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I have a similar need but I don't want to auto upload either. I want to upload only if I click my custom button. Can you please help
We suggest you use our upload method to achieve your requirement. To know more about the upload method, Please refer to the below documentation link.
Documentation link: https://ej2.syncfusion.com/angular/documentation/uploader/how-to/achieve-file-upload-programmatically/
API link: https://ej2.syncfusion.com/angular/documentation/api/uploader/#upload
Please check the above documentation and let us know if your requirements are met or not. If not, can you please share more detailed information about your requirements?