LoadPostData and postCollection not returning the updated values for DropDownLists

Discussion in 'ASP .Net Building Controls' started by Nathan Sokalski, Aug 26, 2008.

  1. I have a custom control that inherits CompositeControl implements
    IPostBackDataHandler and ICallbackEventHandler. In the LoadPostData
    function, I attempt to use the postCollection parameter to get the data
    posted by the child controls created in CreateChildControls. In the
    PreRender event, I add onchange attributes to the DropDownLists with a value
    created using the Page.ClientScript.GetCallbackEventReference. When one of
    my DropDownLists triggers this callback and the LoadPostData function is
    called, the postCollection parameter does not have the newly selected value
    for the DropDownList. What can I do to get the newly selected value of the
    DropDownList? Any help would be appreciated. Thanks.
    Nathan Sokalski, Aug 26, 2008
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