GridPattern.ColumnCountProperty 字段

定义

命名空间:

System.Windows.Automation

程序集:

UIAutomationClient.dll

标识 ColumnCount 属性。

public: static initonly System::Windows::Automation::AutomationProperty ^ ColumnCountProperty;

public static readonly System.Windows.Automation.AutomationProperty ColumnCountProperty;

 staticval mutable ColumnCountProperty : System.Windows.Automation.AutomationProperty

Public Shared ReadOnly ColumnCountProperty As AutomationProperty 

字段值

AutomationProperty

示例

在以下示例中，根元素传递给一个函数，该函数返回根子代的UI 自动化元素集合，并满足一组属性条件。

///--------------------------------------------------------------------
/// <summary>
/// Finds all automation elements that satisfy 
/// the specified condition(s).
/// </summary>
/// <param name="targetApp">
/// The automation element from which to start searching.
/// </param>
/// <returns>
/// A collection of automation elements satisfying 
/// the specified condition(s).
/// </returns>
///--------------------------------------------------------------------
private AutomationElementCollection FindAutomationElement(
    AutomationElement targetApp)
{
    if (targetApp == null)
    {
        throw new ArgumentException("Root element cannot be null.");
    }

    PropertyCondition conditionSupportsGridPattern =
        new PropertyCondition(
        AutomationElement.IsGridPatternAvailableProperty, true);

    PropertyCondition conditionOneColumn =
        new PropertyCondition(
        GridPattern.ColumnCountProperty, 1);

    PropertyCondition conditionOneRow =
        new PropertyCondition(
        GridPattern.RowCountProperty, 1);

    AndCondition conditionSingleItemGrid =
        new AndCondition(
        conditionSupportsGridPattern, 
        conditionOneColumn, conditionOneRow);

    return targetApp.FindAll(
        TreeScope.Descendants, conditionSingleItemGrid);
}

'''--------------------------------------------------------------------
''' <summary>
''' Finds all automation elements that satisfy 
''' the specified condition(s).
''' </summary>
''' <param name="targetApp">
''' The automation element from which to start searching.
''' </param>
''' <returns>
''' A collection of automation elements satisfying 
''' the specified condition(s).
''' </returns>
'''--------------------------------------------------------------------
Private Function FindAutomationElement( _
ByVal targetApp As AutomationElement) As AutomationElementCollection
    If targetApp Is Nothing Then
        Throw New ArgumentException("Root element cannot be null.")
    End If

    Dim conditionSupportsGridPattern As New PropertyCondition( _
    AutomationElement.IsGridPatternAvailableProperty, True)

    Dim conditionOneColumn As New PropertyCondition( _
    GridPattern.ColumnCountProperty, 1)

    Dim conditionOneRow As New PropertyCondition( _
    GridPattern.RowCountProperty, 1)

    Dim conditionSingleItemGrid As New AndCondition( _
    conditionSupportsGridPattern, conditionOneColumn, conditionOneRow)

    Return targetApp.FindAll( _
    TreeScope.Descendants, conditionSingleItemGrid)

End Function 'FindAutomationElement

注解

此标识符由UI 自动化客户端应用程序使用。 UI 自动化提供程序应使用等效字段。GridPatternIdentifiers