DataGrid学习七[2]

[入库:2006年2月23日] [更新:2007年3月24日]

本文简介:

] cols = {"LName","FName","Phone","Address","City","Zip"};
        for (int i=0; i<6; i++)
        {
            String colvalue = ((TextBox)E.Item.FindControl("edit_" +
cols[i])).Text;
            // 检查在所需字段中是否有空值
            if (i<3 && colvalue == "")
            {
                Message.InnerHtml = "错误:“姓名”或“电话”不允许使用空值";

                Message.Style["color"] = "red";
                return;
            }
            myCommand.Parameters["@" + cols[i]].Value = colvalue;
        }



        myCommand.Parameters["@State"].Value =
((DropDownList)E.Item.FindControl("edit_State")).SelectedItem.ToString();



        if (((CheckBox)E.Item.FindControl("edit_Contract")).Checked == true)
            myCommand.Parameters["@Contract"].Value = "1";
        else
            myCommand.Parameters["@Contract"].Value = "0";
        myCommand.Connection.Open();
        try
        {
            myCommand.ExecuteNonQuery();
            Message.InnerHtml = "<b>已更新记录</b><br>" + updateCmd;
            MyDataGrid.EditItemIndex = -1;
        }
        catch (SqlException e)
        {
            if (e.Number == 2627)
                Message.InnerHtml = "错误:已存在具有相同主键的记录";
            else
                Message.InnerHtml = "错误:未能更新记录,请确保正确填写了字段
";
            Message.Style["color"] = "red";
        }
        myCommand.Connection.Close();
        BindGrid();
    }



    public void BindGrid()
    {
        SqlDataAdapter myCommand = new SqlDataAdapter("select * from
Authors", myConnection);
        DataSet ds = new DataSet();
        myCommand.Fill(ds, "Authors");
        MyDataGrid.DataSource=ds.Tables["Authors"].DefaultView;
        MyDataGrid.DataBind();
    }



</script>



<body style="font: 10.5pt 宋体">
  <form runat="server">
    <h3><font face="宋体">更新具有模板列的数据行</font></h3>
    <span id="Message" EnableViewState="false" style="font: arial 11pt;"
runat="server"/><p>
    <ASP:DataGrid id="MyDataGrid" runat="server"
      Width="800"
      BackColor="#ccccff"
      BorderColor="black"
      ShowFooter="false"
      CellPadding=3
      CellSpacing="

本文关键:DataGrid学习七
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