I have used code from these two links:
- MSDN site[^]
- Automatically put decimal for currency format in TextBox when typing[^]
to code a textbox (unbound) for accepting numeric input with 2 decimal places.
The cursor is placed on the right and the text flows from right to left.
The text-align property of the texbox has been set to Right.
Dim strCurrency As String = ""
Dim acceptableKey As Boolean = False
Private Sub TextBox1_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles TextBox1.KeyDown
If (e.KeyCode >= Keys.D0 And e.KeyCode <= Keys.D9) OrElse (e.KeyCode >= Keys.NumPad0 And e.KeyCode <= Keys.NumPad9) OrElse e.KeyCode = Keys.Back Then
acceptableKey = True
Else
acceptableKey = False
End If
End Sub
Private Sub TextBox1_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox1.KeyPress
If acceptableKey = False Then
e.Handled = True
Return
Else
If e.KeyChar = Convert.ToChar(Keys.Back) Then
If strCurrency.Length > 0 Then
strCurrency = strCurrency.Substring(0, strCurrency.Length - 1)
End If
Else
strCurrency = strCurrency & e.KeyChar
End If
If strCurrency.Length = 0 Then
TextBox1.Text = ""
ElseIf strCurrency.Length = 1 Then
TextBox1.Text = "0.0" & strCurrency
ElseIf strCurrency.Length = 2 Then
TextBox1.Text = "0." & strCurrency
ElseIf strCurrency.Length > 2 Then
TextBox1.Text = strCurrency.Substring(0, strCurrency.Length - 2) & "." & strCurrency.Substring(strCurrency.Length - 2)
End If
TextBox1.Select(TextBox1.Text.Length, 0)
End If
e.Handled = True
End Sub