How To Work With Master Page That Is Attached To The Page Via The Page's Basepage
Nov 2, 2010
In my ASP.Net web application, I have a base page that implements functionality that spans all pages of the web application and my web pages derive from this base page. Since there is a single master page for the entire website, I don't want to attach the master page in each of the web pages. So I attached the Master page via the basepage's OnPreInit method as follows:
protected override void OnPreInit(EventArgs e)
{
this.MasterPageFile = "~/Site.master";
base.OnPreInit(e);
}
However, when I switch to Designer view, I get the "Master Page Error"; The page has controls that require a Master Page reference, but noe is specified. Correct the problem in Code View.When I run the application, the webpage shows up correctly.What should be done so that the designer shows up correctly without having to go and set the master page explicitly in each of the web pages?
BTW, I am on Visual Studio 2010 and .Net 4.0
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Jun 2, 2010
I have a MasterPage project which is a class library project (it includes themes, style sheets, menus etc) and all applications use them.
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Now i need to move this BasePage class from my application to the Master Page Project so that all the projects/applications can reuse the same code.
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Page
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Could not load type '~/Master/App_Code/BasePage<Page>'.
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Feb 9, 2010
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(or StylesheetTheme="Print" accordingly) [code]...
App_Themes directory contained only Default
The application runs ok but every time I want to modified something the first time I open the page in the design view shows me the following error:The page contains markup that is not valid when attached to a Master Page correct the problem in the code view
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[Code]....
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Object reference not set to an instance of an object.
Description:
An unhandled exception occurred during the execution of the current web request. review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.
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