Jumptlist in WPF and win7 explained-优快云博客

本文介绍Windows7中的一项新特性——任务栏跳转列表。通过.NET Framework 4.0提供的API，可以轻松地定制跳转列表中的项目，如最近打开的文件或自定义任务。示例展示了如何创建一个检查更新的任务，并在点击时显示消息。

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THis article is based on the study of the page http://wpftutorial.net/Jumplists.html

and it demonstrate the use of a cool feature that is called Jumplist which is avaialbe in Windows 7.

here is the code

Introduction

Windows 7 provides a new taskbar feature for applications called jumplists. They appear, when you right-click on a application icon in the taskbar. By default you see a list of recent files opened and two entries to launch and detach the application.

.NET 4.0 provides a managed API that allows you to easily manipulate the entries in the jumplist.

How to add a Task to the Jumplist

A jumplist is nothing more than a categorizes list of links to files that can be launched by the user. The links are calledJumpTasks. They can be parametrized with a title, description, icon, filepath and command line arguments.

In the following sample I create a new JumpList and add a task to the list that launches the sample application, but with a command line argument. If the application is launched with an argument, it shows a MessageBox instead.

 
public partial class App : Application
{
    protected override void OnStartup(StartupEventArgs e)
    {
 
        if (e.Args.Count() > 0)
        {
            MessageBox.Show("You have the latest version.");
            Shutdown();
        }
 
        JumpTask task = new JumpTask
        {
            Title = "Check for Updates",
            Arguments = "/update",
            Description = "Cheks for Software Updates",
            CustomCategory = "Actions",
            IconResourcePath = Assembly.GetEntryAssembly().CodeBase,
            ApplicationPath = Assembly.GetEntryAssembly().CodeBase 
        };
 
        JumpList jumpList = new JumpList();
        jumpList.JumpItems.Add(task);
        jumpList.ShowFrequentCategory = false;
        jumpList.ShowRecentCategory = false;
 
        JumpList.SetJumpList(Application.Current, jumpList);
    }
}