Change Background Color using ColorDialog in C#

[jasontsullins]

Today in C#, I will teach you how to create a program that changes background color using ColorDialog in C#.

Now, let's start this Color Dialog tutorial!

1. Let's start with creating a Windows Form Application for this tutorial by following the following steps in Microsoft Visual Studio: Go to File, click New Project, and choose Windows Application.

2. Next, add only one Button named Button1 and labeled it as "Change Background Color". Next, put a ColorDialog as a dialog box control in your toolbox.

3. Add ColorDialog from the toolbox:

4. Now put add this code for your code module. This code is for Button1_Click and this will trigger to open the colordialog and after choosing the color, it will be the color of your background in the Form.

1. public
   
   void
   
   Button1_Click(
   
   System
   
   .
   
   Object
   
   sender, System
   
   .
   
   EventArgs
   
   e)
   
2. {
   
3. ColorDialog1.
   
   ShowDialog
   
   (
   
   )
   
   ;
   
4. this
   
   .
   
   BackColor
   
   =
   
   ColorDialog1.
   
   Color
   
   ;
   
5. }
   

ColorDialog1.

ShowDialog

(

)

- is our syntax for opening the color dialog box. It will look like this one when you click the button.

When picking or choosing a color from the color dialog box, the background color of the from will change as we have the code Me.

BackColor

=

ColorDialog1.

Color

. This means that the value of the color you choose in you colordialog will be equal to the background color of your form.

Now, click the Ok from your ColorDialog. It will change the back color of your form like this:

Full source code:

1. using
   
   System.Diagnostics
   
   ;
   
2. using
   
   System
   
   ;
   
3. using
   
   System.Windows.Forms
   
   ;
   
4. using
   
   System.Collections
   
   ;
   
5. using
   
   System.Drawing
   
   ;
   
6. using
   
   Microsoft.VisualBasic
   
   ;
   
7. using
   
   System.Data
   
   ;
   
8. using
   
   System.Collections.Generic
   
   ;
   
9. 
   
10. 
    
11. 
    
12. namespace
    
    ChangeBackground_Color
    
13. {
    
14. public
    
    partial
    
    class
    
    Form1
    
15. {
    
16. public
    
    Form1(
    
    )
    
17. {
    
18. InitializeComponent(
    
    )
    
    ;
    
19. 
    
20. }
    
21. 
    
22. 
    
23. public
    
    void
    
    Button1_Click(
    
    System
    
    .
    
    Object
    
    sender, System
    
    .
    
    EventArgs
    
    e)
    
24. {
    
25. ColorDialog1.
    
    ShowDialog
    
    (
    
    )
    
    ;
    
26. this
    
    .
    
    BackColor
    
    =
    
    ColorDialog1.
    
    Color
    
    ;
    
27. }
    
28. }
    
29. 
    
30. }
    

Press F5 to run the program.

Best Regards,

Engr. Lyndon Bermoy
IT Instructor/System Developer/Android Developer/Freelance Programmer

If you have some queries, feel free to contact the number or e-mail below.
Mobile: 09488225971
Landline: 826-9296
E-mail:[email protected]

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