C# check if input value is number or not c# asp.net - Net-Raft.com

Welcome aboard! We are happy you are here and wish you good net-raft!




Just a Web Code Solution
join us

How to check if input value is number or not using C# ASP.NET ?


 192

C#


0


<% @Page Language="C#" %>

<!-- code section -->
<script runat="server">

private void test1(object sender, EventArgs e)
{

float a;
string b = input1.Value;

if (!float.TryParse(b, out a))

changed_text.InnerHtml = "invalid number try it again!";

else

changed_text.InnerHtml = "valid number!";



</script>

<html>
<head>

</head>

<body>

<form runat="server">

<label>Type a number:</label>
<input runat="server" id="input1" type="text"/>
<input runat="server" id="button1" type="submit" value="Click" OnServerClick="test1"/>

<hr />
<h3> Results: </h3>
<span runat="server" id="changed_text" />
</form>

</body>

</html> 


By        
The power of the user (%)
13%



The most helpful C# solutions

detect ie C#detect ie C#C#

Click to see more ...

  4.7K     853

get latitude and longitude from ip address c#get latitude and longitude from ip address c#C#

Click to see more ...

  2.9K     257

get real user country C#get real user country C#C#

Click to see more ...

  1.7K     252

Get real client ip address using C# ?Get real client ip address using C# ?C#

Click to see more ...

  1.8K     247

check if cookie exists c#check if cookie exists c#C#

Click to see more ...

  6.3K     173

get city country region timezone c#get city country region timezone c#C#

Click to see more ...

  2.7K     163

How to detect the browser opera using C# in asp.net ?How to detect the browser opera using C# in asp.net ?C#

Click to see more ...

  2.3K     136

get hostname using C#get hostname using C#C#

Click to see more ...

  1.1K     127

Get real client latitude and longitude using C# ?Get real client latitude and longitude using C# ?C#

Click to see more ...

  831     127

how to initialize a connection to mysql database using C# ?how to initialize a connection to mysql database using C# ?C#

Click to see more ...

  1.2K     122

Welcome aboard!
We are happy you are here and
wish you good net-raft!