Format Textbox for $$$

Format Textbox for $$$

• svashchenko

  you may have to consider some additional error checking but this should get you on the right track:

  Private Sub TextBox1_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox1.KeyPress

  If Char.IsNumber(e.KeyChar) Then

  e.Handled = True

  Select Case TextBox1.Text.Length

  Case Is = 0

  TextBox1.Text = "0.0" & e.KeyChar

  Case Is >= 1

  TextBox1.Text = TextBox1.Text.Trim("0")

  TextBox1.Text = TextBox1.Text.Replace(".", "")

  TextBox1.Text = TextBox1.Text & e.KeyChar

  TextBox1.Text = TextBox1.Text.Insert(TextBox1.Text.Length - 2, ".")

  End Select

  Else

  e.Handled = True

  End If

  End Sub

  
  
  

• LeRainieur

  From the sample provided, I would use the following:

  txtValue.Text = myDecimal/100.ToString("n2")

  I typically find my users are used to pressing the period key so I would not worry about the /100 part. You would want to check to make sure they enter a valid number however.

  You could format it as currency instead of a number if you want by using myDecimal.ToString("c2"). Watch out for the default behavior of Decimal.TryParse with currency values, though. (see http://devauthority.com/blogs/jwooley/archive/2006/03/15/788.aspx)

  Jim Wooley

  
  
  

• Saberinth

  You could just use the MaskedTextBox, then you wouldn't have to write any code. Just simply set the Mask property to the format you want and voila, no nasty parsing code.
  

• Edward Clements

  Another thought, are you trying to format a number or the entered value in the text box (which is a string) You need to convert the string to a number before you can use the Format(#,##0.00) or .ToString("n2") methods. It won't work if you are just trying to format a string as another string.

  Jim Wooley
  http://devauthority.com/blogs/jwooley

  
  
  
• Format Textbox for $$$