How to display the before any row

Question

Hi,

 

I have a datagridview with five records.  

 

ID    Name    Salary

1      Samira   1.000,00

2      Idia        5.000,00

3      Wassa   2.000,00

4      Sheton   2.300,00

5      Elija       4.000,00 

 

When I want to display the Id number 3 on my textboxes I do this: 

private void dgvTest_CellClick(object sender, DataGridViewCellEventArgs e)

{ 

if (e.RowIndex >= 0)

{

DataGridViewRow row = this.dgvTest.Rows[e.RowIndex];

if (dgvTest != null)

 

lblID.Text = row.Cells["id"].Value.ToString();

txtName.Text = row.Cells["name"].Value.ToString();

txtSalary.Text = row.Cells["salary"].Value.ToString(); 

 

But the problem is how can I display the before one record selected. Mean to show the ID number 2 clicking on ID number 3. 

I can click on ID number 5 but I want to be displayed on my textboxes the ID number 4.