How would I change the border color of a button?

Question

This is my code:

buttonName = "btn" + y.ToString() + x.ToString();
Control btn = this.Controls.Find(buttonName, true)[0] as Control;
btn.BackColor = System.Drawing.Color.Blue;

However, I see no border color changing properties, or the like.

I used this code because I have a lot of buttons on my form, and any of those buttons' properties can change, so rather than call them out individually, I just made up that code which could handle them.

Is there a code similar to the one above, that would allow me to change the border color of the button?

Answer 1

I am not sure what sort of application you are working on, however in winforms there is no border property for a button directly on it, even in the designer. You can use a flat style button. And your type will have to be button.

you can do it like:

buttonName = "btn" + y.ToString() + x.ToString();
Button btn = this.Controls.Find(buttonName, true)[0] as Button;
btn.BackColor = System.Drawing.Color.Blue;
btn.FlatStyle = FlatStyle.Flat
btn.FlatAppearance.BorderColor = Color.Red;
btn.FlatAppearance.BorderSize = 1;

Unfortunately, this will only work on button with a FlatStyle.

Answer 2

you can use the flatAppearance.BorderColor

    btn.FlatAppearance.BorderColor = System.Drawing.Color.Blue;

Answer 3

I know that this question is asked for a long time ago ( at 2011 ), but I think my comment will useful for someone : without using FlatStyle, you can use ControlPaint.DrawBorder in Paint event of the button you want to change the border color

    private void btnName_Paint(object sender, PaintEventArgs e)
    {
        Button btn = (Button)sender;

        ControlPaint.DrawBorder(e.Graphics, btn.ClientRectangle,
                                Color.LightGreen, 1, ButtonBorderStyle.Solid,
                                Color.LightGreen, 1, ButtonBorderStyle.Solid,
                                Color.LightGreen, 1, ButtonBorderStyle.Solid,
                                Color.LightGreen, 1, ButtonBorderStyle.Solid
                                );
    }

According to Microsoft (link)

Applies to

.NET Framework

4.7.2, 4.7.1, 4.7, 4.6.2, 4.6.1, 4.6, 4.5.2, 4.5.1, 4.5, 4.0, 3.5, 3.0, 2.0, 1.1

Answer 4

Depending on your framework there is a new property called BorderColor

http://msdn.microsoft.com/en-us/library/system.windows.forms.flatbuttonappearance.bordercolor.aspx,

Have you checked that?

Also here is an example of something similar

Change border color of Windows Forms Control on focus