In fact, the Item Collection class does not even provide a public constructor.2) The Items property is backed by a dependency property.Data binding is a mechanism in WPF applications that provides a simple and easy way for Windows Runtime apps to display and interact with data.In this mechanism, the management of data is entirely separated from the way data.We will look at how this works shortly, but before we do, we should look at the simpler, non-databound (or ) scenario…Item Collection Modes: Direct and Items Source Although the Items property is read only, the provided collection is not necessarily read only.If the source changes while the user is looking at the view, you want the view to be updated.Let’s take the same example but here, we will change the binding mode from One Way to Two Way in the XAML code. It will produce the same output − Let’s now change the Name and Age values − If you click the Show button now, it will display the updated message.
The user will see a warning message box letting him/her know that the record is about to be inserted, if the user decides not to insert the record, the grid is simply refreshed by reloading the data with dg Emp. Remove(employee); in order to delete the rows from the database.
This means that you cannot set a binding directly on the Items property.
However, you can definitely bind an Items Control to a collection of items.
Items Source = Get Employee List(); DELETE records by pressing Delete Key: When the user selects one or various rows and presses the DELETE key, the Preview Key Down is fired and the rows disappear; however, the delete action does not update the database but only the collection. It is important to mention that the program needs to know that the user is deleting a row, not only a cell content; hence, just like in the insert operation, I used a Boolean value is Being Edited which is set to false unless the user is deleting the whole row.
To set the Boolean is Being Edited to true I use the Beginning Edit event handler of the grid.