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.NET Forum / ASP.NET / General / March 2008ObjectDataSource Binding Before I Need it
I have a gridview that is using an objectdatasource that is calling a BLL class that wraps a Typed dataset. The objectdatasource has parameters that tied to page controls (textboxes, dropdowns ect) I had always thought that the Objectdatasource wouldn't bind while the gridview's visible property was set to false, but I'm experiencing timeouts when the page is initially loaded when the objectdatasource tries to bind without the necessary user input to filter down the results and before I make the gridview visible. Can anyone suggest a way to prevent the objectdatasource from binding untl the user has filled in the form? Thanks, Jason I doubt if the visibility is the issue, but you could easily test this by making it visible. >I have a gridview that is using an objectdatasource that is calling a > BLL class that wraps a Typed dataset. The objectdatasource has [quoted text clipped - 11 lines] > > Jason I'm not sure what you mean. I was saying that I tried to prevent the premature binding of the objectdatasource by making the gridview not visible. I was mistaken that would do the trick. So now I am trying to find another way to prevent the ods from binding before the form is filled out. Ahh, ok. What sort of timeouts, are these SQL timeouts ? Can you get an exception message ? where exactly is this failing. If its breaking at a particular line, you should be able to get more information > I'm not sure what you mean. I was saying that I tried to prevent the > premature binding of the objectdatasource by making the gridview not > visible. I was mistaken that would do the trick. So now I am trying > to find another way to prevent the ods from binding before the form is > filled out. > I have a gridview that is using an objectdatasource that is calling a > BLL class that wraps a Typed dataset. The objectdatasource has [quoted text clipped - 11 lines] > > Jason Dear Jason When binding the ObjectDataSource to the GridView with the DataSourceID property you have no control over when the binding occurs. If there are problems because of (intially) null parameter values then set the "DefaultValue" property of each parameter to something meaningful (DefaultValue is used when the actual parameter source - in this case a web server control - has null content). HTH > > I have a gridview that is using an objectdatasource that is calling a > > BLL class that wraps a Typed dataset. The objectdatasource has [quoted text clipped - 24 lines] > > HTH Oops, slight correction When binding the ObjectDataSource (or any other type of DataSource control) with the DataSourceID property of controls like GridView, FormView etc, then you have no control over when the *automatic* data binding occurs. You can however force it to occur manually with the DataBind() method. This will cause the data binding to occur in addition to when it happens automatically.
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