Question

trying to run a function without putting it in the Main() when the program is run.
how do I start the new created function?
trying to call RunMix() in the Main() but get an error because of the lable1

namespace mixer 
{ 
    public partial class Form1 : Form 
    { 
        public Form1() 
        { 
            InitializeComponent(); 
        } 

        int i = 0; 

        public void RunMix() 
        { 
            while (i == 0) 
            { 
                label1.Text = knob1.Angle.ToString(); 
                Application.DoEvents(); 
            } 
        } 

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

Answer 1

Alright my first answer was completely off the topic because of your mysterious question. Now that you have updated it I have better – not complete – understanding of what do you mean.

Looking at code I guess what you are trying to do is to change the value of label when knob1 control’s angle changes. If knob1 is a control it should have a change event and you should change value of label1 inside knob1_change event handler. If knob1 doesn’t have any event – highly unlikely – then you should use a timer instead. Loop is simply a bad idea in your situation. Timer should work like this

Timer timer = new Timer();
public void RunMix(object sender, EventArgs e)
{
  label1.Text = knob1.Angle.ToString();            
}

private void Form1_Load(object sender, EventArgs e)
{
  timer.Interval = 100;
  timer.Tick += new EventHandler(RunMix);
  timer.Start();
}

Stop timer when form is closed or use activate/deactivate cycle depending upon your requirement.