Customize application.master
Posted by Steve Pietrek on January 29, 2008
I have been doing some research on customizing application.master. I found a good KB on Microsoft’s web site listing two ways to customize application.master.
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Customize the files in the Layouts folder (recommended)
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Create a custom Layouts folder
The two methods above work well.
I have been messing around with an application development method using a feature, HttpModule, and SPWebConfigModification. The premise of the feature is for every page, in the PreInit event, I check to see if the page’s current MasterPageFile is application.master. If it is, I set the MasterPageFile to my custom application.master. I plan on blogging on this method soon.
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Joel Jalbert said
I have code samples for you!
namespace CustomDesign
{
public class CustomPageInit : IHttpModule
{
public void Init(HttpApplication context)
{
context.PreRequestHandlerExecute += new EventHandler(context_PreRequestHandlerExecute);
}
void context_PreRequestHandlerExecute(object sender, EventArgs e)
{
HttpApplication httpApp = sender as HttpApplication;
if (httpApp != null)
{
Page page = httpApp.Context.CurrentHandler as Page;
if (page != null)
{
page.PreInit += new EventHandler(page_PreInit);
}
}
}
void page_PreInit(object sender, EventArgs e)
{
Page page = sender as Page;
if (page.MasterPageFile != null)
{
if (page.MasterPageFile.ToLower().Contains("application.master")) {
SPWeb objWeb = SPContext.Current.Web;
if (objWeb.MasterUrl.Contains("default.custom.master"))
{
objWeb.AllowUnsafeUpdates = true;
objWeb.Update();
string strTmp = page.MasterPageFile.ToLower().Replace("application.master", "application.custom.master");
page.MasterPageFile = strTmp;
}
}
}
}
public void Dispose()
{
}
}
}
In the web.config, append that line into the httpmodule section