condition to check mousr rigt click

You'll need to add the same MouseDown event handler to every button on the form, including those on container controls such as panels, to detect whether it's been right-clicked or not.

This could be done as follows:

        private void Form1_Load(object sender, EventArgs e)
        {
            HandleButtonMouseDownEvents(this);
        }

        private void HandleButtonMouseDownEvents(Control cc)
        {
            foreach (Control c in cc.Controls)
            {
                if (c is Button)
                {
                    Button b = (Button)c;
                    b.MouseDown += button_MouseDown;
                }
                else if (c.HasChildren)
                {
                    HandleButtonMouseDownEvents(c);
                }
            }
        }

        // add this eventhandler manually
        private void button_MouseDown(object sender, MouseEventArgs e)
        {
            if ((text == "Done" || string.IsNullOrWhiteSpace(text)) && e.Button == MouseButtons.Right)
            {
                progressBar1.Visible = true;
            }
            else
            {
                progressBar1.Visible = false;
            }
        }

If its a windows application, you can handle the mouseclick event and check if the clicked button was a right button/left button or center button. Please let us know if it is a Windows/Web Application