GGGopi Govindasamy Syncfusion Team August 26, 2019 04:17 AM
Greetings from Syncfusion support.
We have provided support for “send additional data with upload files” and included in the below private NuGet package. The support will be include in our upcoming patch release which is scheduled on 28th August 2019. Until then, kindly use this below private NuGet for this support and utilize FileSelected event to send additional data (args.CustomFormData) as a key-value pair.