通过

TextBoxBase.VerticalOffset 属性

  • 参考

定义

命名空间:
System.Windows.Controls.Primitives
程序集:
PresentationFramework.dll

获取或设置垂直滚动条的位置。

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

属性值

Double

一个浮点值，该值指定垂直滚动位置，以独立于设备的单位 (每单位 1/96 英寸) 。

设置此属性会导致文本编辑控件滚动到指定的垂直偏移。 读取此属性将返回当前垂直偏移。

如果文本编辑控件未配置为支持滚动，则此属性的值为 0.0。

此属性没有默认值。

例外

ArgumentException

尝试将此属性设置为负值。

示例

以下示例演示如何读取属性的值 VerticalOffset 。

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

注解

垂直偏移量从可见文本区域的顶部测量。

适用于

另请参阅