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 Overrides Property Multiline As Boolean

Property Value

Type: System.Boolean

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 Sub CreateMyMultilineTextBox()
    ' Create an instance of a TextBox control.
    Dim textBox1 As 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!"
End Sub

.NET Framework
Available since 2.0
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