Check out example codes for "object list to csv c#". It will help you in understanding the concepts better.

Code Example 1

private void SaveToCsv<T>(List<T> reportData, string path)
    var lines = new List<string>();
    IEnumerable<PropertyDescriptor> props = TypeDescriptor.GetProperties(typeof(T)).OfType<PropertyDescriptor>();
    var header = string.Join(",", props.ToList().Select(x => x.Name));
    var valueLines = reportData.Select(row => string.Join(",", header.Split(',').Select(a => row.GetType().GetProperty(a).GetValue(row, null))));
    File.WriteAllLines(path, lines.ToArray());

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