TransformPattern.Move(Double, Double) 方法

定义

命名空间:

System.Windows.Automation

程序集:

UIAutomationClient.dll

移动此控件。

public:
 void Move(double x, double y);

public void Move (double x, double y);

member this.Move : double * double -> unit

Public Sub Move (x As Double, y As Double)

参数

x

Double

此控件左侧的绝对屏幕坐标。

y

Double

此控件顶部的绝对屏幕坐标。

例外

InvalidOperationException

CanMove 属性为 false。

示例

在下面的示例中 TransformPattern ，从 AutomationElement 获取控件模式，随后用于移动 AutomationElement。

///--------------------------------------------------------------------
/// <summary>
/// Obtains a TransformPattern control pattern from 
/// an automation element.
/// </summary>
/// <param name="targetControl">
/// The automation element of interest.
/// </param>
/// <returns>
/// A TransformPattern object.
/// </returns>
///--------------------------------------------------------------------
private TransformPattern GetTransformPattern(
    AutomationElement targetControl)
{
    TransformPattern transformPattern = null;

    try
    {
        transformPattern =
            targetControl.GetCurrentPattern(TransformPattern.Pattern)
            as TransformPattern;
    }
    catch (InvalidOperationException)
    {
        // object doesn't support the TransformPattern control pattern
        return null;
    }

    return transformPattern;
}

'''--------------------------------------------------------------------
''' <summary>
''' Obtains a TransformPattern control pattern from 
''' an automation element.
''' </summary>
''' <param name="targetControl">
''' The automation element of interest.
''' </param>
''' <returns>
''' A TransformPattern object.
''' </returns>
'''--------------------------------------------------------------------
Private Function GetTransformPattern( _
ByVal targetControl As AutomationElement) As TransformPattern
    Dim transformPattern As TransformPattern = Nothing

    Try
        transformPattern = DirectCast( _
        targetControl.GetCurrentPattern(transformPattern.Pattern), _
        TransformPattern)
    Catch exc As InvalidOperationException
        ' object doesn't support the TransformPattern control pattern
        Return Nothing
    End Try

    Return transformPattern

End Function 'GetTransformPattern

///--------------------------------------------------------------------
/// <summary>
/// Calls the TransformPattern.Move() method for an associated 
/// automation element.
/// </summary>
/// <param name="transformPattern">
/// The TransformPattern control pattern obtained from
/// an automation element.
/// </param>
/// <param name="x">
/// The number of screen pixels to move the automation element 
/// horizontally.
/// </param>
/// <param name="y">
/// The number of screen pixels to move the automation element 
/// vertically.
/// </param>
///--------------------------------------------------------------------
private void MoveElement(
    TransformPattern transformPattern, double x, double y)
{
    try
    {
        if (transformPattern.Current.CanMove)
        {
            transformPattern.Move(x, y);
        }
    }
    catch (InvalidOperationException)
    {
        // object is not able to perform the requested action
        return;
    }
}

'''--------------------------------------------------------------------
''' <summary>
''' Calls the TransformPattern.Move() method for an associated 
''' automation element.
''' </summary>
''' <param name="transformPattern">
''' The TransformPattern control pattern obtained from
''' an automation element.
''' </param>
''' <param name="x">
''' The number of screen pixels to move the automation element 
''' horizontally.
''' </param>
''' <param name="y">
''' The number of screen pixels to move the automation element 
''' vertically.
''' </param>
'''--------------------------------------------------------------------
Private Sub MoveElement( _
ByVal transformPattern As TransformPattern, _
ByVal x As Double, ByVal y As Double)
    Try
        If transformPattern.Current.CanMove Then
            transformPattern.Move(x, y)
        End If
    Catch exc As InvalidOperationException
        ' object is not able to perform the requested action
        Return
    End Try

End Sub

注解

无法移动、调整大小或旋转对象，使其生成的屏幕位置完全位于其容器坐标之外，并且键盘或鼠标无法访问。 例如，当顶级窗口完全移出屏幕或子对象移动到容器视区边界之外时。 在这些情况下，对象尽可能靠近请求的屏幕坐标，顶部或左侧坐标被重写，以在容器边界内。