C＃decimal.Parse（）奇怪的FormatException

Question

There is MyDataSet myDataSet with MyTable with column string MyNumber (names changed). Then a row is added to the table (existing code):

decimal d = GetSum();
myDataSet.MyTable.AddMyTableRow(d.ToString("F2"));

Now I have to get that decimal number. But it throws FormatException when I try

decimal.Parse(myDataSet.MyTable[0].MyNumber);
// or
decimal.Parse(myDataSet.MyTable[0].MyNumber, CultureInfo.InvariantCulture);
//or
decimal.Parse(myDataSet.MyTable[0].MyNumber, CultureInfo.CurrentCulture)
//or
anything else..

Answer 1

I had a similar issue a few days back. This however was with my ModelBinding in a MVC project. I had to overwrite the class responsible for binding decimal values to model variables.

Try to replace the full stop (.) with a comma(,)

Answer 2

I would guess that a FormatException suggests that you are not putting a string value into the Decimal.Parse method.

http://msdn.microsoft.com/en-us/library/cafs243z.aspx

The MSDN suggests that:

FormatException = s is not in the correct format.

From the looks you are accessing the column itself rather than the data contained in it.

Answer 3

我通过为这些数字创建额外的十进制列来解决这个问题