Restrict some key or Characters in text box in a Excel Macro

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When you are using Text Boxes in Excel Macros then there are some instances where you want to restrict some entries in the Text Box.

For example, in A Textbox where you are entering Amount. Here you may need that you should be able to Enter All numeric characters from 0-9 and also Decimal (.) and Minus Sign(-).

You don’t have any inbuilt functionality in Excel Textbox to restrict it to only Numeric Values. However, by writing a piece of Code under KeyPress Event of Textbox, you can achieve this.

Just copy-paste the below-mentioned code under KeyPress Event of the Text Box.
  1.  To Restrict Non-Numeric Values in a Text Box

    To store currency amounts in a text box you should allow two special characters too like Decimal(.) and Minus Sign(-).

    Private Sub TextBox1_KeyPress(ByVal KeyAscii As MSForms.ReturnInteger)
        Select Case KeyAscii
            Case Asc("0") To Asc("9")
            Case Asc("-")
                If InStr(1, TextBox1.Text, "-") > 0 Or TextBox1.SelStart > 0 Then
                    KeyAscii = 0
                End If
            Case Asc(".")
                If InStr(1, Me.TextBox1.Text, ".") > 0 Then
                    KeyAscii = 0
                End If
            Case Else
                KeyAscii = 0
        End Select
    End Sub
    
  2.  To Restrict All Keys Except Alphabets in Text Box in Excel Macro

    Private Sub TextBox1_KeyPress(ByVal KeyAscii As MSForms.ReturnInteger)
        Select Case KeyAscii
            Case Asc("a") To Asc("z")
            Case Asc("A") To Asc("Z")
            Case Else
                KeyAscii = 0
        End Select
    End Sub
    
    

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