Validating numeric textbox in vb net

You can use Regular Expression to validate a Textbox to enter number only.

Forms; namespace Windows Forms Application1 Public Class Form1 Private Sub Text Box1_Key Press(By Val sender As Object, By Val e As System.

Here you can see some useful techniques that accept only numbers in the textbox.

Get Data Object If data Is Nothing Then Return My Base. To Char Array If Not Is Valid(ch) Then Return True End If Next Return My Base. Get Data Object If data Is Nothing Then Return My Base. To Char Array If Not Is Valid(ch) Then Return True End If Next Return My Base. Use the textbox's "Validating" event to check the text for non-alpha characters.

Process Cmd Key(msg, key Data) Else For Each ch As Char In text. Process Cmd Key(msg, key Data) Else For Each ch As Char In text. Keys)As Boolean 'Need to prevent pasting of invalid characters If key Data = (Keys. /claes"Dennis" Using the Key Press event does not preclude the user from cutting from some other source and pasting invalid chars into the text box.

Hi Guys, I have a textbox in windows form that should only accept alphabets, numbers, spaces and underscore. Using regular expressions to find invalid character in the textbox. news:11**********************@i42g2000cwa.googlegr .. Hi Guys, I have a textbox in windows form that should only accept alphabets, numbers, spaces and underscore. Hi Guys, I have a textbox in windows form that should only accept alphabets,numbers, spaces and underscore.

If the textbox contains anyother character it should display a msg at the time of validation.. If the textbox contains anyother character it should display a msg at the time of validation.. If the textbox contains anyothercharacter it should display a msg at the time of validation..

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