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TrFile_Exists |
Check for the existence of a file or folder.
Syntax
TrFile_Exists ( switches ; filePath )
Parameters
| switches | not used, reserved for future use. Leave blank or put "-Unused" |
| filePath | the path to the file for which you want to know if it exists |
Returned Result
Data type returned
Number
Result
The returned result is a boolean: the function returns 1 if the file or folder exists. If it does not exist or if an error occurs it will return 0.
Originated in
Troi File Plug-in 3.1
Compatibility
FileMaker Pro 17 to FileMaker Pro 21 (2024)
Considerations
If the function returns 0 you should decide if it is necessary to check for errors, for example if a file is on a disk that is not mounted.
Example
Set Field [ doesExists ; TrFile_Exists ( "-Unused" ; "C:\Test.txt" ) ]This will return 1 if it exists.
Example 2
We assume that in your FileMaker file the following field is defined:
gFilePath Global, textgFilePath should contain the path to a file, for example “D:\Logs\L2000_01.TXT” (Windows) or “Mac HD:Logs:Log 2000_01” (Mac). In a script add the following script steps:
if [ TrFile_Exists ( "-Unused" ; gFilePath ) ]
# ... do your stuff here
else
# ... do your error handling here....
endifThis will make it easy to handle existing files.
Used in example file
Attribute.fmp12
Related functions
| TrFile_GetDateModified |
| TrFile_GetTimestampCreated |
| TrFile_IsFree |
| TrFile_SelectFileDialog |
Related topics
Troi File Plug-in online help (overview)