Hi,
I'm trying to customize and change the fill color of the lasso rectangle which is displayed allowing the selection of items.

The lasso rectangle is being displayed when drawing on empty space on the canvas, with the diagram behavior set as below:

diagram.setBehavior(Behavior.DrawLinks); 

But it seems that the default fill color of the lasso rectangle is always gray with some opacity, and the border is always solid gray.
I was wondering how to change the fill color and the border style of the lasso rectangle?
For example, I would like to set the fill color as light blue, with 20% opacity, and border style as dash pattern.

The MindFusion Diagram library version being used is 3.5.7.

Thanks in advance!

add this for dashed border -

this.selectionRect.strokeDashStyle = Drawing.DashStyle.Dot; 

Regards,
Slavcho
Mindfusion

It's called selectionRect in v3 too, but not listed in d.ts file there as public. You should be able to access it regardless, using 'as any' cast if you are coding in TypeScript, or possibly add it to the definitions file yourself. We have it listed in d.ts since v4 like this:

/**
* @class A controller used to draw selection rectangle in the diagram.
* @augments SinglePointerController
*/
export class CreateSelectionController extends SinglePointerController {
	/**
	* Initializes a new instance of the CreateSelectionController class.
	* @constructor
	* @param {Selection} selection The selection that will be drawn by this controller.
	*/
	constructor(selection: Selection);
	selection: Selection;
	selectionRect: Rect;
	lastPosition: any;
} 

Regards,
Slavcho
Mindfusion