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I'm Working on an Asp.net/C# application. I want to bind a list of objects to a grid view. I've been looking a while to the ObjectDataSource control and it loads data to my datagrid as soon as my page loads. Can I change this behaviour? For example, how can I set DataBinding only when a button on my page gets clicked?

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You can hook into the ObjectDataSource's Selecting event and cancel any selects that don't match the criteria you're looking for. I do this all the time based on values in other controls.

Look at the e.Cancel property for that event.

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Do not set the datasource in markup and simply do it in the code-behind on the OnClick event of the button.

Programatically, you can specify the object to bind to as shown in the answer to this question...

ASP.NET 2.0: Specifying an instance of an object for an ObjectDataSource

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This method works for me as well. I described it in my answer to this question: stackoverflow.com/questions/831208/databind-and-postback/…
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You can create the objectdatasource in the code behind and do the bind onclick.

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Bad idea, because you might loose the benefits that you get by using the ODS.

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