Shortest way to save DataTable to Textfile

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I just found a few answers for this, but found them all horribly long with lots of iterations, so I came up with my own solution:

  1. Convert table to string:

    string myTableAsString = 
        String.Join(Environment.NewLine, myDataTable.Rows.Cast<DataRow>().
            Select(r => r.ItemArray).ToArray().
                Select(x => String.Join("\t", x.Cast<string>())));
  2. Then simply save string to text file, for example:

    StreamWriter myFile = new StreamWriter("fileName.txt");

Is there a shorter / better way?

You have your DataTable named as myDataTable, you can add it to DataSet as:

var dataSet = new DataSet();

// Write dataset to xml file or stream

And you can also read from xml file or stream:


[Solved] How to write datatable result in textfile, Hi, This is easy. I have given you a Example. Hide Expand Copy Code. public static void WriteDataToFile(DataTable submittedDataTable,  read data from textfile ,calculate required parameter by each row and store result in another textfile. write an Array in textfile. removing stopwords from textfile.

@Leonardo sorry but i can 't comment so i post.

Sometimes you can ask the dataset and then work with it. Like this:

foreach (DataRow row in ds.Tables[0].Rows)
    foreach (object item in row.ItemArray)
        myStreamWriter.Write((string)item + "\t");

That 's another way but i don 't know which 'll give you a better metric.

Export DataTable To CSV In C#, Learn how to export a DataTable to a Comma Separated File (CSV) file using Another use of a CSV file is to directly open the file in Excel and then the data Learn here about extension methods, Extension Methods in C#. Quickest way to save massive amount of lines to text file in c# Tag: c# , save Im currently programming a program which needs to save multiple megabytes worth of data to text files.

If you consider XML as text you can do: myDatatable.WriteXml("mydata.xml") and myDatatable.ReadXml("mydata.xml")

DataTable.WriteXml Method (System.Data), TextWriter. To save the data for the table and all its descendants, set the writeHierarchy parameter to true . Writes the current contents of the DataTable as XML using the specified file. WriteXml(String, XmlWriteMode, Boolean) Note that the same is true for the ReadXml and ReadXmlSchema methods, respectively. Because most of the data that is held by a C# application at runtime is in the form of objects, it is convenient to be able to save and load objects to file directly. Such capability is dubbed object serialization , and like many other programming languages, C# has the facilities to perform object serialization for developers.

You get an error unless you save it with the schema:

myDataTable.WriteXml("myXmlPath.xml", XmlWriteMode.WriteSchema);

There is more info on saving/loading with schema here: DataTable does not support schema inference from Xml.?

Preparing Data for Analysis with JMP, files. Data originally stored by other statistical software applications such as SPSS also be imported, or alternatively can be saved in Excel or text formats for transfer. we'll briefly review some of the ways that you can save a JMP data table for use demonstrate methods to convert a single data file into a JMP data table. I'm not sure what you want to do. Do you want to read the -file- and insert the data into a database, or do you want to read the -database- and write the data into a file? I'm asking this because you say you want to extract data from a file, but your code sample appears like your writing to a file – Ricardo Appleton Dec 31 '13 at 17:33

Saving Data into R Data Format: RDS and RDATA, We also described different ways for reading and writing Excel files in R. Writing data, in txt, csv or Excel file formats, is the best solution if you want to open these​  Text files can be a very fast and simple way to read and store information. I like to use them to save settings for my VBA add-ins and I have seen situations where databases have exported large amounts of data into .txt files instead of Excel files (especially back in the days with Excel 2003).

Supercharged JavaScript Graphics: with HTML5 canvas, jQuery, and More, data table in visualization API, 210 comma-separated values (CSV) file, saving tile 129 drawing paths with lines and curves, methods for, 130 drawing position API data table, 209 <data> tags, saving in Tiled XML files, 64 data( ) method,  Oneliner for saving to a file File.WriteAllText (location, content);. There is also the predefined DataTable method WriteXml (location) that saves the content of the data table to a file. – keenthinker Jun 1 '15 at 20:30 1 If you have working code it does not belong on this site.

Exporting Data From R - Easy Guides - Wiki, Practical Guide to Principal Component Methods in R you'll learn how to export data from R to txt, csv, Excel (xls, xlsx) and R data file formats. Additionally, we'll describe how to create and format Word and PowerPoint documents from R. Pursuing the goal of finding the best buffer format to store the data between notebook sessions, I chose the following metrics for comparison. size_mb — the size of the file (in Mb) with the serialized data frame; save_time — an amount of time required to save a data frame onto a disk

  • How much shorter do you want it?
  • Oneliner for saving to a file File.WriteAllText(location, content);. There is also the predefined DataTable method WriteXml(location) that saves the content of the data table to a file.
  • If you have working code it does not belong on this site. This site is for fixing broken code.
  • If you can work with xml then you might be interested in adding the DataTable to DataSet and calling WriteXml on it.
  • I just was wondering if I am not just re-inventing the wheel. If there is a very simple and short way that I just couldn't find out there, I'd appreciate if someone can let me know. The important part is about converting the table into a string, but thanks for the tip to write to a file in a single line, I didn't know it.
  • Why do you need to create the DataSet? Can't you just do myDataTable.WriteXml("filename.xml") as someone else suggested?
  • For some reason I was thinking about multiple tables. If you need just one table to be written then certainly you can go with DataTable.WriteXml.
  • FYI: In .NET Framework 4.6.2, there is no method on System.Data.DataSet named AddTable I used the Add method on DataSet.Tables. See .NET Framework 4.6.2 Documentation for DataSet and .NET Framework 4.6.2 Documentation for DataTableCollection.Add
  • Yes, this looks much simpler too.