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IllegalStateException: Can not perform this action after onSaveInstanceState with ViewPager
...erride
protected void onSaveInstanceState(Bundle outState) {
//No call for super(). Bug on API Level > 11.
}
Don't make the call to super() on the saveInstanceState method. This was messing things up...
This is a known bug in the support package.
If you need to save the instance and add ...
SignalR - Sending a message to a specific user using (IUserIdProvider) *NEW 2.0.0*
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SignalR provides ConnectionId for each connection. To find which connection belongs to whom (the user), we need to create a mapping between the connection and the user. This depends on how you identify a user in your application.
In SignalR 2.0, this is ...
Where are $_SESSION variables stored?
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Excellent answer! I was searching for the question: "Why do sessions expire after deleting browser cache?". And you saved my day.
– Pupil
Jun 17 '13 at 7:50
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How to set a default value with Html.TextBoxFor?
....TextBox(string name, object value) . When I tried using the Html.TextBoxFor method, my first guess was to try the following which did not work:
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LINQ to Entities does not recognize the method
...t has to be able to convert the query to an actual SQL statement. In order for that to work, you will have to restructure your query expression into an expression that Entity Framework can handle.
public System.Linq.Expressions.Expression<Func<Charity, bool>> IsSatisfied()
{
string ...
How to set a border for an HTML div tag
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Try being explicit about all the border properties. For example:
border:1px solid black;
See Border shorthand property. Although the other bits are optional some browsers don't set the width or colour to a default you'd expect. In your case I'd bet that it's the width tha...
Get selected text from a drop-down list (select box) using jQuery
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Try this:
$("#myselect :selected").text();
For an ASP.NET dropdown you can use the following selector:
$("[id*='MyDropDownId'] :selected")
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Using OR in SQLAlchemy
...you have a long list of things to OR, you can do filter(or_(User.name == v for v in ('Alice', 'Bob', 'Carl')))
– robru
Aug 26 '15 at 20:21
69
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How to provide animation when calling another activity in Android?
...ze animation when Activity B calls A. I don't need the animation xml files for this.
4 Answers
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SELECT * WHERE NOT EXISTS
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I need "WHERE NOT EXISTS" twice a year, and I always forget how to exactly use it. Thanks - this example will be bookmarked now.
– Mateng
Sep 18 '12 at 9:00
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