Category: ASP.NET

20 Jun 2016 22:56

Joined:	20/06/2016
Level:	Bronze
Points:	17

Points:	5

Post back Issue of Master Page

Hello ,

I have a master page having one label control.The Text value of control is set dynamically(ie from db). I am checking is post back also But this code is executing when we click on each page. i need to execute this this only one time. If lot of controls are there, then it not good to use session variable.Please help me.

The code is as follows:

If Not IsPostBack Then

Dim objMasterBAL As New MasterBAL
Dim dT As DataTable
If Session("CompanyId") Is Nothing Then
dT = objMasterBAL.SelectCompanyDetails(IIf(Session("CompanyId") Is Nothing, 1, Session("CompanyId")))
lblCompanyName.Text = dT.Rows(0).Item("CompanyName").ToString
Page.Header.Title = "::" & dT.Rows(0).Item("CompanyName").ToString
End If

end if

#766563

20 Jun 2016 23:12

Joined:	05/06/2009
Level:	Gold
Points:	10245

Points:	4

I am not clear about this question. Following are some of the tips to related to your issue.

1. If you want to use it only one time( ie on post back do not want to use it) check Page.IsPostback.
2. If you want to use that for all the times (ie after postback also you want that values) do not check the postback

Either you can use the Sessions or you can make the DB call again. Are you feeling DB call will cause performance issue?. If it is simple data retrieve you can use that. Other wise use the "Session". Why you want to go for other solutions?

By Nathan
Direction is important than speed

#766564

20 Jun 2016 23:15

Joined:	05/06/2009
Level:	Gold
Points:	10245

Points:	4

I am not clear about this question. Following are some of the tips to related to your issue.

1. If you want to use it only one time( ie on post back do not want to use it) check Page.IsPostback.
2. If you want to use that for all the times (ie after postback also you want that values) do not check the postback

Either you can use the Sessions or you can make the DB call again. Are you feeling DB call will cause performance issue?. If it is simple data retrieve you can use that. Other wise use the "Session". Why you want to go for other solutions?

By Nathan
Direction is important than speed

#766567

20 Jun 2016 23:21

Joined:	13/06/2007
Level:	Gold
Points:	21327

Points:	3

Apparently it is not possible to have 2 pageLoad functions - one in the masterpage and one in the content page. The solution suggested there is making another function on the content page and call it if it exist:


function pageLoad() {
    // Master pageLoad() code.

    // If function contentPageLoad exists, execute it.
    if(typeof contentPageLoad == 'function')
      contentPageLoad();
}

Thanks
Koolprasd2003
Editor, DotNetSpider MVM
Microsoft MVP 2014 [ASP.NET/IIS]

#766568

20 Jun 2016 23:21

Joined:	03/05/2013
Level:	Gold
Points:	15822

Points:	2

Hi,

I think you might call this master page on each page, whenever you call, it consider as a new request and reload the page again, i.e. for new request it moves to inside postback, that is the reason it loads again.

--------------------------------------------------------------------------------
Give respect to your work, Instead of trying to impress your boss.

N@veen
Blog : http://naveens-dotnet.blogspot.in/

#766573

20 Jun 2016 23:36

Joined:	20/06/2016
Level:	Bronze
Points:	17

Points:	1

Hello Nathan,

I have some link buttons and some more lables are there in master page. I think it will affect the peformance of the application if we use session variable or calll db again and again. Thi controls are common to all content pages.

#766865

28 Jun 2016 10:18

Joined:	20/03/2013
Level:	Gold
Points:	4176

Points:	2

check with a boolean value with session the first time it enters in to page


 if(session("already entered")!=null)
{
If Not IsPostBack && session("already entered") =false)
{
 session("already entred") =true;
}
}

SRI RAMA PHANI BHUSHAN KAMBHAMPATI

Post back Issue of Master Page

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