Programmatically set the auto generated row of dgv

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C#

Hi Good day,

I want to programmatically set the auto generated row of dgv using allowusertoaddrows property, so initially here is my code as shown below:

private void dataGridView1_CellEndEdit(object sender, DataGridViewCellEventArgs e)
{
    try
    {
        if (dataGridView1.Rows.Count > 1)
        {
            if (string.IsNullOrEmpty(dataGridView1.CurrentRow.Cells[Column1.Name].Value.ToString()))
            {
                dataGridView1.AllowUserToAddRows = false;
            }
            else
            {
                dataGridView1.AllowUserToAddRows = true;
            }
        }
    }
    catch (NullReferenceException) { }
    catch (InvalidOperationException) { }
    }

So, I want to prevent from automatically adding row of dgv if column1 of current row is empty, even though other columns at that row was modified. So i try that code above but no luck, then i try again another code using editingcontrolshowing as shown below:

private void dataGridView1_EditingControlShowing(object sender, DataGridViewEditingControlShowingEventArgs e)
        {
            if (dataGridView1.CurrentCell.ColumnIndex == Column1.Index)
            {
                if (e.Control is TextBox)
                {
                    txtCol1 = e.Control as TextBox;
                    txtCol1.TextChanged -= new EventHandler(txtCol1_TextChanged);
                    txtCol1.TextChanged += new EventHandler(txtCol1_TextChanged);
                }
            }
            else if (dataGridView1.CurrentCell.ColumnIndex == Column2.Index)
            {
                if (e.Control is TextBox)
                {
                    txtCol2 = e.Control as TextBox;
                    txtCol2.TextChanged -= new EventHandler(txtCol2_TextChanged);
                    txtCol2.TextChanged += new EventHandler(txtCol2_TextChanged);
                }
            }
            //else if... textbox event for another column
        }

        private void txtCol2_TextChanged(object sender, EventArgs e)
        {
            if (dataGridView1.CurrentCell.ColumnIndex == Column2.Index)
            {
                try
                {
                    if (dataGridView1.CurrentRow.Cells[Column1.Name].Value.ToString() == "")
                    {
                        dataGridView1.AllowUserToAddRows = false;
                    }
                    else
                    {
                        dataGridView1.AllowUserToAddRows = true;
                    }
                }
                catch (NullReferenceException) { }
                catch (InvalidOperationException) { }
            }
        }

        private void txtCol1_TextChanged(object sender, EventArgs e)
        {
            if (dataGridView1.CurrentCell.ColumnIndex == Column1.Index)
            {
                if (txtCol1.Text == "")
                {
                    dataGridView1.AllowUserToAddRows = false;
                }
                else
                {
                    dataGridView1.AllowUserToAddRows = true;
                }
            }
        }

but still this code is not functioning. I need help for this problem. Your help will be greatly appreciated.

Thank you...

H123ardz