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YUI Library Examples: Container Family: SimpleDialog Quickstart Example

Container Family: SimpleDialog Quickstart Example

Use the SimpleDialog Control when you want to solicit very simple (usually binary) information from your users — ok/cancel, yes/no are the classic examples of this sort of interaction. Use the button below to show a SimpleDialog instance; if you click "yes", that choice will be echoed back to you by script.

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Setting up the SimpleDialog

The SimpleDialog Control is an extension of Dialog that reproduces the behavior of a simple dialog box (but without using an actual browser popup window); its primary use is to elicit binary decisions from the user (yes/no, okay/cancel, etc.). SimpleDialog makes it easy to implement this kind of interaction. In this tutorial, we will create a SimpleDialog with "Yes"/"No" choices, and display an alert if the user clicks "Yes".

SimpleDialog defines two new properties:

  1. icon: defines which of six standard icons will be displayed in the SimpleDialog;
  2. text: used to specify a small amount of text to display in the SimpleDialog.

The "buttons" property is inherited from Dialog, and uses the same familiar array-of-object literals syntax as demonstrated in the following constructor:

1// Instantiate the Dialog 
2YAHOO.example.container.simpledialog1 =  
3    new YAHOO.widget.SimpleDialog("simpledialog1",  
4             { width: "300px", 
5               fixedcenter: true, 
6               visible: false, 
7               draggable: false, 
8               close: true, 
9               text: "Do you want to continue?", 
10               icon: YAHOO.widget.SimpleDialog.ICON_HELP, 
11               constraintoviewport: true, 
12               buttons: [ { text:"Yes", handler:handleYes, isDefault:true }, 
13                          { text:"No",  handler:handleNo } ] 
14             } ); 
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Next, we'll define the handlers for our buttons. Clicking "Yes" will cause an alert to be displayed, whereas the "No" button will simply dismiss the SimpleDialog:

1// Define various event handlers for Dialog 
2var handleYes = function() { 
3    alert("You clicked yes!"); 
4    this.hide(); 
5}; 
6 
7var handleNo = function() { 
8    this.hide(); 
9}; 
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Configuration for This Example

You can load the necessary JavaScript and CSS for this example from Yahoo's servers. Click here to load the YUI Dependency Configurator with all of this example's dependencies preconfigured.

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