title: How to check if a datagridview cell is empty through button click in vb.net?
body: <p>I need help when filtering or checking if either one or more datagridview cell is null or not before saving the data. I have tried several codes but there is always an error. Below is the picture.</p>
  
  <p><img src="https://i.stack.imgur.com/jXSBp.jpg" alt="enter image description here"></p>
  
  <p>Thanks in advance.</p>