Modifier

Partager via

TextBoxBase.ExtentWidth Property

  • Reference

Definition

Namespace:
System.Windows.Controls.Primitives
Assembly:
PresentationFramework.dll

Gets the horizontal size of the visible content area.

public:
 property double ExtentWidth { double get(); };
public double ExtentWidth { get; }
member this.ExtentWidth : double
Public ReadOnly Property ExtentWidth As Double

Property Value

Double

A floating-point value that specifies the horizontal size of the visible 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.

Examples

The following example demonstrates how to read the value of the ExtentWidth 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;
}

Private Sub initValues(ByVal sender As Object, ByVal e As EventArgs)
    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

Applies to

See also