public override void Clear()
{
if ((layerFlags & FLOWLAYER_HAS_MULTILINE) != 0)
{
List <EditableTextLine> lines = (List <EditableTextLine>)lineCollection;
for (int i = lines.Count - 1; i > -1; --i)
{
EditableTextLine line = lines[i];
line.editableFlowLayer = null;
line.Clear();
}
lines.Clear();
lineCollection = new EditableTextLine(this);
FlowLayerHasMultiLines = false;
}
else
{
((EditableTextLine)lineCollection).Clear();
}
}