command

Is binding IsEnabled optional when binding Command?

由 不打扰是莪最后的温柔 提交于 2019-12-07 04:58:56
问题 I noticed that the following code: <Button Content="_Timbres..." Command="{Binding Path=ShowTimbresCommand}" IsEnabled="{Binding Path=CanExecuteShowTimbresCommand}"/> behaves equally as: <Button Content="_Timbres..." Command="{Binding Path=ShowTimbresCommand}"> Meaning that the CanExecuteShowTimbresCommand is automatically bound to the IsEnabled property. Is that true and why? 回答1: Usually controls which accept a Command will set IsEnabled to false if the command's CanExecute is false , that

NSSpeechRecognizer example

由 人盡茶涼 提交于 2019-12-07 04:55:52
问题 Ok so I need to do this: Wait for command, "Goodnight". Then run an action. Can someone explain how do accomplish this? 回答1: Try this website: http://www.cocoadev.com/index.pl?NSSpeechRecognizer And modify as such: NSSpeechRecognizer *listen; NSArray *cmds = [NSArray arrayWithObjects:@"goodnight",nil]; listen = [[NSSpeechRecognizer alloc] init]; [listen setCommands:cmds]; [listen setDelegate:self]; [listen setListensInForegroundOnly:NO]; [listen startListening]; [listen

Can't use django management commands because of Import Errors when haystack tries to import multiligualmodel

由 会有一股神秘感。 提交于 2019-12-07 04:11:24
I'm using django-haystack for searching on my site. I'm also using django multilingual model for I18n. I import MultilingualModel in search_indexes.py I ca run all manangement commands as long as I don't have haystack in the INSTALLED_APPS. When haystack is in the INSTALLED_APPS and try to run syncdb or migrate (and several other management commands) I'm always getting: django.core.exceptions.ImproperlyConfigured: ImportError haystack: cannot import name MultilingualModel This is likely related to the hacks done in haystack.autodiscover() . This behavior is documented here: http://docs

Is there a command which will print the path of the file in the repo-browser in the command line?

由 半城伤御伤魂 提交于 2019-12-07 03:35:53
问题 Is there a command which will print the path of the file in the repo-browser in the command line? SVN diff only prints the file name. Thank you. 回答1: svn info path/to/filename will show you several pieces of information. The ones you're looking for are URL and Repository Root: $ svn info mydialog.h [...] URL: http://svn.server.net/my-repo/trunk/ui/mydialog.h Repository Root: http://svn.server.net/my-repo [...] URL is the absolute position of the file, and Repository Root is the base URL of

Why is my Perl system command giving me a syntax error?

由 懵懂的女人 提交于 2019-12-07 03:24:29
The Perl script that contains a Unix command to grep the ethernet NICs cannot be executed within the script! I have tried "qx" , $var and "system" but it does not seem to work! The codes: #!/usr/bin/perl use warnings; use strict; use Term::ANSIColor; print "\nYou are now in Showing Ethernet Cards!\n\n"; print "**************************\n"; print "|Ethernet Cards Available|\n"; print "**************************\n"; print "\nThe Ethernet Cards that are available are: "; my $ex = system ('ifconfig | awk '{print $1}' | egrep "eth|lo"'); print "$ex"; When executed the error "syntax error at .

Vim replace two words with one another

由 怎甘沉沦 提交于 2019-12-07 03:01:04
问题 How would one replace all instances of 'foo' with 'bar' and 'bar' with 'foo' in vim? 回答1: Aside from using a temporary word for the change, you could also use abolish plugin like this: :%SubVert/{foo,bar}/{bar,foo}/g 回答2: Take a look at this: how to write only one pattern to exchange two strings in two-ways in vim :s/foo\|bar/\={'foo':'bar','bar':'foo'}[submatch(0)]/g 回答3: :%s/foo/bbaarr/g :%s/bar/foo/g :%s/bbaarr/foo/g It must exist an smartest way to do it, but this one will work for sure !

Auto 'zz' in vim after a jump

由 蓝咒 提交于 2019-12-07 02:57:48
问题 After I make a jump to anywhere in the world, whether in the current file or a different file, is it possible to make vim automatically run zz (re-center on current line)? I want this after things like search, ctrl-o and ctrl-i ... and pretty much any movement other than hjkl . Thanks. 回答1: Voila: " Center screen on next/previous selection. nnoremap n nzz nnoremap N Nzz " Last and next jump should center too. nnoremap <C-o> <C-o>zz nnoremap <C-i> <C-i>zz 来源： https://stackoverflow.com

Copy-Item problem with destination

由 主宰稳场 提交于 2019-12-07 02:46:27
I have two Copy-Item commands Copy-Item "C:\Test\folder1" "\\remote_machine\destination" -Recurse Copy-Item "C:\Test\folder2" "\\remote_machine\destination" -Recurse folder1 and folder2 contain folders and files Both commands are similar, but I get different results Copy content of folder1 to destination - OK Copy folder2 with all content to destination - \remote_machine\destination\folder2 - FAIL UPDATE: I don't get any error. Problem is about path to second folder. I want content of both folders in one destination folder. It's problem with PowerShell - http://groups.google.com/group

Clear console with command

由 强颜欢笑 提交于 2019-12-07 02:46:24
问题 Like this is my console currently with lots of line in it Is there any javascript or jquery command with which i can clear the console. I don't want to hit clear button with mouse. Only a code command is required. 回答1: Try this: console.clear(); You can use this code in your scripts. Read more about console. Note that in Google Chrome, console.clear() has no effect if the user has selected "Preserve log upon navigation" in the settings. Update : As noticed @evolutionxbox you can use just

What is the accepted pattern for WPF commanding in MVVM?

由 99封情书 提交于 2019-12-07 01:16:49
问题 I'm working on a WPF app and I understand the command pattern pretty well, but I've found that there are several different implementations of the command pattern for MVVM. There's Josh Smith's implementation in his WPF sample app, the DelegateCommand from Prism, and the CommandBindings implementation. My question is, what is the generally accepted best practice for using commands with MVVM? My application uses Prism so DelegateCommand is available to us. The devs on my team are arguing about
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