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Module 8: Enhancingthe Usability of

Applications

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Overview

Adding Accessibility Features

Adding Help to an Application

Localizing an Application

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Lesson: Adding Accessibility Features

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Accessibility options

Microsoft accessibility aids

Narrator

Magnifier

On-Screen Keyboard

Developers can provide accessibility support by settingproperties on forms and controls in their applications

Accessibility Support in the .NET Framework

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How to Make Forms and Controls Accessible

this.AppExitButton = new System.Windows.Forms.PushButton();

this.AppExitButton.Text = "E&xit";AppExitButton.AccessibleRole =System.Windows.Forms.AccessibleRole.PushButton;

AppExitButton.AccessibleName = "Exit";AppExitButton.AccessibleDescription = "Use this button to

exit the application";

this.Controls.Add(this.AppExitButton);

Control Property Description

AccessibleName

Briefly describes and identifies

the object. Examples: button

or menu item text

AccessibleDescriptionProvides greater context for

low-vision or blind users

AccessibleRoleDescribes the use of the

element in the user interface

Set standard properties

to values that supportaccessibility

Set accessibility properties

Text, Font Size, Forecolor,Backcolor, BackgroundImage

At design time orprogrammatically

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How to Test Accessibility

Build the application

Turn on an accessibility aid, such as Narrator

Run the application

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Practice: Adding Accessibility Support to anApplication

In this practice, you will

Set the AccessibleName property for acontrol

Enable Narrator Run the application to see the results

10 minBegin reviewing the objectives for

this practice activity

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Lesson: Adding Help to an Application

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Help in the .NET Framework

Context-sensitive Help

HelpProvidercontrol

HelpButtonproperty

Help menu support

The ToolTip control

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How to Add Context-Sensitive Help for Forms andControls

Add the HelpProvider controlSet the HelpNamespaceproperty

Add a HelpButton to the form

For each control that you want to add Help information set thefollowing properties

HelpKeyword

HelpNavigator

HelpString

Build and test the application

Give a control focus and press F1

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How to Link Help Topics to a Menu

Help.ShowHelp (this, HelpProvider.HelpNamespace);

Parent of the Help

dialog box

Path and name of

Help file

Set the HelpNamespace property to point to a file or URL,such as http://localhost/InternalBusinessAppHelp.htm

Add a MainMenu control to the form

AddHelpmenu item and subitems

Implement Helpmenu subitem click event procedures to openthe HelpNamespace

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Practice: Adding Help to an Application


Add context-sensitive Help to anapplication

Link a Help file to context-sensitive Help Link a Help file to a Helpmenu item



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How to Display Help with the ToolTip Control

Add the ToolTip control

Build and test theapplication

Set the value for theToolTip on ToolTipproperty

Point to a control that hasan associated ToolTip

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Practice: Adding ToolTips to an Application


Add the ToolTipcontrol to an application

Set the ToolTipproperty for a control



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Lesson: Localizing an Application

Globalization

Localization

Culture

Region

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Localization in the .NET Framework

Localizing the user interface elements

Localizing other resources

Strings

Bitmaps

Other objects, such as audio files

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How to Set Localization Properties

Create the default culture version of the form

Set the Localizable property of the form to True

Set the appropriate value for the Language propertyof the form

Modify the Text property values for the form and controls intothe appropriate language


Resize and/or reposition each control as needed

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How to Create Localized Resource Files

Open an existing project and add an assembly resource filefor the appropriate culture

Add entries to the resource file with values in the appropriatelanguage for the culture

Save the file


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How to Change the Locale

using System.Globalization;using System.Resources;using System.Threading;

Thread.CurrentThread.CurrentUICulture =

Thread.CurrentThread.CurrentCulture;

ResourceManager rm = newResourceManager("MyNamespace.Resource1",Assembly.GetExecutingAssembly());

MessageBox.Show(rm.GetString("test_1"));

Root name of theresource file

Main assembly forthe resources

Add code to an application to programmatically set theculture and UICulture for an application to the new value

Add code to the application to use a resource manager to

extract the elements from the resource file

The user can change the regional and languageoptions from Control Panel

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Practice: Localizing an Application


Localize the user interface of anapplication

Add localized string resources to anapplication



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Review

Adding Accessibility Features

Adding Help to an Application

Localizing an Application

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Lab 8.1: Enhancing the Usability of an Application

Exercise 1: Adding Support for Accessibility

Exercise 2: Adding Help to an Application

Exercise 3: Adding ToolTips to an Application

Exercise 4: Localizing the User Interface of anApplication

Exercise 5: Localizing Resources in anApplication

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Course Evaluation

Documents

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