How do I set the margin for my panel?

Question

I'm creating a windows form that will programatically add a panel to another panel. I'm trying to customize the various properties of the new panel, such as color, and size, which works. However when I try to modify the margin, nothing works. I cannot find the Thickness struct either, since it's not a WPF app, it's a Windows Forms Application. Here is my code:

    private void buttonAddExercise_Click(object sender, EventArgs e)
    {
        Panel panel = new Panel();
        panel.BackColor = Color.White;
        panel.Size = new Size(200, 300);

        panel.Margin = new Padding(20);


        listOfExercisePanels.Add(panel);
        panelNewWorkout.Controls.Add(panel);
    }

Possible Duplicate https://stackoverflow.com/questions/1003772/setting-margin-properties-in-code — Mac Man, Oct 02 '17 at 10:50
i tried that article and didnt work, as i said, i cant find the thickness object — M. Mar, Oct 02 '17 at 10:55
What do you mean by not being able to find the thickness object? You create a [Thickness](https://msdn.microsoft.com/en-us/library/system.windows.thickness.aspx) object (actually a struct) with the appropriate settings & then assign that to the Margin as shown in the link. — PaulF, Oct 02 '17 at 11:02
Possible duplicate of [Setting Margin Properties in code](https://stackoverflow.com/questions/1003772/setting-margin-properties-in-code) — PaulF, Oct 02 '17 at 11:04
I found out that `Thickness` exists in WPF Apps, but not in Windows Forms Application. I dont know what to do. — M. Mar, Oct 02 '17 at 11:20
@MacMan That's not a duplicate, the linked question is about WPF, but this one is on WinForms. Answer to both are completely unrelated. — Alejandro, Oct 02 '17 at 13:01
As you found out, Thickness is in WPF. Here's your solution: https://stackoverflow.com/questions/19163809/set-panel-border-thickness-in-c-sharp-winform — Renato Afonso, Oct 02 '17 at 15:12

score 0 · Answer 1 · answered Oct 04 '17 at 15:05

Firstly

To use Thickness you need to create/change your project .NET framework platform version to .NET Framework 4.5. because this method available only in version 4.5

Secondly

You must add DockStyle to Fill for Child components as:

Panel panel = new Panel();
        panel.BackColor = Color.White;
        panel.Size = new Size(200, 200);

        Label lb = new Label() { Text = "Hello" };

        panel.Padding = new Padding(10);
        lb.Dock = System.Windows.Forms.DockStyle.Fill;

        panel.Controls.Add(lb);

        this.Controls.Add(panel);

Thirdly

If you want to change Margin of the panel, you can put it into another parent panel

score -1 · Answer 2 · answered Oct 02 '17 at 12:18

-1

Add a reference to "PresentationFramework.dll",

and a using statement for:

using System.Windows;

PresentationFramework is not included as a reference by default.

answered Oct 02 '17 at 12:18

MichaelLake

1,735
14
17

2

That's WPF...question says WinForms. – DonBoitnott Oct 02 '17 at 12:46
Luckily you can add that assembly to a WinForms app regardless hey. – MichaelLake Jul 29 '20 at 09:17
Can does not equal should. – DonBoitnott Jul 29 '20 at 10:49
:D luckily this is solved in 4.5 so its a non issue. But adding a reference to PresentationFramework is hardly wrong. – MichaelLake Jul 30 '20 at 11:13

How do I set the margin for my panel?

2 Answers2