Global class variable for ASP.NET

Question

I am building an ASP.NET Application which has 2 projects. One is a class library having BL Code. I want to create a public class instance variable from one of the classes in BL. This class instance variable is to avoid loading all the data on each request which makes my application to respond slow for each request. How to make the global class variable load data at page_Load, and keep it until the user redirects to another page.

question is how to load values at pageLoad, and keep it until the user redirects to another page. — Yesudass Moses
– Yesudass Moses, Commented Mar 21, 2015 at 9:12

Yatrix · Accepted Answer · 2015-03-21 07:13:47Z

1

Create it in ViewState and wrap it in a property for easy of use. Something along the lines of:

public MyClass MyObj {
    get {
        if (ViewState["MyObj"] == null){
             ViewState["MyObj"] = new MyClass();
        }
        return ViewState["MyObj"]; 
    }
    set {
        ViewState["MyObj"] = value;
    }
}

answered Mar 21, 2015 at 7:13

Yatrix

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4 Comments

Yesudass Moses Over a year ago

what is the capacity of a viewstate ? how much data it can hold ?

Rajeesh Menoth Over a year ago

When u inserting large amount of data in view state.ViewState involves extra overload of serializing and deserializing the objects, so involves extra processing time.it's effect the performance.

Davide Lettieri Over a year ago

And the viewstate is stored inside the page html so the users will download it at each request

user2160375 Over a year ago

It's worth mentioning that MyClass musi be marked as Serializable.

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