JudsonMurray · October 24, 2025 15:58 · Mar 3, 2020
diff --git a/ReadonlyBool.cshtml b/ReadonlyBool.cshtml
@@ -0,0 +1,25 @@
+@* We can link the readonly html attribute to a bool defined in Razor code. 
+ 
+This is a neat trick if you want to use the same view for different purposes.
+
+For example, I have an AddProduct page that also acts as the EditProduct page. In "EditProduct" mode, some of the form fields that are 
+used to add a new product are no longer editable (such as the product name). 
+
+This is achieved using the html readonly attribute in the relevant fields set against a single boolean variable "@editMode". 
+This variable is defined at the top of the page and can be set multiple ways through the controller: ViewBag/ViewModel, etc.
+
+This approach reduces the need for Razor "if" statements and duplicate code. Example code below. *@
+
+@model Gist.Models.Product
+
+@{
+    bool editMode = ViewBag.IsEdit ?? false; 
+}
+
+@using (Html.BeginForm("AddProduct", "Home", FormMethod.Post, new { @id = "formAddProduit" }))
+{
+  <div class="row">
+      <label class="col-md-4 control-label">Product name</label>
+      <input class="col-md-8" name="ProductName" type="text" value="@(Model.ProductName)" readonly="@editMode" />
+  </div>
+}