command

I bet this has been answered many times over, but... For a simple situation where a button on a UserControl has its command property set to something like Find (ApplicationCommands.Find) how would the ViewModel handle that command? I usually see command handlers wired up with a CommandBinding that gets added to a CommandBindings collection on a UIElement, but my ViewModel doesn't derive from UIElement (should it?). The commands themselves don't expose events to notify when they've been executed, so where should I wire up to get that information? EDIT: I'd like to use stock WPF to solve the

Let's say I have this variable: word = "habit" which command in VBA will allow me to count how many characters are there in this variable (in my case it's 5). Important: the variable "word" contains only one word, no spaces, but may have contain numbers and hyphens. Do you mean counting the number of characters in a string? That's very simple Dim strWord As String Dim lngNumberOfCharacters as Long strWord = "habit" lngNumberOfCharacters = Len(strWord) Debug.Print lngNumberOfCharacters Len(word) Although that's not what your question title asks =) Len is what you want. word = "habit" length =

I'm new to UEFI application development. My requirement is that, I need to run an UEFI shell command from my UEFI application ( app.efi ) source code. Need guidance on how I can do this. Example, cp command in UEFI shell is used to copy a file from one path to another. I want to do this programmatically inside my application ( app.efi ) source code. EDIT: I'm looking for something similar to system("command"); function in Linux . How to achieve this? Calling a UEFI shell command from a UEFI application can be done using the EFI_SHELL_EXECUTE function of EFI_SHELL_PROTOCOL , defined under

I've installed gulp globally (npm install gulp -g). But this isn't working I think. When I'm doing gulp test on my local program it works fine. But when I'm doing a gulp test on my (the same) program from github (on Jenkins), it gives the following error. It won't recognize the gulp command. Can someone help me? Thanks Error in Jenkins: [EnvInject] - Loading node environment variables. Building in workspace C:\Program Files (x86)\Jenkins\workspace\project1 > C:\Program Files (x86)\Git\bin\git.exe rev-parse --is-inside-work-tree # timeout=10 Fetching changes from the remote Git repository > C:

In vimtutor Lesson 2.1: DELETION COMMANDS, there is a note after the #4 item: The letter d will appear on the last line of the screen as you type it. Vim is waiting for you to type w . If you see another character than d you typed something wrong; press <ESC> and start over. However, I do not see intermediate commands in the last line as the note says. How do I enable this? What option should I set in my .vimrc ? You can use :set showcmd That will display the commands as you type it in Vim. The same can also be put into .vimrc Max This 'last line' is the line at bottom of screen. If you don't

The only solution I've encountered is to use regular expressions and recursively replace the first directory until you get a word with no slashes. gsub("/\\w*/","/",gsub("/\\w*/","/",getwd())) Is there anything slightly more elegant? (and more portable?) Your example code doesn't work for me, but you're probably looking for either basename or dirname : > getwd() [1] "C:/cvswork/data" > basename(getwd()) [1] "data" > dirname(getwd()) [1] "C:/cvswork" If you didn't know basename (and I didn't), you could have used this: tail(strsplit(getwd(), "/")[[1]], 1) 来源： https://stackoverflow.com/questions