hello,

 I wish to know as to how to capture an error generated from back-end. for eg: let assume, the user enters an value through a
textbox (html) and that value is already present in the database and it is primary key i.e unique and hence the value cannot be
inserted and an error will be generated.

How can i capture this type of error and inform the user about the same.

Thanks in advance.

 

 

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