vb.net and functions

I am trying to use a function to check if a remote user is a part of their workstations local admin group and it works fine.  I am trying to write the result to a textbox i have on the form and it looks like functions do not like any form controls for some reason???

Public Shared Function IsMemberOfGroup(userName As String, machineName As String, memberGroup As String) As Boolean
        Dim isMember As Boolean = False
        Using rootContext As New PrincipalContext(ContextType.Machine, machineName), _
              grp As GroupPrincipal = GroupPrincipal.FindByIdentity(rootContext, memberGroup), _
              usr As UserPrincipal = UserPrincipal.FindByIdentity(rootContext, IdentityType.SamAccountName, userName)
            If grp IsNot Nothing AndAlso usr IsNot Nothing Then
                ' Check if the user is a member of the group.
                isMember = grp.GetMembers(True).Contains(usr)
                MsgBox("yay")
            Else
                isMember = False
                MsgBox("nah")
            End If
        End Using
        Return isMember
    End Function

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The below is how i call that function:
IsMemberOfGroup(localusrname, TextBox1.Text, "administrators")

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Rather than write the result to the msgbox, i want to write it to tbadmincheck.text, any way to do that?
derek7467Asked:
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dustockCommented:
What error do you get when you try to assign the result to a textbox?  Are you trying to write the 'yay' or 'nah' result to the text box?  Have you tried to do something like

If IsMemberOfGroup(localusrname, TextBox1.Text, "administrators") Then
   tbadmincheck.Text = "yay"
Else
   tbadmincheck.Text = "nah"
End If

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derek7467Author Commented:
I didnt even think to do it like that.  Ugh, i hate when i think to deep into simple fixes.  Thanks!
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dustockCommented:
It happens to the best of us :)

Glad I was able to help!
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Visual Basic.NET

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