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Container.ReadFile

Reads a file with the given path.

Component Version macOS Windows Linux Server FileMaker iOS SDK
Container 6.4 ✅ Yes ✅ Yes ✅ Yes ✅ Yes ✅ Yes
MBS( "Container.ReadFile"; FilePath { ; mode; filename } )   More

Parameters

Parameter Description Example Flags
FilePath The native file path. Something like "/Users/cs/desktop/test.txt" on Mac and "C:\Programs\Data\test.txt" on Windows. Files without path end in the root directory on Mac. "test.txt"
mode If missing or "auto", the plugin will try to detect type by file name extension.
If filter is "container", the result is returned as a container with a FILE stream inside.
The type can be specific here like PDF, JPEG, TIFF, GIF, BMP or PSD to return as image container. Or "compressed" to return a compressed container.		 "Auto" Optional
filename If result is container, this defines the file name to use. "test.txt" Optional

Result

Returns container value or error.

Description

Reads a file with the given path.
Reads the data in the file and returns as container.
See also Text.ReadTextFile for reading text files with specific encoding.

For reading simple text files, please use Text.ReadTextFile.
See also Files.ReadFile, Files.ReadJPEG, Files.ReadPDF, Files.ReadPNG, Text.ReadTextFile and RichText.ReadFile.

This function is optimized for FM 14 and newer to stream file content when using auto mode. This allows to import up to 4 GB of data in small chunks.

This function requires a native path. Use Path.FileMakerPathToNativePath to convert a FileMaker path to a native path if required. If you like to have the user choose the path, you can use FileDialog functions.
For Server be aware that server has limited permissions and may not be able to access all files on a computer.

Examples

Read image file:

MBS( "Container.ReadFile"; "/Users/cs/Pictures/test.jpg"; "auto")

Read image file with error checking:

# get native path
Set Variable [ $path ; Value: "/Users/cs/Pictures/mond.jpg" ]
#
# read file
Set Variable [ $content ; Value: MBS( "Container.ReadFile"; $path) ]
#
# check for error
If [ MBS("IsError") = 0 ]
    Set Field [ Contacts::Photo Container ; $content ]
Else
    Show Custom Dialog [ "Failed to read file." ; $content ]
End If

Save as PDF and import it to a field:

# go to layout and record before

# build a path for FileMaker
Set Variable [ $name ; Value: "test.pdf" ]
Set Variable [ $path ; Value: Get(DocumentsPath) & $name ]
Set Variable [ $NativePath ; Value: MBS( "Path.FileMakerPathToNativePath"; $path ) ]
#
# Let FileMaker save records
Save Records as PDF [ With dialog: Off ; “$path” ; Records being browsed ; Create folders: Off ]
Set Variable [ $error ; Value: Get(LastError) ]
If [ $error = 0 ]
    # Read result PDF
    Set Variable [ $PDF ; Value: MBS( "Container.ReadFile"; $NativePath) ]
    If [ MBS("ISError") = 0 ]
        # Put in container
        Set Field [ Contacts::PDF File ; $PDF ]
    Else
        Show Custom Dialog [ "Failed to read PDF document" ; $PDF ]
    End If
Else
    Show Custom Dialog [ "Failed to create PDF document" ; Get(LastExternalErrorDetail) ]
End If

Import file on Server on Windows:

MBS( "Container.ReadFile"; "C:\Programs\FileMaker Server\Data\Documents\test.pdf")

See also

Example Databases

Blog Entries

FileMaker Magazin

Created 6th September 2016, last changed 27th January 2021


Container.ReadArchive   -   Container.ReadImage

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