Please try to check these behaviour when clicking, dragging or double-clicking controls in ToolBox.
As a consequence, above controls become invisible in the designer area and have to go to Properties window, choose the control and change the size.
Also, can you consider, if possible making the default size of the DataGridView when click->drag->mouse release. Default size is 75, 23 and it looks as if you are just dropping a Button.
Yes. These issues had been resolved. But my request for datagridview default size when drag to the designer surface is still the same. If possible, make it a little bigger like the default Panel control size (200, 100).
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