Put the FlowLayoutPanel
into a panel panel1
panel1.AutoScroll = true;
panel1.Dock = DockStyle.Fill; //if you want
FlowLayoutControl.AutoSize = true;
FlowLayoutControl.AutoScroll = false;
FlowLayoutControl.Dock = DockStyle.None;
FlowLayoutControl.Anchor = AnchorStyles.Left | AnchorStyles.Top | AnchorStyles.Right;
FlowLayoutControl.Location = new Point(0,0);
FlowLayoutControl.Size = new Size(FlowLayoutControl.Width, 0);