_item = new OutTYonetimOzet();
_item.Banka = Convert.ToDecimal(" ");
liste.Add(_item);
There is a list called liste. In List item Banka named element is decimal value. I want to show the empty string when I show it on the screen. But this code is getting an error that can not be cast. What is the problem.
Error message is:
Input string was not in a correct format.
There's no such thing as a "blank decimal". decimal cannot have a value that is "blank" - it always has a numeric value. Convert.ToDecimal(" ") is nonsensical - there is nothing it can return that makes sense.
You could try using a Nullable<decimal> (aka decimal?) perhaps; i.e.
public decimal? Banka {get;set;}
and
_item.Banka = null;
You can also use the decimal.TryParse instead of Convert. With this technique you can check if the string is valid.
_item = new OutTYonetimOzet();
decimal val = decimal.MinValue;
if (decimal.TryParse(" ", out val))
{
_item.Banka = val;
}
else
{
//your default goes here
_item.Banka = 0;
}
liste.Add(_item);
and as Mark suggested I would use Nullable<decimal> and use null as default value.
0 where a "blank" was wanted.
decimalvalue do you expect that to parse to? It sounds like you probably want to useNullable<decimal>