DataSource Controls :: Is It Possible To Use A Property Of An Object Instance Property For Object Data Source
May 3, 2010
Traditionally with an Object Data Source, the wired up class will have its public properties available for binding (i.e. Gridview columns, etc.) which works well. But what if one of my wired up business objects has a property that is an object itself; can I drill down to a property on that object property and still use it?
So in additiona to the traditional:MyBusniessObject.OrderID...I want to use:MyBusniessObject.Customer.NameID
Your 1st response might be to just wire up the 'Customer' class, but I need properties both on 'MyBusinessObject'and 'Customer'. I do not think this can be done, as the ODS will not display properties on an object instance property. I have tried manually typing in the drilled down value as well, but that wasn't a success either.
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<asp:sqldatasource id="SqlDataSource1" runat="server" connectionstring="<%$ ConnectionStrings:DBConnectionString %>" xmlns:asp="#unknown"> SelectCommand="SELECT * FROM getStoreCustomers (@customerID,@week,@day)"
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Oct 27, 2010
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[Code]....
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Apr 20, 2010
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[Code]....
and heres my aspx page:
[Code]....
Stored procedure:
[Code]....
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Jul 27, 2010
[code]....
i'm having trouble because when it has no return value i get the error
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Jan 24, 2010
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[Code]....
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May 26, 2010
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erver Error in '/WebSite4' Application.
Object reference not set to an instance of an object.
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.NullReferenceException: Object reference not set to an instance of an object.
Source Error:
[Code]....
Line 233:Line 234: Repeater1.DataSource = PagedResultsLine 235: Repeater1.DataBind()Line 236: doPaging()Line 237: End Sub
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[Code]....
[Code]....
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[code]....
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aspx :
[Code]....
Code Behind :
[Code]....
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Imports System.Data.SqlClient
Imports System.Data
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Inherits System.Web.UI.Page
Function constr() As String
Dim i As New IO.StreamReader(Server.MapPath("constr.config"))
[Code] ...
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[Code]....
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[Code]....
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[Code]....
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[Code]....
[Code]....
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why I get this error:
Object reference not set to an instance of an object.
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[Code]....
[Code]....
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Object reference not set to an instance of an object.
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