Visual Basic.Net Help Please

[Bresy]

How to check textbox inputs
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Hi I relatively new to VB.Net. And I have to create a sort of quiz type application.
There are a few Text boxes where the user will input their answers. I want the code to check the users input and compare with set answer. If correct add 1 to a total and at the end display the total correct answers. I have a code but I keep getting Errors like cannot convert boolean to integer etc. Any help please..

this is my code at the moment what is wrong?

Private Sub btnCheck_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCheck.Click
Dim TotalAns As Integer
Dim txt As Boolean

Select Case txt
Case txtRep1.Text = "A"
TotalAns += 1
Case txtRep2.Text = "B"
TotalAns += 1
End Select
txtResults.Text = Str(TotalAns)
End Sub
End Class