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QueryAccessibilityHelpEventArgs.HelpNamespace Property

Gets or sets a value specifying the name of the Help file.

Namespace: System.Windows.Forms
Assembly: System.Windows.Forms (in system.windows.forms.dll)

public string HelpNamespace { get; set; }
/** @property */
public String get_HelpNamespace ()

/** @property */
public void set_HelpNamespace (String value)

public function get HelpNamespace () : String

public function set HelpNamespace (value : String)

Not applicable.

Property Value

The name of the Help file. This name can be in the form C:\path\sample.chm or /folder/file.htm.

The following code example demonstrates the use of this member. In the example, an event handler reports on the occurrence of the Control.QueryAccessibilityHelp event. This report helps you to learn when the event occurs and can assist you in debugging. To report on multiple events or on events that occur frequently, consider replacing System.Windows.Forms.MessageBox.Show with System.Console.WriteLine or appending the message to a multiline TextBox.

To run the example code, paste it into a project that contains an instance of a type that inherits from Control, such as a Button or ComboBox. Then name the instance Control1 and ensure that the event handler is associated with the Control.QueryAccessibilityHelp event.

private void Control1_QueryAccessibilityHelp(Object sender, QueryAccessibilityHelpEventArgs e) {

System.Text.StringBuilder messageBoxCS = new System.Text.StringBuilder();
messageBoxCS.AppendFormat("{0} = {1}", "HelpNamespace", e.HelpNamespace );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "HelpString", e.HelpString );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "HelpKeyword", e.HelpKeyword );
messageBoxCS.AppendLine();
MessageBox.Show(messageBoxCS.ToString(), "QueryAccessibilityHelp Event" );
}

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0
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