Re: Strange security issue in WinForms application

From: Mary Chipman (mchip_at_online.microsoft.com)
Date: 12/13/04

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    Date: Mon, 13 Dec 2004 17:20:08 -0500

    In your original message you said it was a SqlPermission. Are you
    throwing multiple permissions exceptions? What is the exact message?

    --Mary

    On Mon, 13 Dec 2004 10:45:02 -0800, "ejstembler"
    <ejstembler@discussions.microsoft.com> wrote:

    >It's permission related not SQL Server... if I make a call to
    >MessageBox.ShowDialog a UIPermission exception is thrown. For whatever
    >reason, the UserControl has less rights then the Form.
    >
    >"Mary Chipman" wrote:
    >
    >> If it's a SQL Server error, try throwing a Profiler trace on it so you
    >> can capture the information flowing to and from the SQL Server
    >> database. You also might want to step through the code and look at the
    >> connection string, etc.
    >>
    >> --Mary
    >>
    >> On Fri, 10 Dec 2004 13:51:14 -0800, "ejstembler"
    >> <ejstembler@discussions.microsoft.com> wrote:
    >>
    >> >I have this WinForms application which is exhibiting a strange security issue.
    >> >
    >> >The project contains a Form and a UserControl. The Form has a method which
    >> >populates data and an event from the UserControl. When I call the method
    >> >from the UserControl event it raises a SqlPermission exception. If I call
    >> >the method from any other method in the from (such as Form_Load) it works
    >> >fine.
    >> >
    >> >I'm assuming the UserControl must have less rights assigned to it, but why?
    >> >It's embedded in the same project as the Form (and also embedded on the Form
    >> >itself). Incidentially, even if I grant the executable "FullTrust" it still
    >> >raises the exception from the UserControl event.
    >> >
    >> >Does anyone know what's going on and why?
    >>
    >>

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