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Number Only String
Author:
Michel Renaud
E-mail:
Click to e-mail author
Submitted:
11/30/2007
Version:
VB 2005
Compatibility:
VB 2005, VB 2008
Category:
String Manipulation
Views:
15386
Function that filters characters and returns numbers only.
Declarations:
'none
Code:
Private Function OnlyNumberString(ByVal input As String) As String Dim StrChars As String = input.ToCharArray Dim outputStr As String For Each s As String In StrChars If Char.IsDigit(s) = True Then outputStr &= s Else 'show invalid chars MessageBox.Show("This Charater is not a Number" & System.Environment.NewLine _ & "'" & s & "'", "Invalid String", MessageBoxButtons.OK, MessageBoxIcon.Information) End If Next Return outputStr End Function ' use ' you need Label,textbox,button Private Sub Button9_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button9.Click Me.lblshow.Text = OnlyNumberString(Me.txtInput.Text) End Sub
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