← v4 compatibility demos
Persisted File Upload
The persisted-file control keeps a single current file across postbacks and raises
FileChanged whenever it is replaced.
This control lost nine members in v5 because v4 declared them on
UploadFileBase (shared with Uploader) while v5 declared
them on Uploader alone. v4 code touching
UploadPersistedFile1.CancelText or .InsertButton would
not even compile. Restored in 5.3.2 by putting them back on the shared base.
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