How to call a method only once in the first page load in the master page

c# asp.net master-pages page-lifecycle ispostback
Anyname Donotcare picture Anyname Donotcare · Apr 3, 2013 · Viewed 9.3k times · Source

I have the following case:

Page1.aspx this page has the master page master.aspx.

I have some code in the master page :

 if (!Page.IsPostBack)
            {
                adjustServiceBar();

            }

when i click any button in the Page1.aspxit enters the !Page.IsPostBack and execute the method !!

i want this method in the !Page.IsPostBack) only

Answer

mtsiakiris picture mtsiakiris · Apr 3, 2013

One way to do this is to set a session variable and then check that variable to ensure your code will fire only once. Another way is to set a hidden control on your form and play with its text or value property.

According to each scenario the solution may be very complex such as custom derived masterpages and pages that extend the current events functionality to suit your needs.

Related questions

Can I dynamically add HTML within a div tag from C# on load event?

Mind you, I am using master pages, but can I locate a div within the page and throw some html in there? Thanks.

Read More
Where does error CS0433 "Type 'X' already exists in both A.dll and B.dll " come from?

When I run a webapp from Visual Studio 2008 SP1 using the internal web server (not IIS) I receive the above mentioned error. The full error (source file Default.aspx.cs): Compiler Error Message: CS0433: The type 'WebApplication3.Site1' exists …

Read More
Parser Error: '_Default' is not allowed here because it does not extend class 'System.Web.UI.Page' & MasterType declaration

I recently converted a website project to a web application project in Visual Studio 2008. I finally got it to compile, and the first page (the login screen) displayed as normal, but then when it redirected to the Default.aspx page, …

Read More