'GridView1'的DataSourceID必须是IDataSource类型的控件的ID

Question

'GridView1'的DataSourceID必须是IDataSource类型的控件的ID

Sma*_*EGA 2 .net c# asp.net ado.net gridview

为什么我收到以下错误？我在测试运行查询时可以看到数据!

Server Error in '/' Application.
The DataSourceID of 'GridView1' must be the ID of a control of type IDataSource.  A control with ID 'MyDataSource' could not be found.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.Web.HttpException: The DataSourceID of 'GridView1' must be the ID of a control of type IDataSource.  A control with ID 'MyDataSource' could not be found.

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:

[HttpException (0x80004005): The DataSourceID of 'GridView1' must be the ID of a control of type IDataSource.  A control with ID 'MyDataSource' could not be found.]
   System.Web.UI.WebControls.DataBoundControl.GetDataSource() +8556294
   System.Web.UI.WebControls.DataBoundControl.ConnectToDataSourceView() +37
   System.Web.UI.WebControls.DataBoundControl.OnLoad(EventArgs e) +19
   System.Web.UI.Control.LoadRecursive() +50
   System.Web.UI.Control.LoadRecursive() +141
   System.Web.UI.Control.LoadRecursive() +141
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +627


Version Information: Microsoft .NET Framework Version:2.0.50727.4927; ASP.NET Version:2.0.50727.4927

Run Code Online (Sandbox Code Playgroud)

以下是我的来源:

<%@ Page Language="vb" AutoEventWireup="false" CodeBehind="WebForm1.aspx.vb" Inherits="WebApplication1.WebForm1" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title></title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
      <asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>
    </div>
    <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" 
        DataSourceID="MyDataSource">
        <Columns>
            <asp:BoundField DataField="Colum1" HeaderText="Colum1" 
                SortExpression="Colum1" />
            <asp:BoundField DataField="Column2" HeaderText="Column2" 
                SortExpression="Column2" />
            <asp:BoundField DataField="Column3" HeaderText="Column3" 
                SortExpression="Column3" />
        </Columns>
    </asp:GridView>
    </form>
</body>
</html>

Run Code Online (Sandbox Code Playgroud)

Answer 1

Tho*_*mas 6

问题是表单上没有数据源控件,ID MyDataSource是DataSourceID属性的值GridView.

<asp:GridView ID="GridView1" runat="server" DataSourceID="MyDataSource"></asp:GridView>
<asp:SqlDataSource ID="MyDataSource" runat="server"></asp:SqlDataSource>

Run Code Online (Sandbox Code Playgroud)

在上面的例子中,我使用了一个SqlDataSource.但是,任何数据源控件都会执行,其ID值必须与DataSourceIDGridView属性中使用的值匹配.

另一件要检查的是标记是有效的.即,没有丢失尖括号,form标签外没有任何东西.内容页面上没有内容页面之外的主页面.等等

归档时间：	14 年，9 月前
查看次数：	24526 次
最近记录：	7 年，7 月前