I'm writing a simple import application and need to read a CSV file, show result in a DataGrid
and show corrupted lines of the CSV file in another grid. For example, show the lines that are shorter than 5 values in another grid. I'm trying to do that like this:
StreamReader sr = new StreamReader(FilePath);
importingData = new Account();
string line;
string[] row = new string [5];
while ((line = sr.ReadLine()) != null)
{
row = line.Split(',');
importingData.Add(new Transaction
{
Date = DateTime.Parse(row[0]),
Reference = row[1],
Description = row[2],
Amount = decimal.Parse(row[3]),
Category = (Category)Enum.Parse(typeof(Category), row[4])
});
}
but it's very difficult to operate on arrays in this case. Is there a better way to split the values?
Don't reinvent the wheel. Take advantage of what's already in .NET BCL.
Microsoft.VisualBasic
(yes, it says VisualBasic but it works in C# just as well - remember that at the end it is all just IL)Microsoft.VisualBasic.FileIO.TextFieldParser
class to parse CSV fileHere is the sample code:
using (TextFieldParser parser = new TextFieldParser(@"c:\temp\test.csv"))
{
parser.TextFieldType = FieldType.Delimited;
parser.SetDelimiters(",");
while (!parser.EndOfData)
{
//Processing row
string[] fields = parser.ReadFields();
foreach (string field in fields)
{
//TODO: Process field
}
}
}
It works great for me in my C# projects.
Here are some more links/informations: