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Select TreeView Node on right click before displaying ContextMenu
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Depending on the way the tree was populated, the sender and the e.Source values may vary.
One of the possible solutions is to use e.OriginalSource and find TreeViewItem using the VisualTreeHelper:
private void OnPreviewMouseRightButtonDown(object sender, MouseButtonEventArgs e)
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How to set current working directory to the directory of the script in bash?
... If you called the script as ./script, . is the correct directory, and changing to . it will also end up in the very directory where script is located, i.e. in the current working directory.
– ndim
Aug 27 '14 at 20:10
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How to add a new row to datagridview programmatically
...ata source ? is it a datatable? if so you can add the row to the datatable and then refresh the data source
– Habib
Apr 8 '12 at 15:19
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SSL Error: CERT_UNTRUSTED while using npm command
I am trying to install express framework using npm command but getting following error.
7 Answers
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Print a string as hex bytes?
I have this string: Hello world !! and I want to print it using Python as 48:65:6c:6c:6f:20:77:6f:72:6c:64:20:21:21 .
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Regular expression to match URLs in Java
...fully within RegexBuddy. However, when I copied it as Java String flavor and pasted it into Java code, it does not work. The following class prints false :
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What does $_ mean in PowerShell?
...he current value in the pipe line, which is called $PSItem in Powershell 3 and newer.
1,2,3 | %{ write-host $_ }
or
1,2,3 | %{ write-host $PSItem }
For example in the above code the %{} block is called for every value in the array. The $_ or $PSItem variable will contain the current value...
What's the purpose of SQL keyword “AS”?
...ll keyword. As example: JDBC 4.0. Depending of using aliases w/ 'AS cause' and w/o you will receive different behavior - see this answer stackoverflow.com/a/4271250/814304. I would like to recommend ALWAYS use the full form of semantic to avoid such issues.
– iMysak
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Android: Getting a file URI from a content URI?
In my app the user is to select an audio file which the app then handles. The problem is that in order for the app to do what I want it to do with the audio files, I need the URI to be in file format. When I use Android's native music player to browse for the audio file in the app, the URI is a cont...
How to convert a double to long without casting?
... d; // x = 1234
This will be faster than going via the wrapper classes - and more importantly, it's more readable. Now, if you need rounding other than "always towards zero" you'll need slightly more complicated code.
shar...