Ajax toolkit-updatepanelanimationextender application and Problems

Updatepanelanimationextender: The application performs well. It has both the animation effect and the fun of Development (at least the page is not the same effect ).

In actual application, I don't know if you have found it. Generally, the animation part is the part where you want to display the result.

Then, it should have such an effect. The general interface layout is basically two updatepanel and updatepanelanimationextender applications.

The red part of the figure applies updatepanelanimationextender.

Requirements:

When you click search, only apply the animation to the Display Search Results section.

Implementation:

Yes.

However, if you want to use the autocomplete function on the input search keyword, the problem arises.

After the autocomplete function is applied, the user enters a keyword, displaysearchresults, which is partially animated once, and then clicks search, displaysearchresults is no longer animated. Why?

In fact, if you know the principle, you can understand why?

A: Based on the updatepanel architecture, when any elements on the interface is PostBack, onupdating animation is triggered, but onupdated animation only occurs after the last PostBack, that is, the updatepanel update is complete. (When updatepanel is set, set the updatemode of the second updatepanel to always. Make sure that onupdated animation is executed every time partial PostBack is completed .)

 

It is important to note that because of the updatepanel architecture, the onupdating animation will always play when any partial PostBack starts, but the onupdated animation will only play at the end of a partial PostBack if its updatepanel was changed (note: setting the updatepanel's updatemode = "always" will ensure the onupdated animation plays when every partial PostBack completes ).

 
Ah, but the problem is coming again. In this case, any partial PostBack action will trigger onupdating and onupdated animation. If there is another button on the page, click it again. Isn't Display Search Results animated again? Yes.

If I only want to click search to trigger the result animation. What should we do? (I have no solution based on the principle. If you have a master, please also teach this .)