How to use variables in form.designer.cs

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hi,
i try to create global color scheme ,for all forms in the project. and instead of repeat the color , font ,...

ex:-

this.gridView2.Appearance.SelectedRow.BackColor = ((System.Drawing.Color)(resources.GetObject("gridView2.Appearance.SelectedRow.BackColor")));

i want to use :

this.gridView2.Appearance.SelectedRow.BackColor = projectColors.BackColor;

What I have tried:

i create a class to define all the used colors :

public static class ProjectColors
   {

       // gridcontrol



       // main color
       public static Color ChildFormBG = Color.FromArgb(248, 248, 248);

       public static Color PrimaryNormal = Color.FromArgb(48, 65, 75);
       public static Color PrimaryHover = Color.FromArgb(74, 97, 111);

       public static Color SecondryNormal = Color.FromArgb(19, 133, 214);
       public static Color SecondryHover = Color.FromArgb(60, 155, 222);


       // msgs
       public static Color ErrorNormal = Color.FromArgb(246, 86, 86);
       public static Color ErrorHover = Color.FromArgb(239, 49, 49);

       public static Color WarrningNormal = Color.FromArgb(255, 162, 52);
       public static Color WarrningHover = Color.FromArgb(248, 191, 51);

       public static Color SuccessNormal = Color.FromArgb(80, 184, 66);
       public static Color SuccessHover = Color.FromArgb(114, 195, 66);

       public static Color InfoNormal = Color.FromArgb(0, 174, 239);
       public static Color InfoHover = Color.FromArgb(0, 174, 239);

       public static Color NoteNormal = Color.FromArgb(248, 181, 51);
       public static Color NoteHover = Color.FromArgb(248, 181, 51);


       // form controls
       public static Color BorderNormal = Color.FromArgb(224, 224, 224);
       public static Color BorderFocused = Color.Silver;

       // buttons

   }

but whene i try the variable in the form.Designer.cs

this.gridView2.Appearance.SelectedRow.BackColor = projectColors.BackColor;

it changed automatically to :

this.gridView2.Appearance.SelectedRow.BackColor = ((System.Drawing.Color)(resources.GetObject("gridView2.Appearance.SelectedRow.BackColor")));

and some times the form can't loaded.

there are any other suggestions?

Posted 17-Mar-20 8:54am

Golden Basim

Updated 17-Mar-20 9:02am

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2 solutions

Solution 2

If you look closely, you will see the text:

C#

/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()

You should not be modifying the designer.cs file manually - and if you do, expect "this form could not be loaded" errors.

Instead, create a new form derived from Form:

C#

public partial class SkinnedForm : Form
   {
   ...
   }

And put your colour changes in the constructor of that class.
Then derive all your other forms from SkinnedForm instead of directly from the Form class.

That way, all the forms will contain everything from a Form, plus your colour code automatically.

Ideally, SkinnedForm would be an abstract class, but the VS designer can't cope with that well so just make sure you don't instantiate it yourself.

Posted 17-Mar-20 9:03am

OriginalGriff

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phil.o · Accepted Answer · 2020-03-17T09:00:00

You shouldn't touch the Form.Designer.cs file at all. It is auto-generated by the designer, and any customization you do in it is likely to be lost next time the designer saves it.

What you can do is create a method in Form.cs file, dealing with all your customizations; and call this method from the constructor, just after the call to InitializeComponent().

C#

public class MyForm : Form
{
   public MyForm()
   {
      InitializeComponent();
      ApplyTemplate();
   }

   private void ApplyTemplate()
   {
      this.gridView2.Appearance.SelectedRow.BackColor = ProjectColors.BackColor;
      // etc.
   }
}