C# check if string contains number c# - Net-Raft.com

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check if string contains a number using C#


 179

C#


2

// default.aspx

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Class1.aspx.cs" Inherits="_Default" %>
<script runat="server">

protected void Page_Load(object sender, EventArgs e)
{
Response.Write(checknumber("string30"));
}

</script>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
</head>
<body>

</body>
</html>

// Class1.aspx.cs

using System;
using System.Web;
using System.Web.Services;
using System.Globalization;
using System.Text;
using System.Text.RegularExpressions;

public partial class _Default: System.Web.UI.Page
{

protected void Page_Load(object sender, EventArgs e)
{
}
[WebMethod]
public static string checknumber(string mystring)
{

string strength = "String contains a number";

if (!Regex.IsMatch(mystring, @"[0-9]+(\.[0-9][0-9]?)?", RegexOptions.ECMAScript))
strength = "String must include at least one number! ";


return strength;

}

}


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