command

问题 I have a Button in a DataTemplate that is bound to a Command in my ViewModel. The button also has an EventTrigger that kicks off a Storyboard that hides the edit controls (of which the button is a part.) The Storyboard works fine if I pick up the PreviewMouseDown event, but the Command never gets called. If I pick up the MouseDown event in my EventTrigger, the Command works, but the Storyboard doesn't execute. How can I get both the Command and the Storyboard to execute when the button is

问题 I've seen other questions that deal with this, but never any explicit code describing the fix. I can't get a button inside of my ItemTemplate to bind to ANY command anywhere. Very frustrating. I am a complete MVVM newbie, btw. Here's my Window XAML. <Window x:Class="RET.CMS.Printing.App.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:local="clr-namespace:RET.CMS.Printing.App.ViewModel" Height="350"

问题 I am using a command button from JSF. I don't know why I can't call my javascript function. NO alert will show when I click the button. <h:commandButton id="login" value="Login" action="login" onclick="return checkPasswords();" type="Submit" /> My Javascript function: function checkPasswords() { alert("test"); return false; } 回答1: Check your generated code (open the page -> view source) Check your javascript console (Firefox) for errors make sure your function is callable from a normal <input

问题 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

问题 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. 回答1: 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

问题 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 ? 回答1: You can use :set showcmd That will display the commands as you type it in

问题 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?) 回答1: 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" 回答2: If you didn't know basename (and

问题 Developer Options can be enabled by tapping 7 times on build number. I am using adb shell input tap x y command to tap on build number. is there any adb command to tap on build number 7 times? 回答1: much easier way: adb shell settings put global development_settings_enabled 1 回答2: That info is stored in a shared preference of the settings app. Which is located at: /data/user_de/0/com.android.settings/shared_prefs/development.xml it has a boolean named show stored, if set to true, developer

问题 I have the following line to run a batch file, Process process = Runtime.getRuntime().exec("cmd /c start rake.bat"); But I want it to run in the background and not display the command line to the user. How can I change it to do this? The problem is that the command window opens and intrupts the programs GUI. I just want the command window to not be visible while it is executing the batch file. 回答1: Removing the 'start' completely will do what you want (as this is what is creating the window):

问题 I'm trying to create a program allowing me to execute a command through a terminal (which is OmxPlayer for raspberry pi if you want to know) with arguments, but i'd want to be able to interact with it once I have launched the command. For example i'd want to do : omxplayer -win x1 y1 x2 y2 and then be able to press "p" to pause the video/audio media I already have something that can launch the omxplayer with arguments (actually it's "ls" but it should work exactly the same way) but I don't