抛出错误“输入字符串格式不正确”？ C＃Windows窗体

Question

我试图读取.csv文件，但它抛出错误input string was not in correct format。这是我的.csv excel文件截图LINK

这里是

类

class DowStock 
{ 
    public string coName { get; set; } 
    public double coPrice { get; set; } 
    public double coChange { get; set; } 
    public decimal coChangePct { get; set; } 
    public long coVolume { get; set; } 
    public decimal coYTDchange { get; set; } 
} 

这里是表单代码

static DowStock SplitRow(string Row) { 
    DowStock rowResult = new DowStock(); 
    string[] splitRow = Row.Split(",".ToCharArray()); 
    rowResult.coName = splitRow[0]; 
    rowResult.coPrice = double.Parse(splitRow[1]); 
    rowResult.coChange = double.Parse(splitRow[2]); 
    rowResult.coChangePct = decimal.Parse(splitRow[3]); 
    rowResult.coVolume = long.Parse(splitRow[4]); 
    rowResult.coYTDchange = decimal.Parse(splitRow[5]); 
    return rowResult; 
} 

Answer 1

正如你可以看到，一些列的是具有####这是无法转换为Double值和导致异常的最佳选项是TryParse，如果转换失败，它将为您提供该特定类型的最小值或默认值。所以，我想建议你使用double.TryParse，Int64.TryParse和decimal.TryParse转换。

例如：让我们考虑rowResult.coPrice = double.Parse(splitRow[1]);获得这个值，我们可以使用如下：

double coPrice = 0.0; 
double.TryParse(splitRow[1], out coPrice); 
rowResult.coPrice = coPrice; 
// The value will be 0.0 if the input is not convertible or 
// else it will be populated with the required value 

这样你就可以从FormatException