how to set backcolor for all textboxes in winform globally C#?

Question

how to set back color for all text boxes in win form globally? can we set it somewhere like in a global variable and use when needed? I need to set the back color of control in form_load from a global variable instead of writing

mytextbox1.BackColor = Color.Red;
mytextbox2.BackColor = Color.Red; 

Answer 1

 private void SetRedColorToTextBoxes()
 {
     Action<Control.ControlCollection> func = null;

     func = (controls) =>
         {
             foreach (Control control in controls)
                 if (control is TextBox)
                     (control as TextBox).BackColor = Color.Red;
                 else
                     func(control.Controls);
         };

     func(Controls);
 }

and call SetRedColorToTextBoxes() function in form load.

    private void YourForm_Load(object sender, EventArgs e)
    {
        SetRedColorToTextBoxes();
    }

Edit Add a .cs file and put the code there.

  class Helper
   {
    public void SetRedColorToTextBoxes(Form frm)
    {
        Action<Control.ControlCollection> func = null;

        func = (controls) =>
        {
            foreach (Control control in controls)
                if (control is TextBox)
                    (control as TextBox).BackColor = Color.Red;
                else
                    func(control.Controls);
        };

        func(frm.Controls);
    }
}

and call it your form load as :

 private void YourForm_Load(object sender, EventArgs e)
    {
        // this means instance of  currentform.
       (new Helper()).SetRedColorToTextBoxes(this);
    }

Answer 2

Can i make sure you are not looking for themes. Some third parties like devexpress gives option to design your own themes

Answer 3

作为对上述Arshad解决方案的略微更改，我还将使该方法能够实时进行着色：

public void SetRedColorToTextBoxes(Form frm, Color myColor)