Code Snippet
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
DataTable dt = new DataTable();
dt.Columns.Add("abc");
dt.Columns.Add("bcd",typeof(float));
dt.Rows.Add("aaa", 120.0);
dt.Rows.Add("bbb", 128.10);
dataGridView1.CellFormatting += new DataGridViewCellFormattingEventHandler(dataGridView1_CellFormatting);
dataGridView1.DataSource = dt;
}
void dataGridView1_CellFormatting(object sender, DataGridViewCellFormattingEventArgs e)
{
if (e.ColumnIndex == 1)
{
e.Value = string.Format("{0:F2}", e.Value);
}
}