title: Automatic label text update in C#
body: <p>If I set the value of a string in one form and then display in label on another form by clicking a "update" button on the second form. This part works. </p>
  
  <p>I would like to know how I can make the label update it's text value after the first form closes. </p>
  
  <p>If I try doing with:</p>
  
  <p>public static void Subject_select()
          {</p>
  
  <pre><code>    L_Subject.Text = Global.Subject;
  
      }
  </code></pre>
  
  <p>And then running this with:</p>
  
  <pre><code>    msinForm.Subject_select();
  </code></pre>
  
  <p>Then it throws the error:
  An object reference is required for the non-static field,method, or property 'app1.mainForm.L_Subject'</p>