Returns all
AutomationElement objects that satisfy the specified condition.
Espace de noms: System.Windows.Automation
Assembly : UIAutomationClient (dans uiautomationclient.dll)
Visual Basic (Déclaration)
Public Function FindAll ( _
scope As TreeScope, _
condition As Condition _
) As AutomationElementCollection
Visual Basic (Utilisation)
Dim instance As AutomationElement
Dim scope As TreeScope
Dim condition As Condition
Dim returnValue As AutomationElementCollection
returnValue = instance.FindAll(scope, condition)
public AutomationElementCollection FindAll (
TreeScope scope,
Condition condition
)
public:
AutomationElementCollection^ FindAll (
TreeScope scope,
Condition^ condition
)
public AutomationElementCollection FindAll (
TreeScope scope,
Condition condition
)
public function FindAll (
scope : TreeScope,
condition : Condition
) : AutomationElementCollection
Paramètres
- scope
A bitwise combination of values that specifies the scope of the search.
- condition
The object containing the criteria to match.
Valeur de retour
A collection of objects that satisfies the specified condition. If there are no matches, an empty collection is returned.
The scope of the search is relative to the element on which the method is called. Elements are returned in the order in which they were encountered in the tree.
When searching for top-level windows on the desktop, be sure to specify Children in scope, not Descendants. A search through the entire subtree of the desktop could iterate through thousands of items and lead to a stack overflow.
If your client application might try to find elements in its own user interface, you must make all UI Automation calls on a separate thread.
The following example shows how to use FindAll to locate all enabled buttons in a window.
/// <summary>
/// Finds all enabled buttons in the specified window element.
/// </summary>
/// <param name="elementWindowElement">An application or dialog window.</param>
/// <returns>A collection of elements that meet the conditions.</returns>
AutomationElementCollection FindByMultipleConditions(AutomationElement elementWindowElement)
{
if (elementWindowElement == null)
{
throw new ArgumentException();
}
Condition conditions = new AndCondition(
new PropertyCondition(AutomationElement.IsEnabledProperty, true),
new PropertyCondition(AutomationElement.ControlTypeProperty, ControlType.Button)
);
// Find all children that match the specified conditions.
AutomationElementCollection elementCollection = elementWindowElement.FindAll(TreeScope.Children, conditions);
return elementCollection;
}
''' <summary>
''' Finds all enabled buttons in the specified window element.
''' </summary>
''' <param name="elementWindowElement">An application or dialog window.</param>
''' <returns>A collection of elements that meet the conditions.</returns>
Function FindByMultipleConditions(ByVal elementWindowElement As AutomationElement) As AutomationElementCollection
If elementWindowElement Is Nothing Then
Throw New ArgumentException()
End If
Dim conditions As New AndCondition(New PropertyCondition(AutomationElement.IsEnabledProperty, True), New PropertyCondition(AutomationElement.ControlTypeProperty, ControlType.Button))
' Find all children that match the specified conditions.
Dim elementCollection As AutomationElementCollection = elementWindowElement.FindAll(TreeScope.Children, conditions)
Return elementCollection
End Function 'FindByMultipleConditions
Microsoft .NET Framework 3.0 est pris en charge sur Windows Vista, Microsoft Windows XP SP2 et Windows Server 2003 SP1.
.NET Framework
Prise en charge dans : 3.0