System.Web.UI.MasterPage.CreateMasterPage C# (CSharp) Method

		internal static MasterPage CreateMasterPage (TemplateControl owner, HttpContext context,
							     string masterPageFile, IDictionary contentTemplateCollection)
		{
#if TARGET_JVM
			MasterPage masterPage = MasterPageParser.GetCompiledMasterInstance (masterPageFile,
											    owner.Page.MapPath (masterPageFile),
											    context);
#else
			MasterPage masterPage = BuildManager.CreateInstanceFromVirtualPath (masterPageFile, typeof (MasterPage)) as MasterPage;
#endif
			if (masterPage == null)
				throw new HttpException ("Failed to create MasterPage instance for '" + masterPageFile + "'.");

			if (contentTemplateCollection != null) {
				foreach (string templateName in contentTemplateCollection.Keys) {
					if (masterPage.ContentTemplates [templateName] == null)
						masterPage.ContentTemplates [templateName] = contentTemplateCollection[templateName];
				}
			}
			
			masterPage.Page = owner.Page;
			masterPage.InitializeAsUserControlInternal ();

			List <string> placeholders = masterPage.placeholders;
			if (contentTemplateCollection != null && placeholders != null && placeholders.Count > 0) {
				foreach (string templateName in contentTemplateCollection.Keys) {
					if (!placeholders.Contains (templateName.ToLowerInvariant ())) {
						throw new HttpException (
							String.Format ("Cannot find ContentPlaceHolder '{0}' in the master page '{1}'",
								       templateName, masterPageFile));
					}
				}
			}

			return masterPage;
		}