[RESOLVED] [2008] Main Form Shown Event and Draw in a textbox

[Lasering]

Hi!!

I have several textboxes on my only form in my project. And inside the Shown event of my form I have a piece of code that Draws numbers into each every textbox using this (only part of the code is here):

        If NumerosPossiveis.Contains("1") Then g.DrawString("1", Me.Font, New SolidBrush(Me.ForeColor), 3, 1)
        If NumerosPossiveis.Contains("2") Then g.DrawString("2", Me.Font, New SolidBrush(Me.ForeColor), 13, 1)
        If NumerosPossiveis.Contains("3") Then g.DrawString("3", Me.Font, New SolidBrush(Me.ForeColor), 23, 1)
        If NumerosPossiveis.Contains("4") Then g.DrawString("4", Me.Font, New SolidBrush(Me.ForeColor), 3, 13)
        If NumerosPossiveis.Contains("5") Then g.DrawString("5", Me.Font, New SolidBrush(Me.ForeColor), 13, 13)
        If NumerosPossiveis.Contains("6") Then g.DrawString("6", Me.Font, New SolidBrush(Me.ForeColor), 23, 13)
        If NumerosPossiveis.Contains("7") Then g.DrawString("7", Me.Font, New SolidBrush(Me.ForeColor), 3, 25)
        If NumerosPossiveis.Contains("8") Then g.DrawString("8", Me.Font, New SolidBrush(Me.ForeColor), 13, 25)
        If NumerosPossiveis.Contains("9") Then g.DrawString("9", Me.Font, New SolidBrush(Me.ForeColor), 23, 25)

So when I run the program I should see all the drawn strings, instead I get this (See attachment)
Its like he draw the strings correctly but then something draw over the strings.
Why does this happen?