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TextRange.Start Property

Gets the position that marks the beginning of the current selection.

Namespace:  System.Windows.Documents
Assembly:  PresentationFramework (in PresentationFramework.dll)

public TextPointer Start { get; }

Property Value

Type: System.Windows.Documents.TextPointer
A TextPointer that points to the beginning of the current selection.

The following example demonstrates the use of the Start property.

// This method returns true if two specified selections overlap, including when the 
// end of one selection serves as the beginning of the other. 
bool DoSelectionsOverlap(TextRange selection1, TextRange selection2)
{
    // Is either end of selection2 contained by selection1? 
    if (selection1.Contains(selection2.Start) || selection1.Contains(selection2.End))
    {
        // If so, the selections overlap. 
        return true;
    }
    // If not, selection2 may still entirely contain selection1. 
    // Is either end of selection1 contained by seleciotn2? 
    else if (selection2.Contains(selection1.Start) || selection2.Contains(selection1.End))
    {
        // If so, the selections overlap. 
        return true;
    }
    // If neither selection contains the begging or end of the other selection,  
    //the selections do not overlap. 
    else return false;    
}

.NET Framework

Supported in: 4.5, 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, 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.

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