In this blog we will know how to collect number from string.
<%@ Page
Language="VB"
AutoEventWireup="false"
CodeFile="Default.aspx.vb"
Inherits="_Default"
%>
<!DOCTYPE html PUBLIC
"-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>Untitled
Page</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:TextBox ID="txtInput" runat="server"></asp:TextBox><br />
<asp:Button ID="btncollect"
runat="server"
Text="CollectNumber"
OnClick="btncollect_Click"
/><br />
<asp:Label ID="lblMessage" runat="server"></asp:Label>
</div>
</form>
</body>
</html>
Imports
System.Text.RegularExpressions
Partial Class _Default
Inherits
System.Web.UI.Page
Protected Sub btncollect_Click(ByVal
sender As Object,
ByVal e As
System.EventArgs) Handles btncollect.Click
lblMessage.Text =
CollectNumbers(txtInput.Text)
End Sub
Public Function CollectNumbers(ByVal
collectnum As String)
As String
Return String.Join(Nothing,
Regex.Split(collectnum, "[^\d]"))
End Function
End Class