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MVVM in WPF - How to alert ViewModel of changes in Model… or should I?

...ke this: // Attach EventHandler PlayerModel.PropertyChanged += PlayerModel_PropertyChanged; ... // When property gets changed in the Model, raise the PropertyChanged // event of the ViewModel copy of the property PlayerModel_PropertyChanged(object sender, PropertyChangedEventArgs e) { if (e....
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Unexpected Caching of AJAX results in IE8

... not as simple to solve. The trick is to use Sys.Net.WebRequestManager.add_invokingRequest method in the event handler change the request url: networkRequestEventArgs._webRequest._url = networkRequestEventArgs._webRequest._url + '&nocache=' + new Date().getMilliseconds(); I've blogged about...
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Toggle button using two image on different state

... <ToggleButton android:id="@+id/toggle" android:layout_width="wrap_content" android:layout_height="wrap_content" android:background="@drawable/check" <!--check.xml--> android:layout_margin="10dp" android:textOn="" android:textOff="...
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Can't access object property, even though it shows up in a console log

...cess, but on the very next line of code, I can't access it with config.col_id_3 (see the "undefined" in the screenshot?). Can anyone explain this? I can get access to every other property except field_id_4 as well. ...
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Android: View.setID(int id) programmatically - how to avoid ID conflicts?

...same id number in the same hierarchy, then a call to findViewById([repeated_id]) would return the first view set with that one repeated id. That's what I meant. – kaneda Jun 19 '13 at 23:33 ...
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Python super() raises TypeError

...You have to design any methods that need to multiply-inherit (most notably __init__) to pass through arguments in a clean and sensible way, otherwise you'll get TypeErrors or worse debugging problems when someone tries to multiply-inherit using your class. Unless you've really designed to support MI...
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How to convert a unix timestamp (seconds since epoch) to Ruby DateTime?

...cessary instead of DateTime. So use Time.strptime("1318996912345",'%Q').to_f and you will see the milliseconds preserved, while DateTime.strptime("1318996912345",'%Q').to_f does not preserve it. – skensell Feb 22 '17 at 15:20 ...
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How to select a node using XPath if sibling node has a specific value?

...rhaps because the question was for sibling.. ;-) – hr_117 Jun 11 '13 at 12:16 4 Seems I actually ...
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Is it better to use Enumerable.Empty() as opposed to new List() to initialize an IEnumerable

...ems as an Enumerable: public class Person { private IList<Role> _roles; public Person() { this._roles = new List<Role>(); } public string Name { get; set; } public void AddRole(Role role) { //implementation } public IEnumerable<...
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Python Regex - How to Get Positions and Values of Matches

...the span & group are indexed for multi capture groups in a regex regex_with_3_groups=r"([a-z])([0-9]+)([A-Z])" for match in re.finditer(regex_with_3_groups, string): for idx in range(0, 4): print(match.span(idx), match.group(idx)) ...