自定义绘图选择矩形

Question

I am working on a custom control based on a ListView control. The goal of the control is to show the events name in the first column and the event duration on a timeline on the second column. I've implemented the custom drawing for the timeline section and it all works.

Now I would like to implement a "zooming" feature. Where the user would be able to click somewhere on the second column drag the mouse and upon release the timeline would be zoomed in with starting and end times matching the mousedown/mouseup events.

Currently when I click/drag the mouse, a normal selection box appears. I would like to overide that such that I get don't get a box but more of a vertical area (so the selection is only based on the timeline axis).

I really don't know where to look and how to overide the drawing the selection box. Any pointers/sample code would be appreciated.

Answer 1

好吧，如果您不需要多选选项，请将MultiSelect属性设置为false禁用橡皮筋选择。