@T.Zacks , you could try to use ClientSize property to resize your window as per the size of user control.
Here is a code example you could refer to.
private void Form1_Load(object sender, EventArgs e)
{
this.ClientSize= userControl11.Size;
userControl11.BackColor = Color.Black;
userControl11.Location = new Point(0, 0);
}
Result:
Best Regards,
Jack
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