Asp.net - Set Master Page On Page Preinit Based On Custom User Control Method Result?
Apr 27, 2011
I have a user control that checks if a certain query string and session value are present then returns a boolean based on that, if it's true I want to set the master page. The page is throwing an Object reference exception when it tries to call the method EditUser1.UserAuthorization(). Why is this happening? I imagine that the method doesn't exist at that point in the stack. Protected Sub Page_PreInit(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.PreInit
[Code]...
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Oct 5, 2010
I wrote a page Page method in my aspx page. in web service method I need to call FindControl method return textbox and get text box value. But my findControl will take MasterPage object to iterate.
see my code
<script type = "text/javascript">
function ShowCurrentDateTime() {
$.ajax({
[Code]....
How to pass Master Page object or Page to Page method?. So I can use in Sared method.
Is there any way I can access Textbox value directly in Page method? I need access couple of controls in Page Method.
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May 21, 2012
I am using <%@ MasterType virtualpath="~/__.Master" %> to embed my master page content into child page to access control belong to Master Page. I have one DropDownList in Master page. And I want to access its SelectedValue in my Child Page.
Problem is when page first time loads and as I am trying to access DropDownList's Selected Value by writing in child Page - "Master.DropDownList.SelectedValue". I am not able to get DropDownList's Value. Its display's Blank.
But When Page.IsPostBack I am able to get SelectedValue of that DropDownList.
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Nov 4, 2010
HOW TO RUN THE JAVASCRIPT FUNCTION ON PAGE ONLOAD EVENT IN CONTENT PAGE OF MASTER PAGE.? means i have masterpage and the content page of master page namely default.aspx in vb.net.i wanna run javascript function in Default.aspx and i have called the function body onload in master page.when i run my website it shows the error "" Microsoft JScript Runtime Error : Object Expected ""
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Feb 18, 2010
I have a nested master page that has its own master page. The parent master page has a property defined in its code behind.
Public ReadOnly Property SelectedPage() As String
Get
Return _selectedPage
End Get
End Property
How can I reference the parent master page's property from within either the child master page's code behind Page_Load or aspx template page?
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Aug 7, 2009
I have a master page which contains everything that inherits it within a form. A page inheriting from it needs to run some javascript to act on a text field on a page. However, I can't seem to reference that text field through the javascript, since the form begins on the master page. The following line will come up bogus: document.form1.txtFindUser.value = blah.responseText; This is because form1 is defined on the master page, while txtFindUser is on the current page.
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May 11, 2011
The thing is i have a Master page and a Content Page. I have a LoadComplete in Content Page and a PreRender in Master Page. The problem is one of my htmlcontrols on content page i change on the LoadComplete event server side of the content page. I also have some code for disabling controls on the Master Page PreRender event. For some reason all controls on the aspx side go through the Master Page prerender except the ones that i change on the LoadComplete side. How can i make sure the entire content page loads and then the Master Page PreRender event is called, making all the controls go through that event.
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Dec 27, 2009
I want to access a page variable from a user control placed on that page. All the solutions work in C# via casting to the page class. The problem is that this doesn't work in VB. The page class is not selectable from the Intellisense dialog. Manual typing results in the error type not defined. It is strange that C# can do this without a problem. What is the proper solution for this in VB? I had other cases where I needed to access a control on the main page. C# again uses a cast to the page class to access the control. This doesn't work in VB again. So how can I access the page class from a user control in generell?
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Jul 2, 2011
I have master page in ASP.NET. I have added two asp controls to master page i.e. _EmpDROPDOWN and _findBUTTON.I have one content page. FindEmployee.aspx which shows result list of employees (Gridview) based on the selection made in _EmpDROPDOWN when _FindBUTTON is clicked on Master Page.I dont know how to read Master Page button click evenet in Content page.How to read master page button click event (VB.NET syntax) in Content Page?
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Aug 30, 2009
I am trying to check all the checkboxes on a webform (aspx) page, which is inside a master page,depending on the ID of the checkbox. The checkboxes are created dynamically, so I only know the prefix for finding it. So, I need to find these checkboxes by iterating the controls on the page somehow. It's not working out.
[Code]...
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Jan 6, 2010
I'm trying to retrieve a custom Attribute set on a page's class from inside the MasterPage. Normally to do this I would need to reflect directly on the specific class, but inside the Master page it's always referred to as the Page type (the parent class). How do I determine the specific type of the Page property?
Here's an example of what I'm trying to do:
Dim attrs() As Object = Page.GetType().GetCustomAttributes(GetType(MyCustomAttribute), False)
For Each attr As MyCustomAttribute In attrs
' Do something '
Next
but it only ever returns the attributes attached to the actual Page class.
I'd rather not have to derive a new base type from Page if I can avoid it.
Here is how my class is defined (in the code-behind):<MyCustom()> _Partial Class PageClass Am I defining this in the wrong place?
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Mar 3, 2010
How to Update a div tag in Master Page using a button click in Content page? or Wise versa?
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Sep 9, 2011
I have an asp image within my "default.aspx" page.I set cookies on my masterpage vb file and depending on the cookie set, I want to show or hide this image.
default.aspx
<asp:image ImageUrl="/images/myimage.jpg" runat="server" ID="myimage" Visible="false"></asp:image>
mymaster.aspx.vb
[code]....
I get the following error:
'myimage' is not declared. It may be inaccessible due to its protection level.
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Nov 5, 2010
I can add NavigatorMenu item in Master Page like this:
Partial Class Site
Inherits System.Web.UI.MasterPage
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
[code]....
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Apr 13, 2010
i have a page called a1.aspx, with the Masterpagefile = a1_master.master. Now the master page has its own divs and images for design purposes. I want a way where when i load a1.aspx, certain chosen 's and images should be hidden (visible=false). how can i do this? how can i change the visibility of a div or an image in the master page from the content page?
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May 11, 2011
Just as the title says. I have code that disables all controls that runat=server. Its as follows
Dim c As Control
For Each c In pc
If c.HasControls Then DisableAllControls(c.Controls)
[code]....
But I have a couple of href's in there that i want to disable also. I know they dont runat server, so how can i catch these?
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Sep 6, 2010
I have an web application of 200 web pages and all has a single master page. Most of the content pages use AJAX controls so most of content pages has its own ScriptManager. Now I have a requirement to add a link with HoverMenuExtender control and for that I need to put ScriptManager in the Master page, but it is working only in the content pages where there is not ScriptManager.
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Jun 15, 2012
Scenario: Every page on the website will have a menu bar at the top consisting of a number of buttons. Some pages have the same amount of button that do the same thing (example redirect to a page) but some of the buttons depend on information currently on the page.Problem: I would like to be able to override the buttons on the control so that I could handle it per page. I was also thinking maybe it would be easier to use events and handle it that way instead. Are either of these approaches possible and if not is there an alternative?The code I currently have is below
In the aspx page
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
[code].....
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Jul 29, 2011
In my master page init sub I have a block of data/text being written to a control. The basic idea was that it should be available on every page (obviously). However, I have come across a situation in which I need this to NOT happen on a certain page. Is there anything I can do, short of making a new master page for this specific page, to make this work? I also use a basepage, if that ever needs to come into play.
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May 30, 2012
I have admin module. This module have one master page which has the no of panels at left side. I have to make this panels visible and invisible with base control class which is constructed in VB language. I'm working with asp.net 2.0 with c# web site.
how do i construct this base control class and manage panels with Master Page on link button click event.
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Nov 18, 2010
I have 1 master page in asp.net(vb.net). now this master page has 1 form which has 10 textboxes in it. On the other hand the master page has about 10 different links in it (outside the form), that link to different pages. My question is how do i keep all this same way, and only divide the form in 2 pages. 5 textboxes for first and 5 textboxes for second. So basically when master page loads, it doesnt show the 10 textboxes as original, but shows only first 5, and when clicked "continue", the next 5 textboxes load on the same place as the first 5 were. The rest of links in page and rest of the page, remains exactly the same.
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Jul 6, 2009
I'm planning to use the master page divide the page in to three sections. The Top side of the page and Left side of the page must show the Menu buttons and user information at all times.
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Jun 18, 2011
I'm currently attempting to use a .NET WebBrowser to display help information (stored locally in html files) for an application I'm writing, however I'm experiencing two problems, both related to hyperlinks.
Firstly, I have a search function which returns the correct URL in the format file:\C:... I can copy and paste it into a browser, and it will navigate there. Yet clicking on the link within the control itself does nothing at all.
Secondly, the HTML files all contain relative paths to other HTML files. These of course do not work as I just end up with file:\C:help.html which gives me a 'webpage is unavailable.' But I can't think of a way to get it to work without parsing the HTML file and concatenating the path to the directory on to the front of the link.
Just to clarify, in the first problem I am dynamically building a search result page as the user types. The HTML contains several results similar to this (yes, it's unfinished, I'm just showing you the link part): [code] Now, when I click on that link in the control nothing happens, it doesn't give me a 'webpage is unavailable' or take me to the actual page. Saving the HTML, however, and opening it with Chrome, IE and Firefox works fine.In the second problem, I have a different help file for different sections, each containing relative links to several others. VB picks these up as direct paths, and attempts to go there from root, i.e file:\C:file.html. The only solution I can think of is to parse the file and use WebBrowser.Navigate(Path.Combine(pathToDirectory, nameOfHelpFile.html), which seems a lot more inefficient than it should be.
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Oct 27, 2009
Ive tried searching for hours now and cannot find out why my code (aka, me.) is failing
Basically... I have a listview control which I'm passing a datatable of products (ID, Name, Description and Price columns), and im trying to make it so that when the "checkout" button is pressed, it parses through all the controls on the page, finds all the controls with the correct ID's and adds the items values to the cart.
ive checked all my ID's in the source code and they match up to the ones being requested by the FindControl method.[code]...
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Oct 17, 2011
I have an aspx page that has two different user controls. I want to find user control A and be able to set properties, etc., from user control B.
I was thinking I could do something like this:
Dim CMFilters As Control = Me.Parent.FindControl("CMFilters")
...but that doesnt work to be able to set properties and call methods. I somehow need to get the user control and and declare it as that user control type.
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Mar 8, 2009
I have a form with a Tab Control that has 18 pages. When I click on a tab it opens the page and select a textbox on that page (txtTextbox1. Select() ). This works for the first 8 pages but not for the remaining 10 pages. Although on these pages I can mouse click on the textbox, enter info, save then click my Add button that clears the textboxes and has the code (txtTextbox1. Select() ). The textbox is selected just fine. The code for all my pages is the same except for the tab name and the control names. The tab key will move the selection to the next textbox in order on all pages and the Enter key is coded to do the same. The first 8 pages have a total of 256 labels, buttons, list boxes, textboxes and checkboxes on them.
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Nov 18, 2011
Using vb.net on an aspx code behind event, is there away to tell from a parent page if the child page popup is open, and then close the child page if it is truly open based on some event on the parent page, like clicking a gridview edit link, again?
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Feb 12, 2011
I have an asp.net usercontrol which represents a "popup" dialog. Basically, it's a wrapper for the jQuery UI dialog which can be subclassed to easily make dialogs. As part of this control, I need to inject a div into the page the control is used on, either at the very top or very bottom of the form so that when the popup is instantiated, it's parent is changed to this div. This allows "nested" popups without the child popup being trapped inside the parent popup.
The trouble is, I can't find a safe way to inject this div into the page. A usercontrol doesn't have a preinit event, so I can't do it there, and calling Page.Form.Controls.Add(...) in Init, Load or PreRender causes the standard exception "The control collection cannot be modified during DataBind, Init, Load, PreRender or Unload phases."
I thought I had found a solution by using. ScriptManager.RegisterClientScriptBlock(Page, Me.GetType, UniqueID + "_Dialog_Div", containerDiv, False) which seemed to work well normally, but recently a coworker tried putting an UpdatePanel inside the dialog and now she's getting the error "The script tag registered for type 'ASP.controls_order_viewzips_ascx' and key 'ctl00$ContentBody$OViewZips_Dialog_Div' has invalid characters outside of the script tags: . Only properly formatted script tags can be registered."
How are you supposed to add controls to the pages control collection from inside a user control?
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Jun 12, 2011
I have a text input in textbox1 in tab page 1 and i want that text from textbox1 will be displayed in textbox2 in tab page 2.
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May 21, 2009
I have a base page class that inherits from Page. We'll call it SpiffyPage. I also have a user control called SpiffyControl. I then have an aspx page, ViewSpiffyStuff.aspx, that inherits from SpiffyPage. On page load, the SpiffyPage class is supposed to inject a SpiffyControl into the aspx page. The problem is that SpiffyControl is a user control, and to instantiate that in the code behind one has to access the ASP namespace, sort of like: ASP.controls_spiffycontrol_aspx MyControl;
But SpiffyPage isn't an aspx page, it's just a base page, and as such I can't access the ASP namespace, and I therefore can't instantiate a SpiffyControl in order to inject it. How can I achieve my goal?
Edit: One important point is that I must have a reference to the actual control type so I can assign values to certain custom Properties. That's why a function like LoadControl, which returns type Control, won't work in this case.
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