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PrintDialog.ShowHelp Property

Gets or sets a value indicating whether the Help button is displayed.

Namespace:  System.Windows.Forms
Assembly:  System.Windows.Forms (in System.Windows.Forms.dll)

public bool ShowHelp { get; set; }

Property Value

Type: System.Boolean
true if the Help button is displayed; otherwise, false. The default is false.

This property was marked obsolete in Windows 2000 and does not affect this and later versions of Windows.

The following code example demonstrates the use of the PrintDialog control setting the AllowSomePages, ShowHelp, and Document properties. To run this example paste the following code in a form that contains a PrintDialog control named PrintDialog1 and a button named Button1. This example requires that the button's Click event and the PrintPage event of docToPrint have been connected to the event handling methods defined in this example.


	// Declare the PrintDocument object. 
	private System.Drawing.Printing.PrintDocument docToPrint = 
		new System.Drawing.Printing.PrintDocument();

	// This method will set properties on the PrintDialog object and 
	// then display the dialog. 
	private void Button1_Click(System.Object sender, 
		System.EventArgs e)
	{

		// Allow the user to choose the page range he or she would 
		// like to print.
		PrintDialog1.AllowSomePages = true;

		// Show the help button.
		PrintDialog1.ShowHelp = true;

		// Set the Document property to the PrintDocument for  
		// which the PrintPage Event has been handled. To display the 
		// dialog, either this property or the PrinterSettings property  
		// must be set 
		PrintDialog1.Document = docToPrint;

		DialogResult result = PrintDialog1.ShowDialog();

		// If the result is OK then print the document. 
		if (result==DialogResult.OK)
		{
			docToPrint.Print();
		}

	}

	// The PrintDialog will print the document 
	// by handling the document's PrintPage event. 
	private void document_PrintPage(object sender, 
		System.Drawing.Printing.PrintPageEventArgs e)
	{

		// Insert code to render the page here. 
		// This code will be called when the control is drawn. 

		// The following code will render a simple 
		// message on the printed document. 
		string text = "In document_PrintPage method.";
		System.Drawing.Font printFont = new System.Drawing.Font
			("Arial", 35, System.Drawing.FontStyle.Regular);

		// Draw the content.
		e.Graphics.DrawString(text, printFont, 
			System.Drawing.Brushes.Black, 10, 10);
	}
of the PrintDialog control.

To run this example paste the following code must be placed in a form
containing a PrintDialog control named PrintDialog1 and a button named
Button1.

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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