asp.net 删除问题??
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 person.datalist
{
/// <summary>
/// editnews 的摘要说明。
/// </summary>
public class editnews : System.Web.UI.Page
{
protected System.Web.UI.WebControls.DataGrid dgnew;
private void Page_Load(object sender, System.EventArgs e)
{
if(!this.IsPostBack)
{
this.datanew();
}
Server.Execute("judge.aspx");
// 在此处放置用户代码以初始化页
}
private void datanew()
{
SqlConnection con=DB.createConn();
SqlDataAdapter sda=new SqlDataAdapter("select * from news",con);
DataSet ds=new DataSet();
sda.Fill(ds,"news");
this.dgnew.DataKeyField="id";
this.dgnew.DataSource=ds.Tables["news"];
this.dgnew.DataBind();
}
#region Web 窗体设计器生成的代码
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.dgnew.PageIndexChanged += new System.Web.UI.WebControls.DataGridPageChangedEventHandler(this.dgnew_PageIndexChanged);
this.dgnew.DeleteCommand += new System.Web.UI.WebControls.DataGridCommandEventHandler(this.dgnew_DeleteCommand);
this.dgnew.ItemDataBound += new System.Web.UI.WebControls.DataGridItemEventHandler(this.dgnew_ItemDataBound);
this.Load += new System.EventHandler(this.Page_Load);
}
#endregion
private void dgnew_PageIndexChanged(object source, System.Web.UI.WebControls.DataGridPageChangedEventArgs e)
{
this.dgnew.CurrentPageIndex=e.NewPageIndex;
this.datanew();
}
private void dgnew_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
{
if(e.Item.ItemType==ListItemType.Item||e.Item.ItemType==ListItemType.AlternatingItem)
{
e.Item.Attributes.Add("onmouseover","c=this.style.backgroundColor;this.style.backgroundColor='#eeeeff'");
e.Item.Attributes.Add("onmouseout","this.style.backgroundColor=c;");
// e.Item.Attributes.Add("onclick","return confirm('真得要删除吗?')");
((LinkButton)(e.Item.Cells[2].Controls[0])).Attributes.Add("onclick","return confirm('真得要删除吗?')");
}
}
private void dgnew_DeleteCommand(object source, System.Web.UI.WebControls.DataGridCommandEventArgs e)
{
string id=this.dgnew.DataKeys[e.Item.ItemIndex].ToString();
// Response.Write(id);
// Response.End();
SqlConnection con=DB.createConn();
SqlCommand cmd=new SqlCommand("delete from news where id='"+id+"'",con);
con.Open();
cmd.ExecuteNonQuery();
this.datanew();
}
}
}
上面是我用dbgrid 开始时是可以删除的, 最近不知道怎么删除不了,
没反应该的, 不知道那里出错