linq tocsv by Jason

1. LINQ To CSV
Jason

2. CSV
• A comma-separated values (CSV) (also sometimes
called character-separated values, because the separator
character does not have to be a comma) file
stores tabular data (numbers and text) in plain-text form

3. LINQ To CSV -Quick Start

4. Reading from a file
• Create a CsvFileDescription object
• Create a CsvContext object

5. Reading from a file
• Read the file into an IEnumerable<T> using
the CsvContext object's Read method

6. Writing to a file
• Create a CsvFileDescription object
• Create a CsvContext object

7. Writing to a file
• Make sure the data is stored in an object that
implements IEnumerable<T>
• Invoke the Write method exposed by the CsvContext object to
write the contents of your IEnumerable<T> to a file

8. CsvContext.Read Overloads

9. CsvColumn Attribute
•
•
•
•
Name
CanBeNull
OutputFormat
FieldIndex

10. Name
• Type
• string
• Default
• Name of the field or property
• Applies to
• Reading and Writing

11. CanBeNull
• Type
• bool
• Default
• true
• Applies to
• Reading only

12. OutputFormat
• Type
• string
• Default
• "G"
• Applies to
• Writing only

13. FieldIndex
• Type
• Int
• Default
• Int32.MaxValue
• Applies to
• Reading and Writing

14. CsvFileDescription
•
•
•
•
•
•
SeparatorChar
QuoteAllFields
FirstLineHasColumnNames
TextEncoding
DetectEncodingFromByteOrderMarks
MaximumNbrExceptions

15. SeparatorChar
• Type
• char
• Default
• ','
• Applies to
• Reading and Writing

16. QuoteAllFields
• Type
• bool
• Default
• false
• Applies to
• Writing only

17. FirstLineHasColumnNames
• Type
• bool
• Default
• true
• Applies to
• Reading and Writing

18. EnforceCsvColumnAttribute
• Type
• bool
• Default
• false
• Applies to
• Reading and Writing

19. FileCultureName
• Type
• string
• Default
• current system setting
• Applies to
• Reading and Writing

20. TextEncoding
• Type
• Encoding
• Default
• Encoding.UTF8
• Applies to
• Reading and Writing

21. DetectEncodingFromByteOrderMarks
• Type
• bool
• Default
• true
• Applies to
• Reading only

22. Reference
• LINQ to CSV Library
• http://www.codeproject.com/Articles/25133/LINQ-to-CSV-library