Input string was not in correct format

[Nanda B H]

cmd.Parameter.A dd("@rate",SqlD bType.Decimal). Value=Convert.T oDecimal(grdvwp urorder.Rows[index].Cells[6].Text);


Here i am getting error that "Input string was not in correct format".
Please help me to sortout this error.

[India777]

What is the Datatype of @rate parameter in SqlQuery? Make Sure it is Decimal.