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TextBox.Multiline Property

Gets or sets a value indicating whether this is a multiline TextBox control.

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

public override bool Multiline { get; set; }
/** @property */
public boolean get_Multiline ()

/** @property */
public void set_Multiline (boolean value)

public override function get Multiline () : boolean

public override function set Multiline (value : boolean)

Not applicable.

Property Value

true if the control is a multiline TextBox control; otherwise, false. The default is false.

AutoCompleteSource does not work on multiline TextBox controls.

When the font is changed, any indentation that you have defined does not appear. To get indentation, set Multiline to true and override WM_SETFONT without calling the base class so that SETMARGINS is not called.

The following code example creates a multiline TextBox control with vertical scroll bars. This example uses the AcceptsTab, AcceptsReturn, and WordWrap properties to make the multiline text box control useful for creating text documents.

public void CreateMyMultilineTextBox()
 {
    // Create an instance of a TextBox control.
    TextBox textBox1 = new TextBox();
       
    // Set the Multiline property to true.
    textBox1.Multiline = true;
    // Add vertical scroll bars to the TextBox control.
    textBox1.ScrollBars = ScrollBars.Vertical;
    // Allow the RETURN key to be entered in the TextBox control.
    textBox1.AcceptsReturn = true;
    // Allow the TAB key to be entered in the TextBox control.
    textBox1.AcceptsTab = true;
    // Set WordWrap to true to allow text to wrap to the next line.
    textBox1.WordWrap = true;
    // Set the default text of the control.
    textBox1.Text = "Welcome!";
 }
 

public void CreateMyMultilineTextBox()
{
    // Create an instance of a TextBox control.
    TextBox textBox1 = new TextBox();
    // Set the Multiline property to true.
    textBox1.set_Multiline(true);
    // Add vertical scroll bars to the TextBox control.
    textBox1.set_ScrollBars(ScrollBars.Vertical);
    // Allow the RETURN key to be entered in the TextBox control.
    textBox1.set_AcceptsReturn(true);
    // Allow the TAB key to be entered in the TextBox control.
    textBox1.set_AcceptsTab(true);
    // Set WordWrap to true to allow text to wrap to the next line.
    textBox1.set_WordWrap(true);
    // Set the default text of the control.
    textBox1.set_Text("Welcome!");
} //CreateMyMultilineTextBox

public function CreateMyMultilineTextBox()
 {
    // Create an instance of a TextBox control.
    textBox1 = new TextBox();
       
    // Set the Multiline property to true.
    textBox1.Multiline = true;
    // Add vertical scroll bars to the TextBox control.
    textBox1.ScrollBars = ScrollBars.Vertical;
    // Allow the RETURN key to be entered in the TextBox control.
    textBox1.AcceptsReturn = true;
    // Allow the TAB key to be entered in the TextBox control.
    textBox1.AcceptsTab = true;
    // Set WordWrap to true to allow text to wrap to the next line.
    textBox1.WordWrap = true;
    // Set the default text of the control.
    textBox1.Text = "Welcome!";
 }
 

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

.NET Compact Framework

Supported in: 2.0, 1.0

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