It is easy to display input errors using a field's validation message in a view. Simply call ModelState.AddModelError() passing in the property ID and error message, then return the View(). [...]
This demonstrates how to configure one-to-many and many-to-many relationships in a code-first Entity Framework ASP.Net MVC application. The sample application is a blog containing posts, post categories (one-to-many), and post [...]
In order for a drop-down list in an MVC View to be populated with data from the model, one method is to add the data to a model (or to [...]
When using Page.Header.Controls.Add to add something to a page header, or possibly other scenarios where you add a control to a collection, you may receive the following error message: The [...]
To check if an object is of a certain type in c#, simply use the is statement: if (myPerson is Person) { // Variable is of type Person }
It is sometimes necessary to pass a variable to a SetTimeout() callback function. By the time the callback occurs, the original variable may no longer exist, so passing a copy [...]
To check if an element has an ID: if ($(this).is('[id]') { // Has ID console.log('Has ID: ' + $(this).attr('id')); } else { // Has no ID console.log('Has no ID.'); }
For the equivalent instructions for the Avada theme, see here. Creating a WordPress child theme is very straightforward, and it allows you to make major customizations that will not be [...]
For the equivalent instructions for the Enfold theme, see here. Creating a WordPress child theme is very straightforward, and it allows you to make major customizations that will not be [...]
Preface Please see Entity Framework Select Functions Explained for an overview of each available select method. This post only covers a handful of them. Selecting Single Record by Primary Key [...]