Combine layouts

Web/Views/Shared/DisplayTemplates/Boolean.cshtml

@@ -0,0 +1,4 @@
+@{
+	Layout = "~/Views/Shared/DisplayTemplates/_FieldLayout.cshtml";
+}
+@Html.Encode(Model)

Web/Views/Shared/DisplayTemplates/Date.cshtml

@@ -1,5 +1,10 @@
-@model DateTime
+@using System.Globalization
+@model DateTime
 @{
 	Layout = "~/Views/Shared/DisplayTemplates/_FieldLayout.cshtml";
+    var val = 
+        ViewData.ModelMetadata.DisplayFormatString != null
+        ?string.Format(ViewData.ModelMetadata.DisplayFormatString, Model) 
+        : Model.ToString(CultureInfo.InvariantCulture);
 }
-@Html.Encode(string.Format(ViewData.ModelMetadata.DisplayFormatString, Model))
+@Html.Encode(val)

Web/Views/Shared/DisplayTemplates/DateTime.cshtml

@@ -1,5 +1,10 @@
-@model DateTime
+@using System.Globalization
+@model DateTime
 @{
 	Layout = "~/Views/Shared/DisplayTemplates/_FieldLayout.cshtml";
+    var val = 
+        ViewData.ModelMetadata.DisplayFormatString != null
+        ?string.Format(ViewData.ModelMetadata.DisplayFormatString, Model) 
+        : Model.ToString(CultureInfo.InvariantCulture);
 }
-@Html.Encode(string.Format(ViewData.ModelMetadata.DisplayFormatString, Model))
+@Html.Encode(val)

Web/Views/Shared/DisplayTemplates/EmailAddress.cshtml

@@ -0,0 +1,4 @@
+@{
+	Layout = "~/Views/Shared/DisplayTemplates/_FieldLayout.cshtml";
+}
+<a href="mailto:@Model">@Html.Encode(Model)</a>