File selection properties - Options tab
Enable multi-file uploads
Allows multiple files
to be uploaded for each data set. Underneath, you can specify what the
permitted "Maximum number of files per data set" is.
Max. file size
You can specify the maximum file size that can
be uploaded here. Select the desired unit in the list to the right of the
You can also select the "Max. number of files
per data record" and
"Maximum file size" for a file field.
If you do not want to restrict the file size or number of files,
leave the corresponding fields empty here.
The setting you define there is decisive for the
File selectioncontrol. This means
that, for example, if you define a maximum of size of 10 MB in
the file field properties, the
File selectionis unable to upload
more than 10 MB, regardless of the number you set in its
properties. If you set a maximum of 5 MB for the
File selection, for example, the data
field will allow up to 10 MB, but the control will only permit
5 MB to be uploaded. Therefore, the setting in the
File selection properties takes
priority when setting restrictions.
The same principle applies for the setting for the
"Allowed file types", which you can
also specify in this dialog.
Permitted file types
Enter extensions for "Allowed file types" with a
period in front of them, such as ".txt" or
".xml", each of them separated from the others
with a comma. These entries are not case-sensitive. Wildcards cannot be
applied here. When testing, whether a file is permitted or not, only the
ending will be tested. In principle, if for example
"document.txt" is entered here, the test will
interpret all files as permitted that end in
"document.txt", even a file with a name such as
Enables individual files to be uploaded to the server without saving the data
set at the same time. However, the assignment to the record will only be
created when the data set is saved. With this, the upload process can be
controlled more precisely, especially with large files.
Please note that the user needs to be informed about this process.
If this is not the case, we recommend using the
"Upload files automatically" option.
Upload files automatically
Means the files added by drag-and-drop are immediately uploaded
after the mouse button is released.
Start upload, Terminate upload, Delete file
The corresponding buttons will be shown on the end device, allowing
the upload process to be controlled accordingly.
Preview of image / audio / video files
The preview is shown when the file has already been selected but the data
record has not been saved yet. When viewing an existing data record, this
setting is not relevant for the presentation, but rather the setting for