TextRange.Start Eigenschaft

Definition

Namespace:

System.Windows.Documents

Assembly:

PresentationFramework.dll

Ruft die Position ab, die den Anfang der aktuellen Auswahl markiert.

C#

public System.Windows.Documents.TextPointer Start { get; }

Eigenschaftswert

TextPointer

Ein TextPointer, der auf den Anfang der aktuellen Auswahl zeigt.

Beispiele

Im folgenden Beispiel wird die Verwendung der Start -Eigenschaft veranschaulicht.

C#

// 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;
    }
}

Gilt für:

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