GridPattern.ColumnCountProperty Field

Reference

Definition

Namespace:: System.Windows.Automation

Assembly:: UIAutomationClient.dll

Important

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Identifies the ColumnCount property.

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

Field Value

AutomationProperty

Examples

In the following example, a root element is passed to a function that returns a collection of UI Automation elements that are descendants of the root and satisfy a set of property conditions.

///--------------------------------------------------------------------
/// <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

Remarks

This identifier is used by UI Automation client applications. UI Automation providers should use the equivalent field in GridPatternIdentifiers.

Applies to