Question

i am using .net win forms i need to set some common properties globally to my win forms like css in web application

ex

form background color=red 
button width =100
Text box width=200
font family=arial

how to do this?

Answer 1

how about create a base form that all the other forms inherit.
On the base form you can set the common look and feel.
then if it is necessary to overwrite the common properties you can do so.

EDIT
something like this for the base form.

public partial class BaseForm : Form
{
    private Font _font = new Font("Arial", 10);
    private Color _backColor = Color.Red;
    public BaseForm()
    {
        InitializeComponent();
    }

    public override Font Font
    {
        get { return _font; }
        set { _font = value; }
    }
    public override Color BackColor
    {
        get { return _backColor; }
        set { _backColor = value; }
    }
}

and this for the form that you want to display

public partial class Form1 : BaseForm
{
    public Form1()
    {
        InitializeComponent();
    }
}