Question

Why am I getting this error when I bind a web method

Asked by: gggoddard

Hi;
I am trying to bind a gridview to a web method like so :
see code part 1:

and I get this error :

Both DataSource and DataSourceID are defined on 'GridView1'.  Remove one definition. 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.InvalidOperationException: Both DataSource and DataSourceID are defined on 'GridView1'.  Remove one definition.

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:

[InvalidOperationException: Both DataSource and DataSourceID are defined on 'GridView1'.  Remove one definition.]
   System.Web.UI.WebControls.DataBoundControl.ConnectToDataSourceView() +8554773
   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

I am binding to the gridview at run time through a web service proxy ?

Thanks

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Asked On
2009-11-03 at 18:19:07ID24869590
Topics

Programming for ASP.NET

,

.NET Framework 2.x

,

.NET

,

Web Languages/Standards

Participating Experts
5
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Answers

 

by: DaTribePosted on 2009-11-03 at 23:33:09ID: 25737158

From the design view check the GridView Properties and remove the value in The DataSourceID

 

by: trideepPosted on 2009-11-04 at 01:16:05ID: 25737575

Just Add
GridView1.DataSourceID =Nothing

Before
GridView1.DataSource = ds  

 

by: dhansmaniPosted on 2009-11-04 at 04:50:19ID: 25738741

remove DatasourceID in GridView Design

 

by: gggoddardPosted on 2009-11-04 at 05:37:29ID: 25739110

Hi;

Thanks for your suggestions !

I am binding to the datasource at run time not at design time.

So both properties on the gridview design,  datasource and datasourceID, are blank.

I tried setting the datasourceID to blank  in my code behind and that didn't work.

Should I try to look at the microsoft source code for the web page ?

The problem might be buried in the 10K plus lines of code.

Man, this is a tuff nut to crack !

 

by: kumar754Posted on 2009-11-05 at 11:38:41ID: 25753073

paste your GridView code from aspx file here... your gridview attributes needs to be edited.

as you said:

"So both properties on the gridview design,  datasource and datasourceID, are blank."

just remove both the attributes from your Gridview tag.

 

by: gggoddardPosted on 2009-11-05 at 12:11:18ID: 25753419

Hi;

Here is the web page source as per your request.

Also I have attached the error message as it occured when I hit the gridview1.databind line.

Thanks


<%@ Page Language="VB" AutoEventWireup="false" CodeFile="Default3.aspx.vb" Inherits="Default3" %>
<!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>Untitled Page</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:GridView ID="GridView1" runat="server">
</asp:GridView>
&nbsp;
</div>
</form>
</body>
</html>

 

by: kumar754Posted on 2009-11-05 at 13:06:49ID: 25754026

1st check if you are getting any results from your code

ws.RetMgrData(1, 1074, 1, 3) ???

 

by: gggoddardPosted on 2009-11-05 at 13:14:16ID: 25754108

Hi Kumar;

I am getting the error message I sent in my last post did you or can you see the bit map image ?.

I can execute the Web Service (browse the ASMX itself and I get the dataset returned.

Thanks

 

by: gggoddardPosted on 2009-11-05 at 17:52:19ID: 25756058

Hi;

Another clue ?

A coworker suggested that I quote the parameters that I am passing to my web method.

When I did this on an app which is located in the web services directory it returned the dataset no problems.

But when I tried calling the  web method from an extermal app using the quoted parameters I still got the same error about choosing the datasource or datasourceID  error.

Why did it work locally ?

Thanks

 

by: gggoddardPosted on 2009-11-06 at 12:09:47ID: 25762606

Hi;

I am still trying to get a handle on my problem.

I tried running the web service on it's server from IE.

We are using IE 6.0.

When I invoke the web method a dataset is not returned.

I am able to get one returned from the local web server.

Is there a setting in IIS that could be preventing this ?

Thanks

 

by: gggoddardPosted on 2009-11-06 at 13:52:14ID: 25763398

Hi;

It's looking like an issue with the User Id and Password.

Our DBA is looking into that.

Thanks !

 

 

by: TheLearnedOnePosted on 2009-11-07 at 09:03:08ID: 25767077

What do you still need help with?

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