ASP.NET中GridView如何实现删除RowDeleting后台代码。主键UserId server=.;uid=sa;pwd=;database=ASPNET配

基于微软给的数据库中的vw_aspnet_Users表，用GridView进行删改。后台代码有点不太懂，请高手指点

N久没来回答了,今天上了知道看了看,发现你的问题还没解决,给你写了点代码.






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SelectCommand="select id,name,pwd from usertab" DeleteCommand="delete from usertab where id = @id"
UpdateCommand="update usertab set name = @name,pwd = @pwd where id = @id ">












这个就是SqlDataSource和GridView的配合,以前回答的是纯代码,2个方法都教你了啊.


-------------------------------------------
using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;

public partial class _Default : System.Web.UI.Page
{
SqlConnection sqlcon;
SqlCommand sqlcom;
string strCon = "Data Source=(local);Database=数据库名;Uid=帐号;Pwd=密码";
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
bind();
}
}
protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)
{
GridView1.EditIndex = e.NewEditIndex;
bind();
}

//删除
protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
string sqlstr = "delete from 表 where id='" + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";
sqlcon = new SqlConnection(strCon);
sqlcom = new SqlCommand(sqlstr,sqlcon);
sqlcon.Open();
sqlcom.ExecuteNonQuery();
sqlcon.Close();
bind();
}

//更新
protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
sqlcon = new SqlConnection(strCon);
string sqlstr = "update 表 set 字段1='"
+ ((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim() + "',字段2='"
+ ((TextBox)(GridView1.Rows[e.RowIndex].Cells[2].Controls[0])).Text.ToString().Trim() + "',字段3='"
+ ((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim() + "' where id='"
+ GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";
sqlcom=new SqlCommand(sqlstr,sqlcon);
sqlcon.Open();
sqlcom.ExecuteNonQuery();
sqlcon.Close();
GridView1.EditIndex = -1;
bind();
}

//取消
protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
{
GridView1.EditIndex = -1;
bind();
}

//绑定
public void bind()
{
string sqlstr = "select * from 表";
sqlcon = new SqlConnection(strCon);
SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);
DataSet myds = new DataSet();
sqlcon.Open();
myda.Fill(myds, "表");
GridView1.DataSource = myds;
GridView1.DataKeyNames = new string[] ;//主键
GridView1.DataBind();
sqlcon.Close();
}
}

前台主要代码：
... ...
ForeColor="#333333" GridLines="None" OnRowDeleting="GridView1_RowDeleting"

OnRowEditing="GridView1_RowEditing"
OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit">















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string strcon = "server=sql server 服务器名称;database=数据库名称;uid=sa;pwd=******"; SqlConnection sqlcon= new SqlConnection(strcon); string sqlstr = "delete from vw_aspnet_Users where id='" + GridView1.DataKeys[e.RowIndex].Value+ "'"; SqlCommand sqlcom = new SqlCommand(sqlstr, sqlcon); sqlcon.Open(); sqlcom.ExecuteNonQuery(); sqlcon.Close();

protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e) { string strcon = "server=sql server 服务器名称;database=数据库名称;uid=sa;pwd=******"; SqlConnection sqlcon= new SqlConnection(strcon); string sqlstr = "delete from vw_aspnet_Users where id='" + GridView1.DataKeys[e.RowIndex].Value+ "'"; SqlCommand sqlcom = new SqlCommand(sqlstr, sqlcon); sqlcon.Open(); sqlcom.ExecuteNonQuery(); sqlcon.Close(); }

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