Web Forms :: Master Page And Css Themes Does Postback Each Time?
Dec 29, 2010
I have a master page which contains a treeview and a linkbutton. i have used 3 different stylesheets for the same page and those are listed in dropdownlist on the same master page. on dropdownlist change() event stylesheet of the master page change, i have 1 default style sheet which will come as master page loads.
now the problem is when i changed stylesheet from dropdown list, stylesheet changes the master page , but after that when if i clicked on treeview or linkbutton the stylesheet is restored to default one.
i have written following code
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
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Feb 9, 2011
I have an App_Themes directory, and also Master pages for a ASP.NET website.
Can I use 2 different themes based on the master page?
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Jul 15, 2010
master page has runat=server on the head tag element, it is injecting a stylesheet on the page for some reason and I am not doing it explicitly.
Is it a themes setting that is adding the stylesheet? How can I disable it for this master page?
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Jun 21, 2010
I have been working on a fun little project just to build my skills as an ASP.Net developer. I have learned quite a bit thus far, and don't normally post questions in forums. Google and the books I own generally do the trick for me. But for this question I would like some community input.
I am developing a simple blog platform in ASP.Net / C#. Eventually I hope it will basically be a clone of how Wordpress works. Again, this is mostly a learning project for myself and I realize there are many projects out there doing what I am doing in .Net.
Anyways, the question I want some input on is whether I should use themes or master pages to customize the look and feel of the site. As I understand it, a theme mostly just changes colors and such, but CAN do much more. Whereas a master page can easily change the look and feel of an entire site.
What are the pro's and con's of either route, and what would y'all recommend? I'm not really looking for code examples here, just input on what y'all would think is the best route to pursue.
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Aug 12, 2010
to a vb code resource/tutorial that explains how you can change a theme from a dropdown list on a content page derived from a nested master page, not the main master page.
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Oct 15, 2010
When an asynchronous postback happened inside update panel, another postback happens also for MasterPage not only update panel embedded page .
I want to prevent this MasterPage postback .
is this possible ? think like i have a MasterPage
and another page which is test.aspx which is content page of MasterPage
i have update panel at test.aspx
when asynchronous postback happens at this test.aspx update panel it also loads MasterPage Page_Load
i want to prevent this (it should not also load MasterPage Page_Load)
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Oct 15, 2010
When an asynchronous postback happened inside update panel, another postback happens also for MasterPagenot only update panel embedded page .I want to prevent this MasterPage postback . is this possible ?think like i have a MasterPage and another page which is test.aspx which is content page of MasterPagei have update panel at test.aspxwhen asynchronous postback happens at this test.aspx update panel it also loads
MasterPage Page_Loadi want to prevent this (it should not also load MasterPage Page_Load)
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Jun 28, 2010
We have a nested master page which we have made it as a seperate class library.(Becoz many projects use the same master page) Initially we had all our css files,skin files, images inside the Master page project itself. But now we wanted the themes to be global and moved it out to wwwroot as mentioned in the below link.
http://quickstarts.asp.net/QuickStartv20/aspnet/doc/themes/themes.aspx#global
The Masterpage has user controls out of which one user control has the telerik menu. The css is not getting set for that particular user control. We use relative path for setting the style sheet link. But it is not getting set. Its still referring to the old path. But all the skin files, images are pointing to the new global location. Except for the telerik menu rest all is aligned according to the style sheet.
When i do view source, the link to style sheet is pointing to the old location. I dunno why this happening. Is this a telerik issue or i am going wrong somewhere.
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Jan 25, 2011
I'm trying to set profiles/themes using a basepage to allow the colour of my site to change for users. I can do this on a single page but I'm trying to do this site wide and am getting an error.
I've been watching http://www.asp.net/general/videos/how-do-i-create-user-selectable-themes-for-a-web-site this tutorial
but I'm getting errors at the final step...
System.NullReferenceException was unhandled by user code Message="Object reference not set to an instance of an object." Source="App_Code.gflsvdcc" StackTrace: at BasePage.OnPreInit(EventArgs e) in D:WebsitesBalticQuarter19.01.11App_CodeBasePage.vb:line
9 at System.Web.UI.Page.PerformPreInit() at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) InnerException:
is the error, The error occurs because of the line 9 =
9 - Me.Theme = Request.Form(Me.Master.FindControl("DropDownList1").UniqueID)
If I insert this instead of the text above the colours change on the site.
Me.Theme = Request.Form("ctl00$DropDownList1")[code].....
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Apr 4, 2010
I am tring to send form values to a page from a user control. I included the user control in a master page.When i use page.previouspage it can not get value. is there any way to send form data to a page from a user control included in a master page?
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Oct 21, 2010
I have atleast 10 websites that have different css,html,javasacripts and webconfig. But the same code behind files.With this design everything is hard to maintain. So I decided to work on it and I started moving all the queries in the code beghind file to stored procedures. Since every website uses the same database.
What I have decided is to make use of themes and multiple master pages? IS this the best way to go about it?
Also lets say I have two templates. There is site A and site B. both using different templates. And have pages Home About Us and Contact.
Now would I be creating three different masterpages? for each template so 6 in total? ( since none of the templates are supposed to look the same)
or Should I just create two masterpages? if so how would I manage the html of the page so it looks different?
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Jul 19, 2010
when i leave my page idle for about 2 minutes.
When i do a postback from my linkbutton it fails.
The browser then shows "Internet Explorer cannot display this webpage" I then also receive a Request Time Out in the event log.
Does anyone have similar experience with this, not sure what could be causing this since it happens on all pages in my application.
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Feb 2, 2011
I have a Menu control in my master page, which I dynamicly add items to in each content page:
[Code]....
how can I call the method if it's in the content page?
I thought about saving in the ViewState something that will mark it was clicked, but the MenuItemClicked event is fired after Page_Load event is fired.
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Jul 24, 2010
Let me set this up:I have a master page. I have a regular aspx page - this page contains a Menu and a User Control.When I click on the Menu Item, it fires my click event. This will post back. The Master Page Uses Placeholder Controls where I dynamicaly create Label Controls with information and add them to the Placeholders. These contain data with tooltips. This works great. After the Master Page and Web Page load, it will then fire the Click Event from the Menu.The problem:The Click event will update data in the database, This data may effect the values that are created on the Master Page that are placed in the Placeholder controls. I can't seem to figure out how to change that data.
What I have tried:I have created a reference to my Master Page on my Web Page. In the Click Event after I have made changes to the Database, I call the function on the master page that Creates all the data and places them in the place holders. It Runs, but nothing changes on my page.Am I going about this wrong? Is there another way of doing this? I terrible work around, would be to just reload the whole page after I do an update.
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Sep 22, 2010
This is my first experience with themes.I've created a skin file for a textbox and the defined theme is only visible at runtime.Is this the way theme works or I am missing something?
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Jan 18, 2010
a) Assuming a page has a master page associated with it, then all controls (those declared in master page and those declared in content page) created during design time are assigned declarative values only during an Init event? I'm assuming this since to my understanding controls need first to be put into the control tree before they can be assigned their declarative values? And when page has a master page associated with it, then aren't page's controls put into the control tree only during the Pre_Init or perhaps even during the Init event? Then if that is the case, then isn't the earliest that these controls can be assigned their declarative values during Init event?
b) Assuming our page is associated with Master page and also uses a theme --> skin files are also applied during an Init event, so I assume that during an Init event Asp.Net first initializes controls to their declarative values and only then applies skin rules to them?
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Sep 21, 2010
I have a below Page title in my master page
<title>My Test Application Name®</title>
It renders Fine with Register symbol after the text "My Test Application Name" on start of the page but on any postback the title turn into My Test Application Name® Kindly let me know what can i do with minimal effort to fix this issue
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May 27, 2010
I'm using the following syntax to bind to a div element:
<div id="previewdiv"><%=Preview%></div>
Where Preview is a property on my page.The catch is that I'm creating this in Javascript on a new page in an onclick event. On the server side, I'm able to reference the new page via this property but for some reason when the page is postback the variable is getting set to the default initialized value and not to the value that I set in my page, i.e Preview = string. When I postback a second time then the page will be updated with the value I set.I could perhaps move the code to the Init but I need to get values from controls to Initialize this property.
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Apr 12, 2010
What i am trying to do here is to show a couple of validation messages in form of a bulletlist, so i have a Div on my master page containing a asp:bulletlist. Like this:
<div>
<asp:BulletedList ID="blstValidationErrorMessage" runat="server" BulletStyle="Disc">
</asp:BulletedList>
</div>
When i then click the Save button from any of my pages (inside the main contentPlaceHolder) i create a list of messages and give this list as datasouce like this:
blstValidationErrorMessage.DataSource = validationMessageCollection;
blstValidationErrorMessage.DataBind();
The save button is located inside an updatepanel:
asp:UpdatePanel runat="server" ID="UpdatePanel" ChildrenAsTriggers="true" UpdateMode="Conditional">
Nothing happens, i can see that the datasource of the bulletlist contains X items, the problems must arise because the Save button is inside an update panel and the elements outside this updatepanel (master page controls for example) is not refreshed.
So my question is, how do i make the bulletlist refresh after the postback?
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Jan 31, 2011
i created Master page which has got mainNavigator panel on top of page that is a web user control(BuildMenu.ascx). i am filling UC Menu in master page's loading :
[code]...
Every post back BuildManu.ascx is loading every time tihs is really bored me. How can i solve it. I want to do only one time load BuildMenu.ascx (in master page)
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May 18, 2010
I am building a website in which all of the site layout is in Master page and the content of the site is in the inherited pages. I have various links for navigation in which i simple use Response.Redirect to transfer to different pages. Now the problem is that I want to put the content place holder inside Ajax Update panel so that the postbacks are Asynchronous and I want to show the postback by an animated image inside Update Panel progress control. The problem is that I am unable to achieve this result and the entire page is posted back and rendered again. I have placed the content place holder inside the Ajax control toolkit's Update panel but it does not work. Is there any way that I can change the content of the content place holder to a new page with asynchronous postback.
[URL]
I have same problem, can anyone write a code project exemple
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Dec 21, 2010
Sometimes master page makes the application slow according to the page load time in respect to individual page.
How to overcome this problem?
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Mar 18, 2010
I have an ASP.NET page using the AJAX library. There is a dropdownlist inside an UpdatePanel, which on index changing is supposed to update a different UpdatePanel to modify a grid control.But after the page first comes up, and you adjust the ddl, the entire page postbacks, followed by a (correct) partial postback. After this one time, every other usage of the ddl performs correctly, trigger partial postbacks.
Both the panel and the ddl are being added from code. The UP is Conditional updates and ChildrenAsTriggers = true. The dropdownlist is AutoPostBack true and has an event set up on SelectedIndexChanged.So what is going on? I've tried adjusting every setting I can think of and still the page completely refreshes once, then works fine after that.
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Dec 15, 2013
some code thats for bind to the database  is working correctly ,but master-content page that same  code does not work correctly.
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Jan 5, 2011
My Project is a normal web site, not a Web Project, and I am using VS 2005.
I am trying to define common Master Page Type in app_code which has an area to display error messages and the like. Very simple.
I added the following in app_code:
[Code]....
Also, I added the following in Master Page Source Declaration:
[Code]....
Also, I added the controls tblrowErrMsg and lblErrMsg as server controls to the Master Page.
Why I am doing this ?
This will allow me to display error messages from nearly any where inside the code in code-behined, app_code, and other core Class Projects (DLL).
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