system.FormatExcerption..how解决这个问题？ [英] system.FormatExcerption..how to solve this?

问题描述

if (string.IsNullOrEmpty(profileList[i].CurrencyID))
          { boatProfile.CurrencyID = 0; }
          else
 { boatProfile.CurrencyID=int.Parse((profileList[i].CurrencyID)); }

crrencyID被声明为aspublic int？ currencyID ..value in（profileList [i] .CurrencyID =Dkk

在else部分，它显示错误..int.Parse（（profileList [i] .CurrencyID））扔了一个sysytem.formatException

crrencyID is declared aspublic int? currencyID ..value in (profileList[i].CurrencyID="Dkk"
In the else part it is showing the error..""int.Parse((profileList[i].CurrencyID)) threw a sysytem.formatException""

推荐答案

使用 TryParse [ ^ ]

use TryParse[^]

else
        {
            boatProfile.CurrencyID = 0;
            int.TryParse(profileList[i].CurrencyID, out boatProfile.CurrencyID);
        }

int j;
bool result = Int32.TryParse("-105", out j);
if (true == result)
    Console.WriteLine(j);
else
    Console.WriteLine("String could not be parsed.");

参考： http://msdn.microsoft.com/en-us/library/bb397679.aspx [ ^ ]



这个可以帮忙。

Refer:http://msdn.microsoft.com/en-us/library/bb397679.aspx[^]

This may help.

尝试这样转换： -

try to convert like this:-

boatProfile.CurrencyID=Convert.ToInt16((profileList[i].CurrencyID));

您尝试将数字字符串转换为数字数据类型，代码显示示例。

You attempt to cast a numeric string to a numeric data type, following code shows example.

string strInput = "10";
int intResult = 0;
try {
    intResult = Convert.ToInt16(strInput);
}
catch (Exception ex) {
    MessageBox.Show(("Error: " + ex.Message));
}

希望有帮助......

hope it helps...

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