SqlDataSource Custom SQL Statement Vs Stored Procedure Permission Problem

PLEASE PLEASE PLEASE......

I did not get a single response for the last 6 hours... And during this time I was searching and trying to understand the problem but I am really stuck. If this is the wrong forum to ask this question, please redirect me. Really begging for replies...[:'(]

If I use the custom SQL statements in SqlDataSource, the application runs fine within the development environment (VS2005) but errors out if I publish the web site and access outside of the environment. In order to find-out the problem, I made the following test:

I created a select statement in one SqlDataSource to fill-in a GridView. I used the exact same statement to create a stored procedure and used that SP in second SqlDataSource and I fill a second GridView. When I debug or run the application, both grids are filled OK and everything works fine. However, when I publish the web site and try to do same only the stored procedure works fine and when I try to fill the grid using the built-in SQL, the page gives error. The error mesage is as follows when I use the address 'localhost':


Server Error in '/' Application.


The SELECT permission was denied on the object 'Contacts', database 'Homer', schema 'dbo'.

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.Data.SqlClient.SqlException: The SELECT permission was denied on the object 'Contacts', database 'Homer', schema 'dbo'.

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:





[SqlException (0x80131904): The SELECT permission was denied on the object 'Contacts', database 'Homer', schema 'dbo'.]
System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection) +859322
.......da da da .......

If I access the page using the IP address the message chages to below but it is not the issue, I just give it if it helps to find the problem:


Server Error in '/' Application.


Runtime Error

Description: An application error occurred on the server. The current custom error settings for this application prevent the details of the application error from being viewed remotely (for security reasons). It could, however, be viewed by browsers running on the local server machine.

Details: To enable the details of this specific error message to be viewable on remote machines, please create a <customErrors> tag within a "web.config" configuration file located in the root directory of the current web application. This <customErrors> tag should then have its "mode" attribute set to "Off".
 

My SqlDataSource s are like this: <asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:HomerConnectionString %>"
SelectCommand="TestRemoteAccess" SelectCommandType="StoredProcedure">
<SelectParameters>
<asp:ControlParameter ControlID="TextBox1" Name="Param1" PropertyName="Text" Type="Int32" />
</SelectParameters>
</asp:SqlDataSource>
<asp:SqlDataSource ID="SqlDataSource2" runat="server" ConnectionString="<%$ ConnectionStrings:HomerConnectionString %>"
SelectCommand="SELECT FirstName, LastName, Business FROM Contacts WHERE (ContactID = @Param1)">
<SelectParameters>
<asp:ControlParameter ControlID="TextBox2" Name="Param1" PropertyName="Text" />
</SelectParameters>
</asp:SqlDataSource>


 

 Environment: SQL Server 2005, VS2005, Vista