MultiviewControl unable to display

I have a menu with several buttons.

When i press the first button it sets the view to "visible". Then a textbox + a button appear wihout any problem.

The problems lies where i wanne开发者_如何学JAVA do the exact same thing for another button, the controls actually never show up. Both are in 2 seperate views within 1 multiview control.

The multiview is located in a content page, and everything is triggered by pressing on a button that is located in the MasterPage. In that button click event is a Response.Redirect that sends the page to the content page.

    string a = Request.QueryString["a"];
    string b = Request.QueryString["b"];

    if (a != "")
    {
        if (a == "addA")
        {
            MultiviewQuestions.SetActiveView(viewAddA);
        }
    }

    if (b != "")
    {
        if (b == "addB")
        {
            MultiviewQuestions.SetActiveView(viewAddB);
        }
    }

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This sets up a condition to have 2 active views which isn't allowed. Last in will always win. You need to specify which one you are setting if both a and b are set and true.