I am new to C#, and I wrote a little test application to see if I understand how to read in a csv file.
I created a class to handle the data received, but my code will not compile : An unhandled exception of type 'System.FormatException' occurred in mscorlib.dll
.
Code below:
static void Main(string[] args)
{
var fileName = @"C:\Sample.csv";
var file = new FileInfo(fileName);
if (file.Exists)
{
List<Company> comp = new List<Company>();
using (var reader = new StreamReader(File.OpenRead(fileName)))
{
while (!reader.EndOfStream)
{
var line = reader.ReadLine();
var values = line.Split(',');
var companyobj = new Company()
{
Id = Convert.ToInt32(values[0]),
CompanyCode = values[1]
};
comp.Add(companyobj);
foreach (Company c in comp)
{
Console.WriteLine(c.Id + " "+c.CompanyCode);
}
}
}
}
}
This is most likely happening on the following line:
Id = Convert.ToInt32(values[0]),
Since values[0]
is probably not a valid int. Possible causes could be
.split
is returning a blank string and failing when trying to convert. I would says #2 is your more likely culprit.
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