title: How can I display more results on a RichTextBox?
body: <p>I'm a beginner in C# so please be gentle to me .</p>
  
  <p>I'm having a problem trying to display more results in rich text box because it can only display one result at once. But I would like to display the next result when the radio buttons already being resetted and the previous result should also still in the rich text box. Below is my coding:</p>
  
  <pre><code>for(int i=0,i&lt;30;i++)
  {
    if(symptom1.Checked &amp;&amp; symptom2.Checked)
    {
       Result.Text="";
       Result.Text += "Your Disease is: "+"Meningiomas";
    }
  
    if(symptom7.Checked &amp;&amp; symptom8.Checked)
    {
       Result.Text="";
       Result.Text += "Your Disease is: "+"Pituitary Tumor";
    }
  }
  </code></pre>