TextPattern.GetSelection Method
Retrieves a collection of disjoint text ranges associated with the current text selection or selections.
Namespace: System.Windows.Automation
Assembly: UIAutomationClient (in UIAutomationClient.dll)
Return Value
Type: System.Windows.Automation.Text.TextPatternRange[]A collection of disjoint text ranges.
| Exception | Condition |
|---|---|
| InvalidOperationException | The text container does not support text selection. |
If no text is selected, GetSelection returns the degenerate text range (empty range) at the position of the system cursor (text insertion point).
If the system cursor (text insertion point) is not present, GetSelection might return null.
 Note |
|---|
Use the SupportedTextSelection property to test if text selection or positioning of the text insertion point is supported by the control. |
private TextPatternRange CurrentSelection(AutomationElement target) { // Specify the control type we're looking for, in this case 'Document' PropertyCondition cond = new PropertyCondition(AutomationElement.ControlTypeProperty, ControlType.Document); // target --> The root AutomationElement. AutomationElement textProvider = target.FindFirst(TreeScope.Descendants, cond); TextPattern textpatternPattern = textProvider.GetCurrentPattern(TextPattern.Pattern) as TextPattern; if (textpatternPattern == null) { Console.WriteLine("Root element does not contain a descendant that supports TextPattern."); return null; } TextPatternRange[] currentSelection = textpatternPattern.GetSelection(); return currentSelection[0]; }
Private Function CurrentSelection(ByVal target As AutomationElement) As TextPatternRange ' Specify the control type we're looking for, in this case 'Document' Dim cond As PropertyCondition = New PropertyCondition(AutomationElement.ControlTypeProperty, ControlType.Document) ' target --> The root AutomationElement. Dim textProvider As AutomationElement = target.FindFirst(TreeScope.Descendants, cond) Dim textpatternPattern As TextPattern = CType(textProvider.GetCurrentPattern(TextPattern.Pattern), TextPattern) If (textpatternPattern Is Nothing) Then Console.WriteLine("Root element does not contain a descendant that supports TextPattern.") Return Nothing End If Dim currentTextSelection As TextPatternRange() = textpatternPattern.GetSelection() Return currentTextSelection(0) End Function
- Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.
Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
