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Button Control in Asp.net



Button Controls:

ASP .Net provides three types of button controls: buttons, link buttons and image buttons. As the names suggest a button displays text within a rectangular area, a link button displays text that looks like a hyperlink. And an Image Button displays an image.
When a user clicks a button control, two events are raised Click and Command.
Basic syntax for button controls:
<asp:Button ID="Button1" runat="server" 
            onclick="Button1_Click" Text="Click" />
 


Common Properties of the Button control:





 


  
  

Property


  
  

Description


 



  
  

Text


  
  

The text displayed by the button. This is for button and
  link button controls only.


 



  
  

ImageUrl


  
  

For image button control only. The image to be displayed
  for the button.


 



  
  

AlternateText


  
  

For image button control only. The text to be displayed if
  the browser can't display the image.


 



  
  

CausesValidation


  
  

Determines whether page validation occurs when a user
  clicks the button. The default is true.


 



  
  

CommandName


  
  

A string value that's passed to the Command event when a
  user clicks the button.


 



  
  

CommandArgument


  
  

A string value that's passed to the Command event when a
  user clicks the button.


 



  
  

PostBackUrl


  
  

The URL of the page that should be requested when the user
  clicks the button.


 



 

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