To make the generated markup work with Knockout, I need to add a couple of attributes to the generated markup. The binding declaration specifies the type of binding and then the property to be used. Looking back at the generated markup, you see how the class attribute is added. Following the same process, I can modify the EditorFor function, as shown in the code here:. Using the markup generated out of the box from the scaffolding, this is the only change needed to add Knockout binding.
Data binding with Angular is similar. I can add either an ng-model attribute or a data-ng-model attribute. The data-ng-model attribute will keep the markup HTML5-compliant, but the ng-bind is still commonly used. In either case, the value for the attribute is simply the name of the property to bind. There are a couple of more minor tweaks that come into play for defining the application and controller. Please refer to the sample code for the full working example to see these changes in context.
Because scaffolding uses T4 to generate the output, I can change what gets generated to prevent having to edit every View generated. The templates used are stored under the installation for Visual Studio. You could edit these templates directly, but this would affect every project you work on from your computer, and anyone else working on the project would not benefit from the edits made to the templates.
Instead, you should add the T4 templates to the project and have the local copy override the standard implementation. The language is reflected in the file name. You only need the templates for one language. When you invoke scaffolding from Visual Studio, it will first look in the CodeTemplates folder for a template to use.
T4 is a powerful tool for generating text in general, not just code. These are very minor tweaks to the templates. The Tangible T4 Editor bit. When you open the Edit. Much of the code driving the template is conditional processing for handling special cases such as supporting partial pages and handling special types of properties such as foreign keys, enums and Booleans.
Figure 7 shows a sample of the template in Visual Studio when using an appropriate extension. The code driving the template is hidden in the collapsed sections, making it easier to see what the output will be. Instead, look for the generated markup that you want to change. In this case, I care about six different statements.
Once you make the updates to support your specific client-side framework, all new views generated with the template will support your framework automatically. When I examined the view that was generated, I skipped over the ValidationMessageFor function calls that are made for each property. These calls produce placeholders to display any validation messages created when client-side validations are evaluated.
These validations are based on the Validation attributes added to the model. If you try to submit the form without entering any data, the required field validators will trigger to prevent the submission. If you prefer a different validation strategy client-side, such as bootstrap form validation bit.
Instead, I leave it to the MVC framework to use the most appropriate input control for the property specified, based on data type or attributes such as UIHint. Let's walk through these features. As with a great many of my tutorial posts , this post has a sample project over on GitHub that contains the code we're going to write. Check it out! In short, display and editor templates are used to standardize the layout shown to the user when editing or displaying certain types or classes.
Here's some classes we'll be using they are Entity Framework generated classes in the sample project, but here I've removed extras like navigation properties for clarity :. We'll be using this schema and these classes to show how we can use display and editor templates. We want it to look like this:.
We can accomplish this using display templates. Further, the name of the view by default should be the name of the object you want to use it as the template for.
First let's create the simplest display template in this project. Let's create a display template for the DateTime object that will force these dates to display in that format.
We'll use this partial in just a second when we create the partial for User. For now let's take a look at a simple display template for a user-created object, the one for Address:. All we've done is specified how we want Address objects and DateTime structs to be laid out when they are displayed to the user. We'll use each of these display templates inside another display template, the one for User:.
The really interesting part of all this comes now. Ales Potocnik Hahonina Ales Potocnik Hahonina 2, 1 1 gold badge 25 25 silver badges 32 32 bronze badges. I did end up doing a quick and dirty solutions where a template List. It manually compiles a template name from generic and contained type and calls that as a partial, passing the model. Not proud of it but only solutions I can think of. Any suggestion to do it "the right way" welcome. So I ended up with templates named List [MyModel].
Add a comment. Active Oldest Votes. Improve this answer. I haven't checked this code but I would create different Views for each subtype and do something dumb like: return View MyModel. Rob Kent Rob Kent 5, 4 4 gold badges 31 31 silver badges 52 52 bronze badges.
Yeah, that is why I ended up with but inside a template since Html. EditorFor or Html. DisplayFor would be called from another template. You could do this in the main view: model MyViewModel Html. Darin Dimitrov Darin Dimitrov k gold badges silver badges bronze badges. That's exactly my issue : I don't want Mvc to loop through items. Sign up or log in Sign up using Google. Sign up using Facebook.
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