我的网格视图：
<asp:GridView ID="MyGridView" runat="server" ShowFooter="true"
AutoGenerateColumns="False" Visible="True">
<Columns>
<asp:BoundField DataField="id" ItemStyle-HorizontalAlign="center"/>
<asp:BoundField DataField="fullName" />
<asp:TemplateField HeaderText="situation>">
<ItemTemplate>
<asp:DropDownList ID="dl_situation" runat="server">
</asp:DropDownList>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<ItemTemplate>
<asp:TextBox ID="tbNr" runat="server"></asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Data">
<ItemTemplate>
<asp:TextBox ID="tbDate" runat="server"></asp:TextBox>
<asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server"
ErrorMessage="*" ControlToValidate="tbDate">
</asp:RequiredFieldValidator>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
当我试图填充 GridView 它给了我错误
Uncaught Sys.WebForms.PageRequestManagerServerErrorException:
Sys.WebForms.PageRequestManagerServerErrorException: Exception has been
thrown by the target of an invocation. ScriptResource.axd:847
Error$create ScriptResource.axd:847
PageRequestManager$_createPageRequestManagerServerError ScriptResource.axd:765
PageRequestManager$_parseDelta ScriptResource.axd:1654
PageRequestManager$_onFormSubmitCompleted ScriptResource.axd:1415
$type.createDelegate ScriptResource.axd:628
$type.getHandler ScriptResource.axd:4338
raise ScriptResource.axd:7248
WebRequest$completed ScriptResource.axd:7252
Sys.Net.XMLHttpExecutor._onReadyStateChange
在页面上的资源中，此错误位于此处
$type.create = function Error$create(message, errorInfo) {
/// <summary locid="M:J#Error.create">Use this method to create a new error.
</summary>
/// <param name="message" type="String" optional="true" mayBeNull="true">
The error message.</param>
/// <param name="errorInfo" optional="true" mayBeNull="true">
A plain JavaScript object that contains extended information about the error.
The object should have a 'name' field that contains a string that identifies
the error and any additional fields that are necessary to fully describe
the error.</param>
/// <returns type="Error">An Error object.</returns>
var e = Function._validateParams(arguments, [
{name: "message", type: String, mayBeNull: true, optional: true},
{name: "errorInfo", mayBeNull: true, optional: true}
]);
if (e) throw e;
var err = new Error(message);
**Uncaught Sys.WebForms.PageRequestManagerServerErrorException:
Sys.WebForms.PageRequestManagerServerErrorException:
Exception has been thrown by the target of an invocation.**
err.message = message;
if (errorInfo) {
for (var v in errorInfo) {
err[v] = errorInfo[v];
}
}
err.popStackFrame();
return err;
}