datagrid updation

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C#3.0

C#

DataGridView

I want to stop enter key to go the next row rather I want it to go to next cell in a datagridview in C#.NET(3.5)

How I stop cursor to do that?
Here is the code:

private void dataGridView1_KeyUp(object sender, KeyEventArgs e)
{
    try
    {
        dataGridView1.Refresh();
        int Secondrowindex = Convert.ToInt32(dataGridView1.CurrentRow.Index);
        int rowcounter = dataGridView1.Rows.Count;
        int asd = Convert.ToInt32(dataGridView1.CurrentCell.ColumnIndex);
        if (asd <= 5 && Secondrowindex == rowcounter - 1)
        {
            if (e.KeyCode == Keys.Enter)
            {
                if (asd == 5)
                {
                    dataGridView1.CurrentCell = dataGridView1[dataGridView1.CurrentCell.ColumnIndex - 4, dataGridView1.CurrentRow.Index];
                }
                else if (asd == null)
                {
                }
                else
                {
                    string asew= dataGridView1.EditMode.ToString();
                    Console.WriteLine(dataGridView1.CurrentCell.EditedFormattedValue);
                    dataGridView1.CurrentCell = dataGridView1[dataGridView1.CurrentCell.ColumnIndex + 1, dataGridView1.CurrentRow.Index];
                }
            }
        }
        else if (asd == 5 && rowcounter == Secondrowindex + 1)
        {
            if (e.KeyCode == Keys.Enter)
            {
                dataGridView1.CurrentCell = dataGridView1[dataGridView1.CurrentCell.ColumnIndex, dataGridView1.CurrentCell.RowIndex + 1];
            }
        }
        else
        {
        }
    }
    catch (Exception gf)
    {
        Console.WriteLine(gf.StackTrace);
    }
}