When scrolling through a dropdown using keyboard arrows, for every keydown or up a postback is happening and before the postback returns a response , the state of the dropdown is getting set. How can I prevent the postback for every keyup or keydown. My scenario is to revert the newly selected value to the old value whenever user scrolls through the dropdown using arrow keys.
1 Answer, 1 is accepted
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Hello Soumita,
When using the arrow keys within the popup of the DropDownList, the onChange event will fire, so if you have some logic that initiates a postback within the onChange event, the behavior that you are observing would be expected.
What I would suggest as an alternative is to handle the onBlur event of the DropDownList and execute your logic there if the value has changed:
If the issue differs, please share an example with a simplified version of your scenario that replicates the issue, so we can test and debug it locally.
Regards,
Konstantin Dikov
Progress Telerik
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