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Fragment is not being replaced but put on top of the previous one
...out file. You should create a container (e.g. a FrameLayout) in the layout and then add the fragment programatically using FragmentTransaction.
FragmentTransaction.replace expects the id of the container that contains the fragment and not the id of the fragment as the first parameter. So you should...
Are class names in CSS selectors case sensitive?
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CSS selectors are generally case-insensitive; this includes class and ID selectors.
But HTML class names are case-sensitive (see the attribute definition), and that's causing a mismatch in your second example. This has not changed in HTML5.1
This is because the case-sensitivity of selecto...
Entity Framework - Invalid Column Name '*_ID"
I've narrowed this down to some issue between Code First and Database first EF, but I'm not sure how to fix it. I'll try to be as clear as I can, but I honestly am missing some of the understanding here myself. This is Entity Framework 4.4
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What are sessions? How do they work?
...lication development, using python. I am coming across the terms 'cookies' and 'sessions'. I understand cookies in that they store some info in a key value pair on the browser. But I have a little confusion regarding sessions, in a session too we store data in a cookie on the user's browser.
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Get the _id of inserted document in Mongo database in NodeJS
...ToInsert, function(err,docsInserted){
console.log(docsInserted);
});
and check the console to see what I mean.
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How can you represent inheritance in a database?
...ar basis.
The database will not be able to enforce which attributes apply and which don't, since there is no metadata to define which attributes belong to which subtypes.
You also cannot enforce NOT NULL on attributes of a subtype that should be mandatory. You would have to handle this in your app...
Linq to Entities join vs groupjoin
... [b1, b2]
C []
So Join produces a flat (tabular) result of parent and child values.
GroupJoin produces a list of entries in the first list, each with a group of joined entries in the second list.
That's why Join is the equivalent of INNER JOIN in SQL: there are no entries for C. While Group...
How to set caret(cursor) position in contenteditable element (div)?
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In most browsers, you need the Range and Selection objects. You specify each of the selection boundaries as a node and an offset within that node. For example, to set the caret to the fifth character of the second line of text, you'd do the following:
functi...
Move to another EditText when Soft Keyboard Next is clicked on Android
...st be move to the Password. Then, from Password, it must move to the right and so on. Can you help me on how to code it?
18...
How to get Activity's content view?
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this.getWindow().getDecorView().findViewById(android.R.id.content)
or
this.findViewById(android.R.id.content)
or
this.findViewById(android.R.id.content).getRootView()
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