Question

I have made a control which inherits TextBox, and I’m trying to give a notebook grid:

I already have the code that will specify where to draw the lines including all of the grids features, but I’m not sure what to draw it to.
I’ve Googled a lot and searched for a brush that will let me have the same interface as a DrawingContext (so I could call drawingContext.DrawLine() etc.), or something familiar, but I couldn’t find any!

So how can I achieve to get my grid background?

P.S I can’t create a static bmp file and load it, because the grid color and spacing would most certainly change

Answer 1

You could try using DrawingVisual to get your DrawingContext then create a VisualBrush to assign to your Background. Something like this.

DrawingVisual dv = new DrawingVisual();
DrawingContext dc = dv.RenderOpen();

dc.DrawLine( new Pen(Brushes.Red,5),new Point(0,0),new Point(50,50));
dc.Close();

VisualBrush vb = new VisualBrush(dv);
textBox1.Background = vb;