I created a simple sample of WebCombo with OnShowDropDown client-side event. Each time OnShowDropDown JS function is invoked, it will update dvLog div element and displays: "OnShowDropDown invoked".

OnShowDropDown client-side event of WebCombo specifies the client-side function to be invoked when the result box of a combo is being shown. It will be invoked when:

• DropDown arrow is clicked.
• Load more data arrow

I enclosed the sample as attachment. Could you please evaluate the sample on your end and let me know if the OnShowDropDown keep invoked until you close the application or not?

Hi Yudi,

Thank you for quick response.

I have used sample what you sent. It displays "OnShowDropDown invoked" two times when i click on the

dropdown arrow.

can you suggest any idea to invoke onshowdropdown event only one time.

One more question about onshowdropdown event: I am binding dropdown in OnShowDropDown client side event using ajax call. The Problem is lazy binding.

Can you suggest me any thing about this to fasten the binding. It is taking more time to bind the data.

Thank you in advvance