Alert Dialog

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Overview

Dragging and dropping a dialog creates a view containing the dialog. The view can be selected from the Page Structure or from the tabs given at the bottom. The display of the dialog box at runtime is usually associated with the onClick event of a Button widget. You can also trigger the dialog by calling methods from JavaScript.

Alert Dialog

For Alert Dialog, you can set:

• the name, the title of the alert pop-up, message to be displayed in the pop-up, text on the OK button and the type of alert - error, information, success or warning.
• the icon for display next to the title of the alert box, you can pick the icon from the icon dialog.

Script Access

Dialog widget in your project can be accessed by associating the open and close properties of the dialog with an event of any other widget. The dialog can be accessed through scripting by adding DialogService to the page controller and adding the code for open and close as shown below, here we are displaying an alert dialog on click of a button: Click event of the button should trigger the following JavaScript code:

Page.button3Click = function($event, widget) {
     Page.Widgets.alertdialog1.open();
 }

For hiding dialog:

/** function called on button1 click **/
        Page.button1Click = function($event, widget) {
            Page.Widgets.alertdialog1.close();
        };  

Properties & Events

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Alert Dialog Properties

Property	Description
Title	Set the title of an alert dialog.
Name	The name is a unique identifier for alert dialog.
Message	Set the message of the widget.
Ok Text	This widget gives a pop-up window. It can be used to give a warning message to the user. For example, you are about to leave this page.
Alert Type	This property will help in identifying the type of alert in the alert box. Can be set to error (default), information, success, and warning.
Accessibility
Tab index	The tab index attribute specifies the tab order of an element. You can use this property to change the default tabbing order for widget access using the tab key. The value can range from 0 to 32767. The default is 0 and -1 makes the element non-focusable. NOTE: In Safari browsers, by default, Tab highlights only text fields. To enable Tab functionality, in Safari Browser from Preferences -> Advanced -> Accessibility set the option "Press Tab to highlight each item on a webpage".
Layout
Width	The width of your widget can be specified in px or % (i.e 50px, 75%).
Height	The height of your widget can be specified in px or % (i.e 50px, 75%).
Modal	This property, if set true, adds a backdrop for the dialog restricting the closure of the dialog when the user clicks outside of the dialog. The default value is false, which allows close of dialog on click outside.
Behavior
Enable Default Close Action	This property allows the user to access close action from header through an "x" icon; and also enables close through ESC key.
Animation	This property controls the animation of an element. The animation is based on the CSS classes and works only in the run mode.
Keyboard	This property if set true allows closing of dialog on ESC keypress. The default is true.
Graphics
Icon Class	This property defines the class of the icon that is applied to the button.
Icon Width	Optional property; but you will need this if you are using the button's iconUrl. Please enter the width of your icon. WARNING: It's best to specify size in pixels, not percent.
Icon Height	Optional property; but you will need this if you are using the button's iconUrl. Please enter the height of your icon. WARNING: It's best to specify size in pixels, not percent.
Icon Margin	Optional property; only has meaning if you specify the button's iconUrl. Values should all have "px" next to them. Use this to adjust the space between the icon and the button text.

Alert Dialog Events

Event	Description
Callback Events
On ok	This event handler is called whenever an ok event is triggered.
On close	This event handler is called whenever a close event is triggered.
On open	This widget gives a pop-up window. It can be used to give a warning message to the user. For example, you are about to leave this page.