AutomationProperties.GetFlowsFrom(DependencyObject) Method
Definition
Important
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Gets a list of automation elements that suggests the reading order before the specified automation element.
public:
static IVector<DependencyObject ^> ^ GetFlowsFrom(DependencyObject ^ element); static IVector<DependencyObject> GetFlowsFrom(DependencyObject const& element);public static IList<DependencyObject> GetFlowsFrom(DependencyObject element);function getFlowsFrom(element)Public Shared Function GetFlowsFrom (element As DependencyObject) As IList(Of DependencyObject)Parameters
- element
- DependencyObject
The element for which to get the preceding reading order elements.
Returns
A list of automation elements that suggests the reading order before the automation element specified by the element parameter.
Windows requirements
| Device family |
Windows 10 Anniversary Edition (introduced in 10.0.14393.0)
|
| API contract |
Windows.Foundation.UniversalApiContract (introduced in v3.0)
|
Examples
<StackPanel>
<Button x:Name="first">First</Button>
<Button x:Name="third">Third</Button>
<Button x:Name="second">Second</Button>
<Button x:Name="fourth">Fourth</Button>
</StackPanel>
public sealed partial class MainPage : Page
{
public MainPage()
{
this.InitializeComponent();
// Override the default flow for next/previous items in
// UI Automation to differ from the sequence of items
// declared in markup
FlowBetween(first, second);
FlowBetween(second, third);
FlowBetween(third, fourth);
}
public void FlowBetween(UIElement fromElement, UIElement toElement)
{
// Set up the flow as bi-directional so that moving next/previous is
// consistent.
var flowsToList = AutomationProperties.GetFlowsTo(fromElement);
var flowsFromList = AutomationProperties.GetFlowsFrom(toElement);
flowsToList.Add(toElement);
flowsFromList.Add(fromElement);
}
}
Remarks
Get the list, then call the Add method to add a new element.
Important
When modifying the flow, be careful not to create a situation where the user gets stuck in a navigation loop that they can't escape if they are only using a keyboard.