How to control the amount of rows in a datagridview in C# windows form

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Good day Please i have a datagridview and i use it enter 4 informations at once but dont want the datagridview to exceed more than 4 rows (i dont want the user to enter more than 4 rows at once).If the rows are more than four the datagridview should not extend any longer

What I have tried:

if (dataGridView1.Rows.Count >= 4)
            {
                MessageBox.Show("you cant exceed this number");
            }

Posted 19-Oct-17 13:11pm

akinwunmi

Updated 19-Oct-17 17:18pm

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PIEBALDconsult 19-Oct-17 20:37pm

I doubt you want to use a datagridview at all. You ought to re-think.

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Karthik_Mahalingam · Answer 1 · 2017-10-19T17:18:00

use DataGridView.UserAddedRow Event (System.Windows.Forms)[^]

private void dataGridView1_UserAddedRow(object sender, DataGridViewRowEventArgs e)
       {
           if (dataGridView1.Rows.Count > 4)
           {
               dataGridView1.AllowUserToAddRows = false;
               MessageBox.Show("you cant exceed this number");
           }
           else
           {
               dataGridView1.AllowUserToAddRows = true;

           }

       }