title: Plot ‘DataGridView values’ to Chart (line or point)
body: <p>I'm c sharp beginner. (Sorry for poor english)</p>
  
  <p>Finally, I made it that load datagridview value from CSV through searching and inner-meditation.</p>
  
  <p>CSV Data included 4 column(date, x, y, z). Among them i want to extract ‘date’ and ‘z’, wish to plot TimeSeries. </p>
  
  <p><a href="https://i.stack.imgur.com/enZCq.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/enZCq.png" alt="enter image description here"></a></p>
  
  <p>Time interval is 5 mins. </p>
  
  <p>When i click button (Button2_Click), how can plot to Chart1 from datagridview? 
  It is not matter wether lines or points. </p>
  
  <p>Thank you so much for reading. </p>