cannot access public variable in one page from another? - ng.asp-net-forum.visual_web_developer_2005_express

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8 Items, 1 Pages 1 |< << Go >> >|

	Jeevi
	Asp.Net User

cannot access public variable in one page from another?

6/4/2007 4:12:27 AM

0/0

hi,

let me explain my question briefly. i've two webforms called webForm1 and webForm2. i would like to add the following line in webForm2.aspx.vb page.

ie. Dim myPage as New webForm1
myPage.PublicVariable = myValue .(something like that) but it shows error that is "Type webForm1 not defined" and the intellisence also doesnt show this page. that means, i need to add these file into AppCode Directory? or i cant initialize one webform from another? Pls help me in this issue.

Any help would be greately appreciated!

	Javier Luna
	Asp.Net User

Re: cannot access public variable in one page from another?

6/4/2007 7:15:12 AM

0/0

You should have to use Session variables.

from Villa El Salvador for world!

	satish_nagdev
	Asp.Net User

Re: cannot access public variable in one page from another?

6/4/2007 7:35:38 AM

0/0

Other option apart from Session variable could be use of viewstate, cookies, QueryString and hidden fields.

but more better option which i could think of is using HttpContext, the link http://www.awprofessional.com/articles/article.asp?p=382852&seqNum=5&rl=1 is easy to understand, go through it, if you get any problem lets know.

thanks,

satish.

Kind Attn: If a reply to your post helped you, kindly mark it as Answered.
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	Jeevi
	Asp.Net User

Re: cannot access public variable in one page from another?

6/4/2007 8:12:18 AM

0/0

Thanks for ur reply.

what am i really trying to do is, from the child page trying to change the visiblity of the particular control which is in the Master Page.

is this possible? any idea?

	kipo
	Asp.Net User

Re: cannot access public variable in one page from another?

6/4/2007 8:28:53 AM

0/0

You can do it like this (in this example you will change visibility of the label "Label1" which is in master page from child page):

Label lbl1 = (Label)Master.FindControl("Label1");
lbl1.Visible = false;

	Jeevi
	Asp.Net User

Re: cannot access public variable in one page from another?

6/4/2007 8:52:07 AM

0/0

i tried this before, but i've received the following error "[NullReferenceException: Object reference not set to an instance of an object.]".

here is the code i've used,

Dim myPage As myMasterPage
myPage = New myMasterPage
Dim myPanel As New System.Web.UI.WebControls.Panel
myPanel = myPage.FindControl("LoginPanel")
myPanel.Visible = False 'error in this line
i've placed this code under ChildPage's Load Event and i even tried placing this under "Page_Init / Page_PreInit / Page_PreLoad" events... but nothing seems to be working. I turned on the Page Trace property. so that, i can check whether the ctl "LoginPanel" is loading or not.

i can see this line in Page Trace - Control Tree area

ctl00$LoginPanel System.Web.UI.WebControls.Panel

what am i really missing? i've no idea.

Thanks.

	kipo
	Asp.Net User

Re: cannot access public variable in one page from another?

6/4/2007 8:59:59 AM

0/0

Try with this:

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Dim myPanel As Panel = CType(Master.FindControl("LoginPanel"), Panel)
myPanel.Visible = False
End Sub

	Jeevi
	Asp.Net User

Re: cannot access public variable in one page from another?

6/4/2007 9:15:54 AM

0/0

Waav! its great. Thank you so much. It really works.

Thanks again.

8 Items, 1 Pages 1 |< << Go >> >|

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