Forms Data Controls :: ObjectDataScource Not Working / ObjectDataSource1' Could Not Find A Non-generic Method?
Jan 8, 2010
Most likely the later, I think. In my page I have a GridView, DatailsView, and the ODS. None of my commands work. For the Udate command I get a an error "ObjectDataSource 'ObjectDataSource1' could not find a non-generic method 'UpdateVirtual' that has parameters: name, notes, active, original_ident." For the Delete command I get "ObjectDataSource 'ObjectDataSource1' could not find a non-generic method 'DeleteVirtual' that has parameters: ident, original_ident." Yet the Insert command in the DetailsView works fine. Originally I've copied a file that performs virtually identical task, the only difference is a different database and the Select command. I had the Delete command working for for while but that one too broke. Can someone point out what I'm doing wring?
Below is the code:
The *.aspx file:
<%@ Page Language="C#" MasterPageFile="~/MasterPage.master" AutoEventWireup="true"
CodeFile="Maintain_Virtual_Users.aspx.cs" Inherits="Maintain_Virtual_Users" Title="Maintain Accounts" StylesheetTheme="Master" %>
<asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">
<h2>
Maintain Virtual Users</h2>
<p>
<asp:GridView ID="GridView1" runat="server" AllowPaging="True" AllowSorting="True"
AutoGenerateColumns="False" DataKeyNames="ident"
DataSourceID="ObjectDataSource1" AutoGenerateDeleteButton="false"
AutoGenerateEditButton="False">
<Columns>
<asp:BoundField DataField="ident" HeaderText="ident" SortExpression="ident"
ReadOnly="True" />
<asp:BoundField DataField="name" HeaderText="name" SortExpression="name" />
<asp:BoundField DataField="notes" HeaderText="notes" SortExpression="notes" />
<asp:CheckBoxField DataField="active" HeaderText="active"
SortExpression="active" />
<asp:CommandField ShowDeleteButton="True" ShowEditButton="True" />
</Columns>
</asp:GridView>
</p>
<p>
<asp:DetailsView ID="DetailsView1" runat="server" AutoGenerateRows="False" DataKeyNames="ident"
DataSourceID="ObjectDataSource1" Height="50px" Width="393px"
DefaultMode="Insert" AutoGenerateInsertButton="False">
<Fields>
<asp:BoundField DataField="ident" HeaderText="ident" ControlStyle-Width="250"
SortExpression="ident" ReadOnly="True" >
</asp:BoundField>
<asp:BoundField DataField="name" HeaderText="name" SortExpression="name" />
<asp:BoundField DataField="notes" HeaderText="notes" SortExpression="notes" />
<asp:CheckBoxField DataField="active" HeaderText="active"
SortExpression="active" />
<asp:CommandField ShowInsertButton="True" />
</Fields>
</asp:DetailsView>
<asp:ObjectDataSource ID="ObjectDataSource1" runat="server"
DeleteMethod="DeleteVirtual" InsertMethod="AddVirtual"
OldValuesParameterFormatString="original_{0}" SelectMethod="GetVirtual"
TypeName="VirtualPeopleBLL" UpdateMethod="UpdateVirtual">
<DeleteParameters>
<asp:Parameter Name="ident" Type="Int32" />
</DeleteParameters>
<UpdateParameters>
<asp:Parameter Name="ident" Type="Int32" />
<asp:Parameter Name="name" Type="String" />
<asp:Parameter Name="notes" Type="String" />
<asp:Parameter Name="active" Type="Boolean" />
</UpdateParameters>
<InsertParameters>
<asp:Parameter Name="ident" Type="Int32" />
<asp:Parameter Name="name" Type="String" />
<asp:Parameter Name="notes" Type="String" />
<asp:Parameter Name="active" Type="Boolean" />
</InsertParameters>
</asp:ObjectDataSource>
</p>
</asp:Content>
the .BLL:
using System;
using System.Web;
using System.Web.Services;
using System.Web.Services.Protocols;
using System.ComponentModel;
using dsVirtualPeopleTableAdapters;
[System.ComponentModel.DataObject]
public class VirtualPeopleBLL
{
private VirtualPeopleTableAdapter _virtualPeopleAdapter = null;
protected VirtualPeopleTableAdapter Adapter
{
get
{
if (_virtualPeopleAdapter == null)
_virtualPeopleAdapter = new VirtualPeopleTableAdapter();
return _virtualPeopleAdapter;
}
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Code:
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Error:
ObjectDataSource 'ProductsOptimisticConcurrencyDataSource' could not find a non-generic method 'DeleteProduct' that has parameters: ID, UserId.
Description: An unhandled exception occurred during the execution of the current web request. review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.InvalidOperationException: ObjectDataSource 'ProductsOptimisticConcurrencyDataSource' could not find a non-generic method 'DeleteProduct' that has parameters: ID, UserId.
Source Error:
[Code]....
Stack Trace:
[Code]....
[InvalidOperationException: ObjectDataSource 'ProductsOptimisticConcurrencyDataSource' could not find a non-generic method 'DeleteProduct' that has parameters: ID, UserId.]
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