向嵌套面板添加控件的顺序是否正确？

Question

I have odd drawing of Controls within FlowLayoutPanels happening when I change the order of when the Controls are added to the FlowLayoutPanels and when those panels are added to a main panel.

Specifically, I have groups of Controls I wish to show together. I add the Controls in a group to a FlowLayoutPanel and add all of these panels to a main FlowLayoutPanel . Now, if if I add the child FlowLayoutPanels to the main ( mainPanel.Controls.Add(childPanel) ) before adding the Controls to the child, the Controls are drawn properly. If I add all of the Controls to the child FlowLayoutPanel then add the panel to the main panel, all of the Controls are drawn in-properly.

Answer 1

It will not glitch if you first call SuspendLayout :

this.SuspendLayout();

// ... add controls

this.ResumeLayout();