我创建了一个空的 winform 并将网格代码放入其中.不同之处在于我如何设置 DataGridView.EditMode.我有它 = EditOnEnter，但如果我设置它 = EditOnKeystroke.

I created an empty winform and just put the grid code into it. The difference was how I had the DataGridView.EditMode set. I had it = EditOnEnter, but the delete works perfectly if I set it = EditOnKeystroke.