In VB. NET, you can only enter numbers in Textbox (2)

Public Class Form1
Inherits System. Windows. Forms. Form
# Region "code generated by Windows Form Designer"
Public Sub New ()
MyBase. New ()
'The call is required by the Windows Form Designer.
InitializeComponent ()
'Add any initialization after InitializeComponent () is called.
End Sub
'Form override dispose to clear the component list.
Protected Overloads Overrides Sub Dispose (ByVal disposing As Boolean)
If disposing Then
If Not (components Is Nothing) Then
Components. Dispose ()
End If
End If
MyBase. Dispose (disposing)
End Sub
'Windows forms designer required
Private components As System. ComponentModel. IContainer
'Note: The following procedure is required by the Windows Forms designer
'You can use the Windows Form Designer to modify this process.
'Do not use the code editor to modify it.
Friend WithEvents TextBox1 As System. Windows. Forms. TextBox
<System. Diagnostics. DebuggerStepThrough ()> Private Sub InitializeComponent ()
Me. TextBox1 = New System. Windows. Forms. TextBox
Me. SuspendLayout ()
'
'Textbox1
'
Me. TextBox1.Location = New System. Drawing. Point (112, 96)
Me. TextBox1.Name = "TextBox1"
Me. TextBox1.TabIndex = 0
Me. TextBox1.Text = ""
'
'Form1
'
Me. AutoScaleBaseSize = New System. Drawing. Size (6, 14)