Resize panel to fit contained elements in windows forms

winforms panel resize
user420667 picture user420667 · Sep 27, 2011 · Viewed 32.3k times · Source

I am creating a collapsible panel element, which would essentially be a panel element with a button element and a panel element below the button. Clicking the button causes the neighboring panel to have Visible = false. I would like to resize the containing panel when the child panel is set to invisible.

I have done this manually, by setting the Size property to be the sum of the widths and heights of the visible elements (either the button or the button and the child panel.)

I am curious to know though if there was a way to force the resize of the containing panel without manually calling Size.

I guess I'm looking for the inverse of the property Dock=Fill, which automatically resizes elements based on the size of their containing element.

Thanks in advance.

Answer

ispiro picture ispiro · Sep 27, 2011

How about doing:

panel1.Size = new Size(0, 0);
panel1.AutoSize = true;

and then instead of changing the visibility, do this:

panel1.Controls.Remove(panel2);

and when you want to bring it back:

panel1.Controls.Add(panel2);

(panel1 is the back-panel)

Related questions

How can I set the opacity or transparency of a Panel in WinForms?

I was wondering how to change or modify the transparency of a Panel in C#, not the whole form, but the panel only.. I've seen many C# tutorials on Opacity, but its for the Form. im looking for how it …

Read More
Removing dynamic controls from panel

I have dynamically generated controls on the panels of windows form and i have also generated a button for removing the controls, all in rows. int c = 0; private void button1_Click(object sender, EventArgs e) { int v; v = c++; panel1.…

Read More
How do you add a scrollbar to a Panel control with many controls in windows form application?

How do you add a scrollbar to a Panel control with many controls in windows form application?

Read More