Format datagridview cell for decimal number

Question

Hi,

 

I want to display decimal number in datagridview  lkie this format

 

1234.78

89.76

 

but,when i am using this

 

dataGridView1.Columns[8].DefaultCellStyle.Format = "n2";

 

it's showing

 

12,34.78

 

I don't need comma, plz suggest me something