DataGrid 完全攻略之一（在编辑状态下改变控件的显示大小）

<% @ Page language="c#" Codebehind="AdjustWidth.aspx.cs" AutoEventWireup="false" Inherits="MsDataGrid.AdjustWidth"  %>
<! 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:RadioButton  id =RadioButton2  runat ="server"  Text ="男"  Checked ='<%#  DataBinder.Eval(Container, "DataItem.Sex") % > ' Enabled="False">
                                 </ asp:RadioButton >
                                 < asp:RadioButton  id =RadioButton1  runat ="server"  Text ="女"  Checked ='<%#  !(bool)DataBinder.Eval(Container, "DataItem.Sex") % > ' Enabled="False">
                                 </ asp:RadioButton >
                             </ ItemTemplate >
                             < EditItemTemplate >
                                 < asp:RadioButton  id =cbSex  runat ="server"  Text ="男"  Checked ='<%#  DataBinder.Eval(Container, "DataItem.Sex") % > ' GroupName="Sex">
                                 </ asp:RadioButton >
                                 < asp:RadioButton  id =RadioButton4  runat ="server"  Text ="女"  Checked ='<%#  !(bool)DataBinder.Eval(Container, "DataItem.Sex") % > ' GroupName="Sex">
                                 </ asp:RadioButton >
                             </ 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 >
                         < asp:HyperLinkColumn  Text ="点击查看"  DataNavigateUrlField ="StudentID"  DataNavigateUrlFormatString ="Show.aspx?ID={0}"  DataTextField ="StudentName"  HeaderText ="详细信息" ></ asp:HyperLinkColumn >
                     </ Columns >
                     < PagerStyle  HorizontalAlign ="Center"  ForeColor ="DarkSlateBlue"  BackColor ="PaleGoldenrod" ></ PagerStyle >
                 </ asp:DataGrid ></ FONT >
         </ form >
     </ body >
</ HTML >

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 AdjustWidth : 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();
            dgShow.Columns[0].Visible = false;
            
        }
        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 = ((CheckBox)(e.Item.Cells[3].FindControl("cbSex"))).Checked?"1":"0";
            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();

        }

        private void dgShow_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
        {
            if (e.Item.ItemType == ListItemType.EditItem) 
            {
                for (int i=0;i<e.Item.Cells.Count;i++)
                {
                    if(e.Item.Cells[i].Controls.Count>0)
                    {
                        try
                        {
                            TextBox t =(TextBox)e.Item.Cells[i].Controls[0];
                            t.Width=130;
                        }
                        catch(Exception ee)
                        {
                        }
                    }
                }
            }
        }

    }
}

本文转自高海东博客园博客，原文链接：http://www.cnblogs.com/ghd258/archive/2005/10/12/253175.html，如需转载请自行联系原作者