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ASP.NET Gridview 中使用checkbox删除的2种方法实例分享

2024-07-10 12:45:13
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来源:转载
供稿:网友
方法一:
后台代码:
代码如下:
 protected void btn_delete_Click(object sender, EventArgs e)
    {
        for (int i = 0; i <this.GridView1.Rows.Count; i++)
        {
            int id = Convert.ToInt32(this.GridView1.DataKeys[i].Value);
            if ((this.GridView1.Rows[i].Cells[0].FindControl("CheckBox1") as CheckBox).Checked == true)
            {
                Delete(id);
                ClientScript.RegisterStartupScript(GetType(),"提示","<script>alert('删除成功!')</script>");
            }
        }
        this.GridView1.DataBind();
    }//删除
    private void Delete(int id)
    {
        using (SqlConnection conn = new SqlConnection(str))
        {
            conn.Open();
            SqlCommand comm = conn.CreateCommand();
            comm.CommandText = "delete from Notice_Msg where id=@id";
            comm.Parameters.Add(new SqlParameter("@id", id));
            comm.ExecuteNonQuery();
        }
    }

前台代码:
代码如下:
<asp:GridView ID="GridView1" runat="server" DataKeyNames="id">

另外还得添加一列,让其绑定的字段为id,并且把这一列的visable属性设为false
方法二:
后台:
代码如下:
 protected void btn_delete_Click(object sender, EventArgs e)
    {
        foreach (GridViewRow row in this.GridView1.Rows)
        {
            if (row.RowType == DataControlRowType.DataRow)
            {
                CheckBox ckb = row.Cells[2].FindControl("CheckBox1") as CheckBox;
                if (ckb.Checked)
                {
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