command

问题 I've got a UserControl that contains a button and some other controls: <UserControl> <StackPanel> <Button x:Name="button" /> ... </StackPanel> </UserControl> When I create a new instance of that control, I want to get at the Button's Command property: <my:GreatUserControl TheButton.Command="{Binding SomeCommandHere}"> </my:GreatUserControl> Of course, the "TheButton.Command" thing doesn't work. So my question is: Using XAML, how can I set the .Command property of the button inside my user

问题 I have installed phalcon extension.It was installed successfully but the phalcon command not working. following Error shown. "iMac:project Atomix$ phalcon -sh: phalcon: command not found" I have Followed instruction from Phalcon official website.it works on windows and Linux perfectly but not in mac os. 回答1: Install Phalcon in Mac OS X from Scratch Keep in mind that Phalcon is a PHP Framework that improves the power of PHP, it means that Phalcon needs an Apache Web Server running PHP and a

问题 This might seem like a silly question but I haven't been able to find a clear answer. This website states that the dash is optional in ps aux However, ps aux works but ps -aux brings up the error no user named 'x' . Any ideas what the issue may be here? Running Mac 10.8.2. Thanks 回答1: man ps will give you this: The biggest change is in the interpretation of the -u option, which now displays processes belonging to the specified username(s). Thus, "ps -aux" will fail (unless you want to know

问题 I have found the result of 'top' is different from result of in standard linux.I have searched on the web a little bit but I can not find my answer. For example, following is the partial result of top in my android: PID CPU% S #THR VSS RSS PCY UID Name 814 2% R 1 940K 372K fg root top 110 1% S 58 185000K 59216K fg system system_server 31 0% S 1 0K 0K fg root vsync_workqueue 49 0% S 1 0K 0K fg root file-storage 52 0% S 1 0K 0K fg root gp2a_wq 178 0% S 9 98476K 23820K fg system com.android

问题 In my django app I am writing a custom management command which will create an instance of an object based on the args passed and have the option of saving it to the database based on whether an option --save is passed or not. I've got a lot of help on this from the django documentation itself. Have also got important pointers from here about how to pass multiple arguments and here about how to have options. from optparse import make_option class Command(BaseCommand): option_list =

问题 I have Menu in my app. I'm visualizing it using hierarchical data template: <MenuItem Header="Main menu" ItemsSource="{Binding ApplicationMenu}" > <MenuItem.ItemTemplate> <HierarchicalDataTemplate DataType="{x:Type tm:RMenuItem}" ItemsSource="{Binding Path=ChildrenItems}"> <MenuItem Header="{Binding Name}" Command="{Binding RunOperationCommand}" /> </HierarchicalDataTemplate> </MenuItem.ItemTemplate> </MenuItem> menu looks like as it should, but Command for each menu item is not fired! Even

问题 I have Menu in my app. I'm visualizing it using hierarchical data template: <MenuItem Header="Main menu" ItemsSource="{Binding ApplicationMenu}" > <MenuItem.ItemTemplate> <HierarchicalDataTemplate DataType="{x:Type tm:RMenuItem}" ItemsSource="{Binding Path=ChildrenItems}"> <MenuItem Header="{Binding Name}" Command="{Binding RunOperationCommand}" /> </HierarchicalDataTemplate> </MenuItem.ItemTemplate> </MenuItem> menu looks like as it should, but Command for each menu item is not fired! Even

问题 This is MVVM application. There is a window and related view model class. There is TextBox , Button and ListBox on form. Button is bound to DelegateCommand that has CanExecute function. Idea is that user enters some data in text box, presses button and data is appended to list box. I would like to enable command (and button) when user enters correct data in TextBox . Things work like this now: CanExecute() method contains code that checks if data in property bound to text box is correct. Text

问题 Note: This is a question-with-answer in order to document a technique that others might find useful, and in order to perhaps become aware of others’ even better solutions. Do feel free to add critique or questions as comments. Also do feel free to add additional answers. :) How can I display a messagebox by typing a single Windows command, e.g. in the Run dialog from the Start menu, or in the [cmd.exe] command interpreter? 回答1: One way is to use apparently undocumented functionality, namely

问题 I want to issue a native system command from a Scala program, and perhaps trap the output. ("ls" comes to mind. There may be other ways to get directory information without issuing the command, but that's beside the point of my question.) It would correspond to os.system(...) in Python. I've looked in "Programming in Scala". I've looked in O'Reilly's "Programming Scala". I've Googled several combinations of terms. No luck yet. Can someone out there give me an example, or point me at a