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This chapter is about working with text files
Sometimes you will want to access data stored in text files.
Text files used to store data is often called flat files.
Common flat file formats are .txt, .xml, and .csv (comma-delimited values).
In the example to follow, you will need a text file to work with.
On your web site, if you don't have an App_Data folder, create one.
In the App_Data folder, create a new file named Persons.txt.
Add the following content to the file:
George,Lucas
Steven,Spielberg
Alfred,Hitchcock
The example below shows how to display data from a text file:
@{
var dataFile = Server.MapPath("~/App_Data/Persons.txt");
Array userData = File.ReadAllLines(dataFile);
}
<!DOCTYPE
html>
<html>
<body>
<h1>Reading Data from a File</h1>
@foreach (string dataLine in userData)
{
foreach
(string dataItem in dataLine.Split(','))
{@dataItem <text> </text>}
<br />
}
</body>
</html>
For each dataItem in each dataline of the array the data is displayed.
With Microsoft Excel, you can save a spreadsheet as a comma separated text file (.csv file). When you do so, each row in the spreadsheet is saved as a text line, and each data column is separated by a comma.
You can use the example above to read an Excel .csv file (just change the file name to the name of the Excel file).