File IO Configuration

This screen is used to configure the format of the file that is read or written to using the functions fnFileRead and fnFileWrite.

Name	Options	Description
File format	Text Binary	Simple text file Binary read/write mode (without string to string conversion).
Separator	COMMA TAB SPACE PIPE	Character used to separate data values
File Size, Max Type	LINE_MAXTYPE BYTE_MAXTYPE	Mac Value in bytes or lines.
File Size, Max Value	Integer number (0-max)	A value 0 is unlimited.
File Size, Max Action	OVER_WRITE ROLL_OVER	Overwrite the last line of the file. Delete the file and start over.
Add Column	Add a Data column	Add a column of any data type. As columns are added they appear to the left. Columns can be dragged to be rearranged. Columns can be edited by double-clicking. Columns can be deleted by right-clicking

Clicking the "Add Column" button displays the following window to create or edit a column:

Example:

To create a file that writes the currency symbol, bid and ask price on each tick:

EURUSD,1.1229300000,1.1232600000

The first column is a string data type and can be named anything, for example SymbolName
The second column is a double data type and be named anything, for example BidPrice
The third column is a double data type and be named anything, for example AskPrice
The columns are separated by a comma: the Separator value is selected as COMMA.

Refer to the sections on fnFileRead and fnFileWrite to read and write lines of data to this file format.