How Can I Efficiently Read and Parse CSV Data in .NET Using TextFieldParser?

Reading CSV Data Using .NET

When dealing with comma-separated value (CSV) files in .NET, one option to consider is utilizing the Microsoft.VisualBasic.FileIO.TextFieldParser class. This class offers comprehensive functionality for parsing CSV data, alleviating the need for third-party components.

To leverage the TextFieldParser class, it's necessary to import the Microsoft.VisualBasic assembly. Once imported, a TextFieldParser object can be initialized, specifying the path to the CSV file.

Next, configure the parser's settings. Set the TextFieldType property to Delimited and define the delimiters used in the CSV file by setting the SetDelimiters property.

To iterate through the CSV rows, use a while loop that checks the EndOfData property. Within the loop, use the ReadFields method to retrieve the values for the current row.

Here's an example of how to implement this approach:

var parser = new Microsoft.VisualBasic.FileIO.TextFieldParser(file);
parser.TextFieldType = Microsoft.VisualBasic.FileIO.FieldType.Delimited;
parser.SetDelimiters(new string[] { ";" });

while (!parser.EndOfData)
{
    string[] row = parser.ReadFields();
    // Perform desired operations on the row data
}

By following these steps, you can efficiently read and parse CSV data using the TextFieldParser class, offering flexibility and customization options for your .NET applications.

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