String Formats For Decimal Values

txtFabricProcessingCost.Text = String.Format("{0:F2}", totalProcessCost);

txtFabricProcessingCost.Text = totalProcessCost.ToString("#0.00");

txtFabricProcessingCost.Text = totalProcessCost.ToString("N2");
txtFabricProcessingCost.Text = totalProcessCost.ToString("N3");

double v = 17688.65849;
double v2 = 0.15;
int x = 21;
string str = String.Format("{0:F2}", v); // 17688.66

str = String.Format("{0:N5}", v); //17,688.65849

str = String.Format("{0:e}", v); //1.768866e+004

str = String.Format("{0:r}", v); //17688.65849

str = String.Format("{0:p}", v2); //15.00%

str = String.Format("{0:X}", x); //15

str = String.Format("{0:D12}", x); //000000000021

str = String.Format("{0:C}", 189.99); //$189.99