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Check if element exists in jQuery [duplicate]
...an element exists if the element is created by .append() method?
$('elemId').length doesn't work for me.
8 Answers
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Android: how to handle button click
Having a solid experience in non-Java and non-Android area, I'm learning Android.
10 Answers
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Display open transactions in MySQL
I did some queries without a commit. Then the application was stopped.
4 Answers
4
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XDocument or XmlDocument
...urprised none of the answers so far mentions the fact that XmlDocument provides no line information, while XDocument does (through the IXmlLineInfo interface).
This can be a critical feature in some cases (for example if you want to report errors in an XML, or keep track of where elements are defin...
How to implement WiX installer upgrade?
...a localised error message, and also prevents upgrading an already existing identical version (i.e. only lower versions are upgraded):
<MajorUpgrade
AllowDowngrades="no" DowngradeErrorMessage="!(loc.NewerVersionInstalled)"
AllowSameVersionUpgrades="no"
/>
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Inserting HTML elements with JavaScript
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Using document fragments is very quick; faster than creating elements outside of the DOM and in certain situations faster than innerHTML.
Even though innerHTML is used within the function, it's all happening outside of the DOM so it's much faster than you'd think...
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NullPointerException accessing views in onCreate()
...tion is to move the code to the fragment onCreateView(), calling findViewById() on the inflated fragment layout rootView:
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_main, cont...
How to identify all stored procedures referring a particular table
...ich are refreing this table. Now I have have to drop this table as well as identify all sp's which are referring this table. I am facing difficulty to find list of all sp's. Please suggest some query by assuming that the table name is 'x' and database is sql server 2005.
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SQL Server Insert if not exists
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instead of below Code
BEGIN
INSERT INTO EmailsRecebidos (De, Assunto, Data)
VALUES (@_DE, @_ASSUNTO, @_DATA)
WHERE NOT EXISTS ( SELECT * FROM EmailsRecebidos
WHERE De = @_DE
AND Assunto = @_ASSUNTO
AND Data = @_D...
How do I use Linq to obtain a unique list of properties from a list of objects?
I'm trying to use Linq to return a list of ids given a list of objects where the id is a property. I'd like to be able to do this without looping through each object and pulling out the unique ids that I find.
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