Responsive design in ext.net 2.5

In current project iam using EXT.Net 2.5.2 but i need to design my application in responsive way. In my application iam having ext:gridpanel, ext:panel, ext:tabpanel and many ext controls. In some of post of ext forums showing that bootstrap design will happen only from ext.net 3.0

There's no specific support in Ext.NET 2.5 for the Bootstrap library, and responsive layout is generally not available in Ext.NET 2.5. Improved support is coming in Ext.NET 3.


Here iam attaching screen shot taken from ext forums. url: https://forums.ext.net/showthread.ph...rap-compatible


whether it is necessary to use Ext.Net 3 for bootstrap please clarify my doubt it is emergency.




and in one more URL here iam attaching URL: https://forums.ext.net/showthread.php?55861-Responsive-Examples

in this Example there is a note given for each example Note: Developing, unless otherwise noted, at latest revision from SVN trunk (Ext.Net 3.3.0), Visual Studio 2015 (update 2), Asp.Net (MVC 5.2.3 and Razor 3.2.3), Chrome 51.0.2704.84 m, FireFox 47.0 and Internet Explorer 11.0.9600.18350.

Please Clarify my doubt whether it is compulsory to use Ext.Net 3 or above for bootstrap design

Please Clarify Very emergency because the project is at the end which is going to deployed.


Note:

whether EXT.Net 2.5 will support Bootstrap or not whether it is necessary to upgrade Ext.Net to higher version to 3.0 or above
please clarify

Hello,

Responsive layout is supported in Ext.NET 4. The following sample demonstrates, see

https://examples4.ext.net/#/search/responsive

Hope this helps answer your questions.