Skip to main content

ASP.NET - The Button Control


The Button control is used to display a push button.

The Button Control

The Button control is used to display a push button. The push button may be a submit button or a command button. By default, this control is a submit button.
A submit button does not have a command name and it posts the page back to the server when it is clicked. It is possible to write an event handler to control the actions performed when the submit button is clicked.
A command button has a command name and allows you to create multiple Button controls on a page. It is possible to write an event handler to control the actions performed when the command button is clicked.
The Button control's attributes and properties are listed in our web controls reference page.
The example below demonstrates a simple Button control:
<html>
<body>

<form runat="server">
<asp:Button id="b1" Text="Submit" runat="server" />
</form>

</body>
</html>

Add a Script

A form is most often submitted by clicking on a button.
In the following example we declare one TextBox control, one Button control, and one Label control in an .aspx file. When the submit button is triggered, the submit subroutine is executed. The submit subroutine writes a text to the Label control:

Example

<script runat="server">
Sub submit(sender As Object, e As EventArgs)
lbl1.Text="Your name is " & txt1.Text
End Sub
</script>

<html>
<body>

<form runat="server">
Enter your name:
<asp:TextBox id="txt1" runat="server" />
<asp:Button OnClick="submit" Text="Submit" runat="server" />
<p><asp:Label id="lbl1" runat="server" /></p>
</form>

</body>
</html>

Show example »

Comments

Post a Comment

Popular posts from this blog

C# Generic class to parse value - "GenericConverter"

    public class GenericConverter     {         public static T Parse<T>(string sourceValue) where T : IConvertible         {             return (T)Convert.ChangeType(sourceValue, typeof(T));         }         public static T Parse<T>(string sourceValue, IFormatProvider provider) where T : IConvertible         {             return (T)Convert.ChangeType(sourceValue, typeof(T), provider);         }     }     public static class TConverter     {         public static T ChangeType<T>(object value)         {             return (T)ChangeType(typeof(T), value);         }         public static object ChangeType(Type t, object value)         {             TypeConverter tc = TypeDescriptor.GetConverter(t);             return tc.ConvertFrom(value);         }         public static void RegisterTypeConverter<T, TC>() where TC : TypeConverter         {             TypeDescriptor.AddAttributes(typeof(T), new TypeConverterAttribute(typeof(TC)));         }     } ----------------
Post a Comment
Read more

How to create a countdown timer in jquery

Create a countdown timer in jQuery First we need to include the jQuery library file to the HTML page to perform this task. To do that we need to understand that what exactly a jQuery library fie is ? JQuery library file is the library of JavaScript, which means this file contains the predefined functions of jQuery. We just need to call these functions to perform the task. jQuery functions reduces the lines of code and makes our task easy. As this jQuery library file contains the javascript functions so we need to call the function within <script> </script> tag. Now after including the file, we need to define a variable which will store that for how long you want the timer on the page(c=60) and now the time you set needs to be changed in hours , minutes and seconds using the code “ var hours = parseInt( time / 3600 ) % ;var minutes = parseInt( time / 60 ) % 60; var seconds = time % 60;” Now we need to put the condition if timer got finished (if (t
1 comment
Read more

Tip/Trick: Fix Common SEO Problems Using the URL Rewrite Extension

Search engine optimization (SEO) is important for any publically facing web-site.  A large % of traffic to sites now comes directly from search engines, and improving your site’s search relevancy will lead to more users visiting your site from search engine queries.  This can directly or indirectly increase the money you make through your site. This blog post covers how you can use the free Microsoft  URL Rewrite Extension  to fix a bunch of common SEO problems that your site might have.  It takes less than 15 minutes (and no code changes) to apply 4 simple  URL Rewrite  rules to your site, and in doing so cause search engines to drive more visitors and traffic to your site.  The techniques below work equally well with both ASP.NET Web Forms and ASP.NET MVC based sites.  They also works with all versions of ASP.NET (and even work with non-ASP.NET content). [In addition to blogging, I am also now using Twitter for quick updates and to share links. Follow me at:  twitter.com/scottg
Post a Comment
Read more