DataGridView Cell

See more:

C#

Hello, I need to know the selected cell location so that i can place the textbox on it.
Iam able to place the textbox on the selected cell with following code

for(r=0;r<=row-2;r++)
{
txtValueChange.Left = dataGridView1.Left + dataGridView1.ColumnHeadersHeight + 8 + dataGridView1.Columns[0].Width;
if (!dataGridView1.CurrentRow.IsNewRow)
{
for (int j = 1; j<= 7; j++)
{
if (dataGridView1.Rows[r].Cells[j].Selected == true)
{
txtValueChange.Width = dataGridView1.Columns[j].Width;
txtValueChange.Left += dataGridView1.Columns[j].Width;
}
}

txtValueChange.Top += dataGridView1.RowTemplate.Height;
lbRateID.Top += dataGridView1.RowTemplate.Height;
}

But the issue is when i scroll the horizontal scroller, few columns get hide and the textbox left location automatically differs. Because

txtValueChange.Left += dataGridView1.Columns[j].Width;

I can able to solve this issue if i come to know the selected cells location. Or if there exists any alternate solution pls let me know...