Hello Devanand Chahal,
It seems your persistent capable class does not have any of the fields set as "version". You should mark one of the field to be a version field, otherwise OpenAccess would not know where to get the version information from.
If you are using reverse mapping, go to the Reverse mapping wizard, select the version field in the treeview (advanced view) and enable the version
checkbox. If you are using forward mapping, open the Forward mapping wizard, change the verify by
option to version
and select the appropriate field.
Afterwards you should get the version value at the beginning of the data object key string instead of the + sign that you are getting now.
Hope that helps.
All the best,
the Telerik team
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