redraw(getColumnResizeX(), 0, 1, lineHeight, false);
int lineWidth = getGridLineWidth();  redraw(getColumnResizeX() - lineWidth, 0, 1, lineHeight, false);
void drawColumnResizeLine(int xPosition) {	GC gc = new GC(this);	int lineHeight = getClientArea().height;	redraw(getColumnResizeX(), 0, 1, lineHeight, false);	setColumnResizeX(xPosition);	gc.drawLine(xPosition, 0, xPosition, lineHeight);	gc.dispose();}