command

I am practicing on how to write a WPF application with MVVM pattern. So far I haven't used command in my code. In my Viewmodel I implement INotifyPropertyChanged and used (event PropertyChangedEventHandler PropertyChanged ) to fire events. Why do I feel like I still miss some concept of WPF about how to use command? When is it appropriate to use commands? Commands in WPF are used to abstract an user-triggered action (such as clicking a Button or pressing a key. here's a basic example: Suppose you want to search for employees in your database when the user clicks the "Search" button, or hits

I want to trigger a shell command in eider exec() or system() from PHP script but it is a task that take a while to complete, is there a way to trigger it and continue running the PHP page load without delay? Edit: I am on CentOS 6, PHP 5.3 Depends on the OS you are using. For linux: pclose(popen("php somefile.php &","r")); notice the amperstand at the end (very important). For windows: pclose(popen("start php.exe somefile.php","r")); here the start keyword is important. Hope this helps. Darren Newton This doesn't answer your question directly, but you should consider doing your video

在使用ECSHOP发送邮件的时候提示ERROR：need rcpt command！产生这个问题的原因是模板和编码不一致造成的，打开你的ECSHOP后台修改邮件服务器设置。 ECSHOP支持后面三种邮件编码: 国际化编码（utf8）、简体中文、 繁体中文，如果你的网站程序是UTF-8就选择第一个选项，GBK版本就选择简单中文，繁体版就选择繁体中文。 程序版本编码可以在起始页最下方的编码中查看。 来源： oschina 链接： https://my.oschina.net/u/1269590/blog/198889

I have the following Data Template applied to a ListBox: <DataTemplate x:Key="MyTemplate" DataType="{x:Type DAL:Person}"> <StackPanel Orientation="Horizontal"> <Button Content="X" Command="{x:Static cmd:MyCommands.Remove}"/> <TextBlock Text="{Binding Person.FullName}" /> </StackPanel> </DataTemplate> When I click on the button the command gets fired but the ListBoxItem doesn't get selected. How do I force it to get selected, so that I can get the selected item in my "executed" method? Thanks A better way, since you're not really interested in selecting the item (because it will quickly get

I would like to call a Command when a TabItem of my TabControl is selected. Is there a way to do it without breaking the MVVM pattern ? Use an AttachedCommand Behavior , which will let you bind a Command to WPF events <TabControl ... local:CommandBehavior.Event="SelectionChanged" local:CommandBehavior.Command="{Binding TabChangedCommand}" /> Of course, if you're using the MVVM design pattern and binding SelectedItem or SelectedIndex , you could also run the command in the PropertyChanged event void MyViewModel_PropertyChanged(object sender, PropertyChangedEventArgs e) { if (e.PropertyName ==