TextBoxBase.ViewportWidth Property
.NET Framework 4.5
[This documentation is for preview only, and is subject to change in later releases. Blank topics are included as placeholders.]
Gets the horizontal size of the scrollable content area.
Namespace: System.Windows.Controls.Primitives
Assembly: PresentationFramework (in PresentationFramework.dll)
Property Value
Type: System.DoubleA floating-point value that specifies the horizontal size of the scrollable content area, in device-independent units (1/96th inch per unit).
The value of this property is 0.0 if the text editing control is not configured to support scrolling.
This property has no default value.
The following example demonstrates how to read the value of the ViewportWidth property.
private void initValues(object sender, EventArgs e) { myTB1.Text= "ExtentHeight is currently " + myTextBox.ExtentHeight.ToString(); myTB2.Text= "ExtentWidth is currently " + myTextBox.ExtentWidth.ToString(); myTB3.Text= "HorizontalOffset is currently " + myTextBox.HorizontalOffset.ToString(); myTB4.Text= "VerticalOffset is currently " + myTextBox.VerticalOffset.ToString(); myTB5.Text = "ViewportHeight is currently " + myTextBox.ViewportHeight.ToString(); myTB6.Text = "ViewportWidth is currently " + myTextBox.ViewportWidth.ToString(); radiobtn1.IsChecked = true; }
Windows 8 Consumer Preview, Windows Server 8 Beta, Windows 7, Windows Server 2008 SP2, 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.
