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Editorial Team
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Asked: 2026-05-23T04:54:24+00:00

I’m using Microsoft’s SplitContainer control in my WinForms desktop application. I’d like to have

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I’m using Microsoft’s SplitContainer control in my WinForms desktop application.

I’d like to have a small button (or any nice UI element) between the panels of the splitter control to collapse one of the panels. E.g. a ‘button’ with two parts, if I click one part, the right side panel collapses, if I click on the other part, the left side panel collapses.

Is this possible? How could that be implemented?

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1 Answer

  1. Editorial Team

    You will have to write your own event for that. You have to decide the design. Hope you need something like below.

    private void radButton1_Click(object sender, EventArgs e) 
{ 
    splitPanel1.Collapsed = !splitPanel1.Collapsed; 
}

    EDIT 1

    There is no easy way as you think. Have a look here and here to get an idea.

    EDIT 2

    You can add two toolStrips to both panels which are Dock:Top and add two buttons as in the below image which looks quite good. Just a thought…

    enter image description here

    Edit3

    Splitter is another option for you.
    Have a look here.

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