Avoid Page Reload on every Event

Arun Kumar

10y1.1k.NET

Hi,

Am using multiple dropdowns, multiple textboxes and “modalpopupextender” in my page,

I am fetching the data from batabase to textboxes using dropdown_SelectedIndexChanged event.

If I change the value of drop down, Page will flickering(displays Popup for some time);

If I use autopostback=false for dropdown, data will not fetching into textboxes.

How to avoid blinking popup on every event.

4 Replies

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Rajeesh Menoth10y ago
Hi,

You can use Asp.net Update Panel or Jquery Ajax method to avoid Post Back..

Reference :

http://www.aspsnippets.com/Articles/Populate-Bind-ASPNet-DropDownList-using-jQuery-AJAX-and-JSON-in-C-and-VBNet.aspx

http://www.aspsnippets.com/Articles/AJAX-Cascading-DropDownList-using-jQuery-in-ASP.Net.aspx
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Sandy Surwase10y ago
if you want to avoid reload then go will ajax.you are using modelpopup
can you show your code
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Francis Susaimichael10y ago
If I change the value of drop down, Page will flickering

This is the normal behaviour of an ASP.Net Web form page. In order to avoid this, you should consider to use "Updatepanel".

The below Stackoverflow discussion gives a complete solution :

http://stackoverflow.com/questions/1256943/dropdownlist-in-updatepanel

Also, if you face any issue hope the below urls are helpful:
http://www.aspforums.net/Threads/213448/How-to-refresh-ASPNet-UpdatePanel-on-DropDownList-change-in-ASPNet/

Hope this helps a bit!
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Ranjit Powar10y ago
You should use web method and call it from jquery.

Check this

http://www.aspsnippets.com/Articles/Calling-ASPNet-WebMethod-using-jQuery-AJAX.aspx
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