C# read delimited file

Split delimiters, StringSplitOptions. WriteLine segment ; sepList. Post Reply. Similar topics. NET Framework. UserControl doesn't add to "My User Controls" tab automatically. Microsoft SQL Server. Best way to mess with tab order. Please tell me the best way of doing this You have to love that general utility classes are in Microsoft. Could you provide a quick example? Links aren't sufficient answers. If it breaks this response is useless to any googler.

I added a link for CSV writing, you can replace some constant strings with your preferred delimiter, and it should be ok. Reading is far more complicated than writing But writing CSV files which contain arbitrary strings is non-trivial. Remember escape sequences! Why would you recommend this over the one that comes with. UTF8; csvWriter. Wieslaw Olborski Wieslaw Olborski 7 7 bronze badges. Qwertie Qwertie AllenG AllenG 7, 26 26 silver badges 38 38 bronze badges.

Your split code is wrong, as you may have the demliniator in a quoted string. Jonathan Allen: Yes, indeed you may. It wasn't designed to be the full solution I get an error when using your code. The line 'while sr. Peek ' is throwing an error "Cannot implicitly convert type 'int' to 'bool'" I am confused.

I thought that integer value 0 evaluates to false in a Boolean, and all other integer values evaluate as true? No; Properties. Code: About Box frmAbout. The about box code is not important and is not described in this document. That wraps up the sum of the code needed to drive the CSV Editor application. With the code provided, it is possible construct a viable CSV editor and to build a schema on the fly that may be used to connect to and interact with a delimited text file, regardless of format.

While this article was written to demonstrate an approach to working with delimited text files, you might need to connect to only one particular type of delimited text file; the information contained in this document could be used to build a canned scheme. The download includes examples of each delimited file type comma delimited, tab delimited, fixed width, and custom character in this case pipe delimited with and without headers.

The files are named such that you can figure out the delimiter type and whether or not it includes a header row. To open any delimited text file, create a schema definition that works with that file type and save it using the schema definition dialog prior to opening it. Looking at the Schema dialog Schema Generator shown in the following figure, start by setting the delimiter type.

If the delimiter is a custom character, the delimiter text box will enable and you can enter the delimiter there. If the file you are trying to open uses the first row to define the column header, check the box below the delimiter type selection. You can then begin to add rows to the definition. For each row, enter a column name and a JET data type you can use text for all of the fields if you want to or you can set them to the correct type.

If the delimiter type is fixed width; you will also need to set the column width value before adding the column definition to the schema. Once all of the columns have been added, you can save the schema definition using the Save button at the bottom of the dialog. After saving, when you return to the editor form, you can open any CSV file that matches the schema definition. When a file is opened, the editor code will look at the schema definition and create a schema.

View All. Working with Delimited Text Files in C. Scott Lysle Updated date Nov 04, Count; switch sdef. TypeData; if s. ToString ; sb. Figure 6: Defining a Schema. Next Recommended Reading. Net Core 6. Create A. Understanding Thread Starvation in. NET Core Applications. Exploring Numeric Streams In Java. Improve this question.

What else are you looking for exactly? Are you looking for opinions or are you having trouble with a particular part of the problem? Jonesy I don't know this part: " grab the columns that you need" Also what's an efficient way of reading the file that doesn't crash or go out of memory if file is big? Add a comment. Active Oldest Votes. NewRow ; datarow. Split delimiter ; datatable. Write column. ColumnName ; Console. Write " " ; Console. Improve this answer. Or looks good to you and I go and use it?

I'm curious why you went with this answer over Sudhakar's? In my opinion it's much more simple — Jonesopolis. Jonesy correct, I am still evaluating them all.

Right now not sure why this answer didn't keep the order of the records it prints the same as what was in the input file Jonesy Tried that too, it crashes. DevWannaBe - I don't know what you meant by order of records not maintained. I updated the code to display the row index from the input file. I hope this helps you see what the order of each row is in the input file.

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