient;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
namespace TestExeclFromDataGrid
{
/// <summary>
/// WebForm1 的摘要说明。
/// </summary>
public class WebForm1 : System.Web.UI.Page
{
protected System.Data.SqlClient.SqlDataAdapter sqlDataAdapter1;
protected System.Data.SqlClient.SqlCommand sqlSelectCommand1;
protected System.Data.SqlClient.SqlConnection sqlConnection1;
protected TestExeclFromDataGrid.dsProdcuts dsProdcuts1;
protected System.Web.UI.WebControls.Button Button1;
protected System.Web.UI.WebControls.Label Label1;
protected System.Web.UI.WebControls.DataGrid DataGrid1;
private void Page_Load(object sender, System.EventArgs e)
{
this.sqlDataAdapter1.Fill(this.dsProdcuts1);
if(!Page.IsPostBack)
{
this.DataGrid1.DataBind();
}// 在此处放置用户代码以初始化页面
}
public void DataGridToExcel()
{
string filesName=this.File1.Value;
OWC.SpreadsheetClass XlsSheet = new OWC.SpreadsheetClass();//实例化execl中的一张表
int tempColumn = 0;
foreach(System.Web.UI.WebControls.DataGridColumn Oitem in this.DataGrid1.Columns)//遍历整个datagrid的每一列,添加表头
{
XlsSheet.ActiveSheet.Cells[1,tempColumn+1]=Oitem.HeaderText;//添加表头
tempColumn++;
}
for(int i=1;i <= this.DataGrid1.Items.Count;i++)//遍历datagrid中的每一行，
{
for(int j=1;j<=this.DataGrid1.Items[i-1].Cells.Count;j++)
{
XlsSheet.ActiveSheet.Cells[i+1,j]=this.DataGrid1.Items[i-1].Cells[j-1].Text;//给刚才定义好的excel表没格负值
}
}
XlsSheet.ActiveSheet.Export(filesName,OWC.SheetExportActionEnum.ssExportActionNone);//execl表格的导出
}
#region Web Form Designer generated code
override protected void OnInit(EventArgs e)
{
//
// CODEGEN：该调用是 ASP.NET Web 窗体设计器所必需的。
//
InitializeComponent();
base.OnInit(e);
}
/// <summary>
/// 设计器支持所需的方法 - 不要使用代码编辑器修改
/// 此方法的内容。
/// </summary>
private void InitializeComponent()
{
this.sqlDataAdapter1 = new System.Data.SqlClient.SqlDataAdapter();
this.sqlSelectCommand1 = new System.Data.SqlClient.SqlCommand();
this.sqlConnection1 = new System.Data.SqlClient.SqlConnection();
this.dsProdcuts1 = new TestExeclFromDataGrid.dsProdcuts();
((System.ComponentModel.ISupportInitialize)(this.dsProdcuts1)).BeginInit();
this.Button1.Click += new System.EventHandler(this.Button1_Click);
//
// sqlDataAdapter1
//
this.sqlDataAdapter1.SelectCommand = this.sqlSelectCommand1;
this.sqlDataAdapter1.TableMappings.AddRange(new System.Data.Common.DataTableMapping[] {
new System.Data.Common.DataTableMapping("Table", "Products", new System.Data.Common.DataColumnMapping[] {
new System.Data.Common.DataColumnMapping("ProductID", "ProductID"),
new System.Data.Common.DataColumnMapping("ProductName", "ProductName"),
new System.Data.Common.DataColumnMapping("SupplierID", "SupplierID"),
new System.Data.Common.DataColumnMapping("CategoryID", "CategoryID"),
new System.Data.Common.DataColumnMapping("QuantityPerUnit", "QuantityPerUnit"),
new System.Data.Common.DataColumnMapping("UnitPrice", "UnitPrice"),
new System.Data.Common.DataColumnMapping("UnitsInStock", "UnitsInStock"),
new System.Data.Common.DataColumnMapping("UnitsOnOrder", "UnitsOnOrder"),
new System.Data.Common.DataColumnMapping("ReorderLevel", "ReorderLevel"),
new System.Data.Common.DataColumnMapping("Discontinued", "Discontinued")})});
//
// sqlSelectCommand1
//
this.sqlSelectCommand1.CommandText = "SELECT ProductID, ProductName, SupplierID, CategoryID, QuantityPerUnit, UnitPrice" +
", UnitsInStock, UnitsOnOrder, ReorderLevel, Discontinued FROM Products";
this.sqlSelectCommand1.Connection = this.sqlConnection1;
//
// sqlConnection1
//
this.sqlConnection1.ConnectionString = "data source=LVYIWEN;initial catalog=Northwind;integrated security=SSPI;persist se" +
"curity info=False;workstation id=LVYIWEN;packet size=4096";
//
// dsProdcuts1
//
this.dsProdcuts1.DataSetName = "dsProdcuts";
this.dsProdcuts1.Locale = new System.Globalization.CultureInfo("zh-CN");
this.dsProdcuts1.Namespace = "http://www.tempuri.org/dsProdcuts.xsd";
this.Load += new System.EventHandler(this.Page_Load);
((System.ComponentModel.ISupportInitialize)(this.dsProdcuts1)).EndInit();
}
#endregion
private void Button1_Click(object sender, System.EventArgs e)
{
DataGridToExcel();
}
}
}
一下是asp.net代码：
<%@ Page language="c#" Codebehind="WebForm1.aspx.cs" AutoEventWireup="false" Inherits="TestExeclFromDataGrid.WebForm1" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >
<HTML>
<HEAD>
<title>WebForm1</title>
<meta name="GENERATOR" Content="Microsoft Visual Studio 7.0">
<meta name="CODE_LANGUAGE" Content="C#">
<meta name="vs_defaultClientScript" content="JavaScript">
<meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5">
</HEAD>
<body MS_POSITIONING="GridLayout">
<form id="Form1" method="post" runat="server">
<asp:DataGrid id=DataGrid1 style="Z-INDEX: 101; LEFT: 88px; POSITION: absolute; TOP: 88px" runat="server" DataSource="<%# dsProdcuts1 %>" DataKeyField="CategoryID" DataMember="Products" AutoGenerateColumns="False">
<Columns>
<asp:BoundColumn DataField="ProductID" SortExpression="ProductID" HeaderText="ProductID"></asp:BoundColumn>
<asp:BoundColumn DataField="ProductName" SortExpression="ProductName" HeaderText="ProductName"></asp:BoundColumn>
<asp:BoundColumn DataField="SupplierID" SortExpression="SupplierID" HeaderText="SupplierID"></asp:BoundColumn>
<asp:BoundColumn DataField="CategoryID" SortExpression="CategoryID" HeaderText="CategoryID"></asp:BoundColumn>
<asp:BoundColumn DataField="UnitPrice" SortExpression="UnitPrice" HeaderText="UnitPrice"></asp:BoundColumn>
<asp:BoundColumn DataField="UnitsInStock" SortExpression="UnitsInStock" HeaderText="UnitsInStock"></asp:BoundColumn>
</Columns>
</asp:DataGrid>
<asp:Button id="Button1" style="Z-INDEX: 102; LEFT: 264px; POSITION: absolute; TOP: 280px" runat="server" Text="Button"></asp:Button>
<asp:Label id="Label1" style="Z-INDEX: 103; LEFT: 200px; POSITION: absolute; TOP: 32px" runat="server" Width="264px">将DataGrid的数据导为excel</asp:Label>
</form>
</body>
</HTML>