How to prevent entering duplicate

Question

Hi All, I have a grid and it that grid edit functionality is provided. I need to make sure that when user click on edit, the duplicate values should not be entered. Can anyone please help me out.

Mike Schmitt · Answer

I think both Stefan and I are pretty unclear what your actual use case is. I suggest starting at the beginning and giving us a step-by-step description of what you would expect the user experience to be, including which of those expectations you're currently unable to meet. By that I mean you should write it out step-by-step giving details, instead of a vague overview that requires us to just guess at what you're really after.

Mike Schmitt · Answer

Unknown said: that would require some state management in the interface 
 If the row-click action just records the index of that row, and the subsequent edit field writes directly into that row (for example), then not necessarily. But it depends so much on the particulars of the current attempted implementaiton that I find it useless to even try guessing at it until more details are provided.

How to prevent entering duplicate

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