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I have 5 textboxes and a button which once clicked I would like it to check textbox1.text and if there is the value "11" in it then change it to 1.

Once clicked again if there is the value "11" in textbox2.text also change it to 1

Once clicked again check textbox3.text if it has "11" change it to 1

Once clicked again check textbox4.text if it has "11" change it to 1

so on so forth

Thanks in advance

Try this:

vb.net Code:

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
    Static i As Integer = 0
    Dim textBoxes() As TextBox = {TextBox1, TextBox2, TextBox3, TextBox4, TextBox5}
    If i < textBoxes.Length Then
        If textBoxes(i).Text = "" Then textBoxes(i).Text = "1"
        i += 1
    End If
End Sub