Disable Editing in DataGridView+Winforms

// Method 1

private void dataGridView1_CellBeginEdit(object sender, DataGridViewCellCancelEventArgs e)
{
if (((DataGridView)sender).CurrentCell.ColumnIndex == 1)
e.Cancel = true;
}

//Method 2

private void dataGridView1_CellEnter(object sender, DataGridViewCellEventArgs e)
{
if(this.dataGridView1.CurrentCell.ColumnIndex==1)
this.dataGridView1.CurrentCell.Selected = false;
}

Setting Opacity of WinForm

public static void mSetOpacity(Form form)
{
form.Opacity = 0.05;
for(double i=0.20; i < 1; i+=0.20)
{
form.Opacity = System.Math.Round(i, 2);

System.Threading.Thread.Sleep(5);

}
}