Question

m.pen = Pens.Red; //No error

m.pen.EndCap = System.Drawing.Drawing2D.LineCap.Square;        //error

Where m is an object of another class which holding the Pen as global.

While i am trying to set endcap or startcap it shows me the error as

“Changes cannot be made to Pen because permissions are not valid.”

Anyone Know How to Rectify This.

Answer 1

Pen object returned by Pens are immutable, meaning their properties cannot be changed. Try creating an object of Pen.

Pen pen =new Pen(Color.Red,20f);
pen.EndCap = System.Drawing.Drawing2D.LineCap.Square;