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Java - JPA - @Version annotation
...sage triggers creation of an entity and there are multiple instances of an application listens to the message. I just want to avoid the unique constraint violation error..
– Manu
Jan 19 '16 at 6:28
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Reading file contents on the client-side in javascript in various browsers
...nnerHTML = "error reading file";
}
}
Original answer
There does not appear to be a way to do this in WebKit (thus, Safari and Chrome). The only keys that a File object has are fileName and fileSize. According to the commit message for the File and FileList support, these are inspired by Mozil...
Invoke(Delegate)
...ound thread and this would mostly work. Sometimes it would just cause your app to exit because you were effectively interrupting the GUI thread while it was doing something else. This is the Cross Threaded Exception - imagine trying to update a TextBox while the GUI is painting something else.
Wh...
How would I create a UIAlertView in Swift?
...ass ViewController: UIViewController {
@IBAction func showAlertButtonTapped(_ sender: UIButton) {
// create the alert
let alert = UIAlertController(title: "My Title", message: "This is my message.", preferredStyle: UIAlertController.Style.alert)
// add an action (butto...
Split list into multiple lists with fixed number of elements
... splitInner(Nil, xs, n).reverse
}
}
object ListSplitterTest extends App {
val res = ListSplitter.split(List(1,2,3,4,5,6,7), 2)
println(res)
}
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Iterate over model instance field names and values in template
...chaelB Hmm. I have not been able to get "field.value" to work; the fields appear to be database fields, not the actual column data. I had to use a filter which called getattr(object, name). Which version of Django does that work for you?
– Dr. Ernie
Apr 1 '1...
How do I create a transparent Activity on Android?
... can also use @android:color/transparent in later Android versions.)
Then apply the style to your activity, for example:
<activity android:name=".SampleActivity" android:theme="@style/Theme.Transparent">
...
</activity>
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Loading local JSON file
...
I had the same need (to test my angularjs app), and the only way I found is to use require.js:
var json = require('./data.json'); //(with path)
note: the file is loaded once, further calls will use the cache.
More on reading files with nodejs: http://docs.nodejitsu....
Change Git repository directory location.
...sing the method as above. However, when you click on the repository in the application it will be unable to find it. To resolve this simply click on the blue circle with the !, select Find It and then browse to the new directory.
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Alternative to iFrames with HTML5
...patible among browser versions, it creates additional challenges (shrink wrapping the size of the frame to its content is tough, insanely frustrating to script into/out of, nearly impossible to style).
AJAX. As the solutions shown here prove, you can use the XMLHttpRequest object to retrieve data an...