<%@ Page language="c#" Codebehind="UseDropDown.aspx.cs" AutoEventWireup="false" Inherits="MsDataGrid.UseDropDown" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" ><HTML> <HEAD> <title>DataGrid使用举例</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"> <FONT face="宋体"> <asp:DataGrid id="dgShow" style="Z-INDEX: 101; LEFT: 31px; POSITION: absolute; TOP: 93px" runat="server" Width="842px" Height="172px" BorderColor="Tan" BorderWidth="1px" BackColor="LightGoldenrodYellow" CellPadding="2" GridLines="None" ForeColor="Black" PageSize="1" AutoGenerateColumns="False"> <SelectedItemStyle ForeColor="GhostWhite" BackColor="DarkSlateBlue"></SelectedItemStyle> <AlternatingItemStyle BackColor="PaleGoldenrod"></AlternatingItemStyle> <HeaderStyle Font-Bold="True" BackColor="Tan"></HeaderStyle> <FooterStyle BackColor="Tan"></FooterStyle> <Columns> <asp:BoundColumn DataField="StudentID" ReadOnly="True" HeaderText="学生ID"></asp:BoundColumn> <asp:BoundColumn DataField="StudentName" HeaderText="学生姓名"></asp:BoundColumn> <asp:BoundColumn DataField="StudentPass" HeaderText="密码"></asp:BoundColumn> <asp:BoundColumn DataField="Sex" HeaderText="性别"></asp:BoundColumn> <asp:BoundColumn DataField="Birthday" HeaderText="生日" DataFormatString="{0:yyyy-M-d}"></asp:BoundColumn> <asp:BoundColumn DataField="Email" HeaderText="邮件地址"></asp:BoundColumn> <asp:TemplateColumn HeaderText="性别模板列"> <ItemTemplate> <asp:DropDownList id="ddlSexI" runat="server" Enabled="False"> <asp:ListItem Value="1">男</asp:ListItem> <asp:ListItem Value="0">女</asp:ListItem> </asp:DropDownList> </ItemTemplate> <EditItemTemplate> <asp:DropDownList id="ddlSexE" runat="server"> <asp:ListItem Value="1">男</asp:ListItem> <asp:ListItem Value="0">女</asp:ListItem> </asp:DropDownList> </EditItemTemplate> </asp:TemplateColumn> <asp:ButtonColumn Text="选择" HeaderText="选择" CommandName="Select"></asp:ButtonColumn> <asp:EditCommandColumn ButtonType="LinkButton" UpdateText="更新" HeaderText="操作" CancelText="取消" EditText="编辑"></asp:EditCommandColumn> <asp:ButtonColumn Text="删除" HeaderText="删除" CommandName="Delete"></asp:ButtonColumn> </Columns> <PagerStyle HorizontalAlign="Center" ForeColor="DarkSlateBlue" BackColor="PaleGoldenrod"></PagerStyle> </asp:DataGrid></FONT> </form> </body></HTML>后台代码：cs
using System;using System.Collections;using System.ComponentModel;using System.Data;using System.Drawing;using System.Web;using System.Web.SessionState;using System.Web.UI;using System.Web.UI.WebControls;using System.Web.UI.HtmlControls;using System.Data.SqlClient;namespace MsDataGrid{
/// <summary>
/// WebForm1 的摘要说明。
/// </summary> public class UseDropDown : System.Web.UI.Page { protected System.Web.UI.WebControls.DataGrid dgShow; private void Page_Load(object sender, System.EventArgs e) { // 在此处放置用户代码以初始化页面 if(!IsPostBack) BindData(); } private void BindData() { string strCon = System.Configuration.ConfigurationSettings.AppSettings["DSN"]; SqlConnection con = new SqlConnection(strCon); SqlDataAdapter da = new SqlDataAdapter("Select * from tbStudentinfo",con); DataSet ds = new DataSet(); da.Fill(ds,"studentinfo"); dgShow.DataSource = ds.Tables["studentinfo"].DefaultView; dgShow.DataBind(); foreach(DataGridItem dgi in dgShow.Items) { //以下绑定非编辑状态下拉列表 DropDownList ddI = (DropDownList)dgi.FindControl("ddlSexI"); if(ddI!=null) { bool bSex = (bool)ds.Tables["studentinfo"].Rows[dgi.ItemIndex]["Sex"]; if(bSex) ddI.SelectedIndex = 0; else ddI.SelectedIndex = 1; } //以下绑定编辑状态下拉列表 DropDownList ddE = (DropDownList)dgi.FindControl("ddlSexE"); if(ddE!=null) { bool bSex = (bool)ds.Tables["studentinfo"].Rows[dgi.ItemIndex]["Sex"]; if(bSex) ddE.SelectedIndex = 0; else ddE.SelectedIndex = 1; } } }
Web Form Designer generated code private void dgShow_EditCommand(object source, System.Web.UI.WebControls.DataGridCommandEventArgs e) { dgShow.EditItemIndex = e.Item.ItemIndex; BindData(); } private void dgShow_CancelCommand(object source, System.Web.UI.WebControls.DataGridCommandEventArgs e) { dgShow.EditItemIndex = -1; BindData(); } private void dgShow_PageIndexChanged(object source, System.Web.UI.WebControls.DataGridPageChangedEventArgs e) { dgShow.CurrentPageIndex = e.NewPageIndex; BindData(); } private void dgShow_DeleteCommand(object source, System.Web.UI.WebControls.DataGridCommandEventArgs e) { if(dgShow.Items.Count==1) { if(dgShow.CurrentPageIndex!=0) dgShow.CurrentPageIndex = dgShow.CurrentPageIndex-1; } string strSql = "delete from tbStudentinfo where studentid="+e.Item.Cells[0].Text+""; ExecuteSql(strSql); BindData(); } //////////////////////////////////////////////////////////// //说明：执行制定SQL语句///////////////////////////////////// /////////////////////////////////////////////////////////// private void ExecuteSql(string strSql) { try { string strconn = System.Configuration.ConfigurationSettings.AppSettings["DSN"];//从Web.config中读取 SqlConnection conn =new SqlConnection(strconn); SqlCommand com = new SqlCommand(strSql,conn); conn.Open(); com.ExecuteNonQuery(); conn.Close(); } catch(Exception e) { Response.Write("<script language = 'javascript'>alert('"+e.Message+"');</script>") ; } } private void dgShow_UpdateCommand(object source, System.Web.UI.WebControls.DataGridCommandEventArgs e) { string strStudentID = e.Item.Cells[0].Text;//处于非编辑状态 string strName = ((TextBox)(e.Item.Cells[1].Controls[0])).Text;//处于编辑状态 string strPass =((TextBox)(e.Item.Cells[2].Controls[0])).Text; string strSex = ((DropDownList)(e.Item.FindControl("ddlSexE"))).SelectedItem.Value; string strBirthday =((TextBox)(e.Item.Cells[4].Controls[0])).Text; string strEmail =((TextBox)(e.Item.Cells[5].Controls[0])).Text; string strSql = "update tbStudentinfo set StudentName='"+strName+"',StudentPass='"+strPass+"'"; strSql +=",Sex="+strSex+",Birthday='"+strBirthday+"',Email='"+strEmail+"' where studentid="+strStudentID+""; ExecuteSql(strSql); dgShow.EditItemIndex = -1; BindData(); } }
}