TextBoxBase.ViewportHeight TextBoxBase.ViewportHeight TextBoxBase.ViewportHeight TextBoxBase.ViewportHeight Property

定義

スクロール可能なコンテンツ エリアの縦のサイズを取得します。Gets the vertical size of the scrollable content area.

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

プロパティ値

スクロール可能なコンテンツ エリアの縦のサイズを指定する浮動小数点値デバイスに依存しない単位 (1 単位は 1/96 インチ)device-independent units (1/96th inch per unit)します。A floating-point value that specifies the vertical size of the scrollable content area, in デバイスに依存しない単位 (1 単位は 1/96 インチ)device-independent units (1/96th inch per unit).

テキスト編集コントロールがスクロールをサポートするために構成されていない場合、このプロパティの値は 0.0 です。The value of this property is 0.0 if the text editing control is not configured to support scrolling.

このプロパティには既定値はありません。This property has no default value.

次の例の値を読み取る方法を示します、ViewportHeightプロパティ。The following example demonstrates how to read the value of the ViewportHeight 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

適用対象

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