WebFileUploader.Filter
From Xojo Documentation
Property (As String )
aWebFileUploader.Filter = newStringValue
or
StringValue = aWebFileUploader.Filter
New in 2018r1
Supported for all project types and targets.
or
StringValue = aWebFileUploader.Filter
New in 2018r1
Supported for all project types and targets.
The MIME type of files that an be chosen for upload.
Notes
Separate multiple MIME types with a semicolon.
Example
This code in the Shown event handler for the WebFileUploader lets you choose PNG and JPG files:
Me.Filter = "image/png;image/jpeg"