ColorDialog in C#

[torqman]

In this tutorial, I will teach you how to use a ColorDialog in C#. This method has the ability to select a color in a textbox. It shows a form with different colors that you can select to change your text and background color. See the procedure below to see how it works.

Creating Application

Step 1

Open Microsoft Visual Studio 2015 and create a new windows form application for c#.

Step 2

Add a Textbox, button and a colordialog into the form. Do the form just like shown below.

Step 3

Press F7 to open the code editor. In the code editor, create a method for changing the colors of your text and background inside the textbox.

1. 
   
2. private
   
   void
   
   change_forecolor(
   
   )
   
3. {
   
4. // 'SET THE COLORS THAT YOU HAVE SELECTED TO MATCH
   
5. // 'THE CURRENTLY COLORS THAT WAS USED IN THE RICHTEXTBOX.
   
6. colorDialog1.
   
   Color
   
   =
   
   richTextBox1.
   
   ForeColor
   
   ;
   
7. // 'IT ALLOWS YOU TO CREATE CUSTOM COLORS.
   
8. colorDialog1.
   
   AllowFullOpen
   
   =
   
   true
   
   ;
   
9. 
   
10. // 'THE BASIC COLORS WILL DISPLAY.
    
11. colorDialog1.
    
    AnyColor
    
    =
    
    true
    
    ;
    
12. 
    
13. // 'THE DIALOG BOX WILL DISPLAY WITH THE CUSTOM COLOR SETTINGS, SIDE OPEN, AS WELL.
    
14. colorDialog1.
    
    FullOpen
    
    =
    
    false
    
    ;
    
15. 
    
16. // 'SOLID COLORS ARE ALLOWED.
    
17. colorDialog1.
    
    SolidColorOnly
    
    =
    
    true
    
    ;
    
18. 
    
19. if
    
    (
    
    colorDialog1.
    
    ShowDialog
    
    (
    
    )
    
    ==
    
    DialogResult.
    
    OK
    
    )
    
20. {
    
21. richTextBox1.
    
    ForeColor
    
    =
    
    colorDialog1.
    
    Color
    
    ;
    
22. }
    
23. 
    
24. //'RESET ALL THE COLORS IN THE DIALOG BOX.
    
25. colorDialog1.
    
    Reset
    
    (
    
    )
    
    ;
    
26. 
    
27. 
    
28. }
    
29. 
    
30. private
    
    void
    
    background_color(
    
    )
    
31. {
    
32. // 'SET THE COLORS THAT YOU HAVE SELECTED TO MATCH
    
33. // 'THE CURRENTLY COLORS THAT WAS USED IN THE RICHTEXTBOX.
    
34. colorDialog1.
    
    Color
    
    =
    
    richTextBox1.
    
    BackColor
    
    ;
    
35. 
    
36. // 'IT ALLOWS YOU TO CREATE CUSTOM COLORS.
    
37. colorDialog1.
    
    AllowFullOpen
    
    =
    
    true
    
    ;
    
38. 
    
39. // 'THE BASIC COLORS WILL DISPLAY.
    
40. colorDialog1.
    
    AnyColor
    
    =
    
    true
    
    ;
    
41. // 'THE DIALOG BOX WILL DISPLAY WITH THE CUSTOM COLOR SETTINGS, SIDE OPEN, AS WELL.
    
42. colorDialog1.
    
    FullOpen
    
    =
    
    false
    
    ;
    
43. // 'SOLID COLORS ARE ALLOWED.
    
44. colorDialog1.
    
    SolidColorOnly
    
    =
    
    true
    
    ;
    
45. 
    
46. if
    
    (
    
    colorDialog1.
    
    ShowDialog
    
    (
    
    )
    
    ==
    
    DialogResult.
    
    OK
    
    )
    
47. {
    
48. richTextBox1.
    
    BackColor
    
    =
    
    colorDialog1.
    
    Color
    
    ;
    
49. }
    
50. // 'RESET ALL THE COLORS IN THE DIALOG BOX.
    
51. colorDialog1.
    
    Reset
    
    (
    
    )
    
    ;
    
52. 
    
53. }
    

Step 4

Write the following code to execute the method that you have created when the button is clicked.

1. 
   
2. private
   
   void
   
   button1_Click(
   
   object
   
   sender, EventArgs e)
   
3. {
   
4. change_forecolor(
   
   )
   
   ;
   
5. }
   
6. 
   
7. private
   
   void
   
   button2_Click(
   
   object
   
   sender, EventArgs e)
   
8. {
   
9. background_color(
   
   )
   
   ;
   
10. }
    

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