This topic describes the error codes specific to the drag event module, covering common exceptions in data retrieval, operation phases, and data loading, to help you identify the causes of errors and take corresponding measures. For universal error codes, see Universal Error Codes.
Error Message
Data not found.
Description
This error code is reported when you call getData of DragEvent but the data has not been obtained yet. The error code is of the string type.
Possible Causes
The DragEvent data has not been obtained.
Solution
N/A
Error Message
Data error.
Description
This error code is reported when you call getData of DragEvent but the obtained data is incorrect. The error code is of the string type.
Possible Causes
The obtained data is incorrect.
Solution
N/A
Error Message
Operation not allowed for current phase.
Description
This error code is reported when you call an API that is supported only in the onDrop phase outside that phase. The error code is of the string type.
Possible Causes
The current phase is not the onDrop phase.
Solution
Call the corresponding API in the onDrop phase.
Error Message
Operation failed.
Description
This error code is reported when you do not call cancelDataLoading during the data loading process after the drag is released. The error code is of the string type.
Possible Causes
The API is called at a wrong time.
Solution
Call the cancelDataLoading API during data loading.