How to check empty and null cells in datagridview using C#

Question

i am trying to check the datagridview cells for empty and null value... but i can not do it right...

for (int i = 0; i < dataGridView1.Rows.Count; i++)
{
         


        

Answer 1

if (String.IsNullOrEmpty(dataGridView1.Rows[i].Cells[3].Value as String))
{
    MessageBox.Show("cell is empty");
    return;
}

Add as String, it works for me.