Hi,
Do you mean you want to maximize theform when this load?
Set WindowState property of the form to "Maximized" or add the following in the load event:
.WindowState = FormWindowState.Maximized;
Set the height to the maximum height:
.Height = this.MaximumSize.Height;
If I misunderstood you, or you have other questions, please feel free to tell me.
Best regards,
Ling Wang
Please remember to click “Mark as Answer�on the post that helps you, and to click “Unmark as Answer�if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.