WPF Update ListView ItemsSource - C#

Introduction

This guide provides an example and explanation of how to update the ItemsSource of a ListView in WPF (Windows Presentation Foundation) using C#. The ItemsSource property is used to bind a collection of data objects to the ListView. Updating the ItemsSource allows data to be dynamically refreshed and displayed in the ListView.

Example

Here is an example of how to update the ItemsSource of a ListView in WPF using C#:

// Assuming you have a ListView named "myListView" in your XAML code.

// Create a new collection or get an existing collection of items
List<MyItem> items = new List<MyItem>();

// Add some items to the collection
items.Add(new MyItem { Name = "Item 1", Value = 10 });
items.Add(new MyItem { Name = "Item 2", Value = 20 });
items.Add(new MyItem { Name = "Item 3", Value = 30 });

// Set the updated collection as the ItemsSource of the ListView
myListView.ItemsSource = items;

In this example, we are creating a new collection of MyItem objects and adding some items to it. Then, we set this collection as the ItemsSource of the myListView ListView control. The ListView will automatically refresh and display the updated data.

Explanation

• First, you need to create a collection of objects that you want to display in the ListView. In this example, we create a List<MyItem> to hold a collection of MyItem objects.
• Next, you populate the collection with the desired items. You can add items manually or retrieve them from a data source.
• Finally, you set the collection as the ItemsSource property of the ListView. This establishes the binding between the ListView and the collection, causing the items to be displayed in the ListView.

Whenever you make changes to the underlying data collection and want to refresh the ListView, you simply update the collection and set it as the ItemsSource again. The ListView will automatically reflect the changes.

Make sure that MyItem is a class with properties that you want to display in the ListView. For example:

public class MyItem
{
    public string Name { get; set; }
    public int Value { get; set; }
}

Conclusion

Updating the ItemsSource property of a ListView in WPF allows you to dynamically refresh and display data in the ListView. By following the example and explanation provided in this guide, you can easily achieve this functionality in your own WPF applications using C#.

For more information on working with ListView in WPF, refer to the official Microsoft documentation