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

Question

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

score 2 · Accepted Answer · answered Apr 03 '13 at 09:09

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.

score 2 · Answer 2 · answered Apr 03 '13 at 09:10

2

I believe it is more consistent to check for IsPostBack in content page. You can move this condition to Page1.aspx and expose adjustServiceBar() method in your master page, so that content pages can call it, like Master.adjustServiceBar().

answered Apr 03 '13 at 09:10

Alexander Tsvetkov

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+1 I would do this too. Afterall the content page is the one posting back not the masterpage. – Jack Pettinger Apr 03 '13 at 09:14
`Master.adjustServiceBar();` is Unaccessable due to protection level – Anyname Donotcare Apr 03 '13 at 09:20
So why don't you change the protection level?) If this is impossible for any reason, you can add another method wrapping this one. Or you can't change master page code at all? – Alexander Tsvetkov Apr 03 '13 at 09:24
`public void adjustServiceBar()` – Anyname Donotcare Apr 03 '13 at 09:25
but still the same issue ! – Anyname Donotcare Apr 03 '13 at 09:26
Did you add MasterType directive to your content page? http://msdn.microsoft.com/en-us/library/vstudio/ms228274(v=vs.100).aspx – Alexander Tsvetkov Apr 03 '13 at 09:28

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

2 Answers2