for string like that float.Parse(string s); or float.TryParse(String s, out float f);

if U wanna convert from numerical  types U can do it in this way float f=(float) double (or other type)  

session expired, default after 20 minutes

I have cacheload method in Application_Start of the web application.

The application is accesses for the first time,which means Application_Start is fired and cache is loaded.

After 2hrs of idle time,We observed that Application_Start is triggered again and cache is getting reloaded.

We didn't do any iisreset.

Can any one explain why this is happening?v