Bagikan melalui

TextBoxBase.ViewportHeight Properti

Definisi

Ruang nama:
System.Windows.Controls.Primitives
Rakitan:
PresentationFramework.dll

Mendapatkan ukuran vertikal area konten yang dapat digulir.

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

Nilai Properti

Double

Nilai floating-point yang menentukan ukuran vertikal area konten yang dapat digulir, dalam unit independen perangkat (1/96 inci per unit).

Nilai properti ini adalah 0,0 jika kontrol pengeditan teks tidak dikonfigurasi untuk mendukung pengguliran.

Properti ini tidak memiliki nilai default.

Contoh

Contoh berikut menunjukkan cara membaca nilai ViewportHeight properti.

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

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