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Invalid postback or callback argument. Event validation is enabled using '

... One more option: implement IPostBackEventHandler and call js __doPostBack('<%= UniqueId.ToString() %>',arg) – gdbdable May 22 '14 at 7:11 ...
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Host 'xxx.xx.xxx.xxx' is not allowed to connect to this MySQL server

...CREATE USER 'monty'@'localhost' IDENTIFIED BY 'some_pass'; mysql> GRANT ALL PRIVILEGES ON *.* TO 'monty'@'localhost' -> WITH GRANT OPTION; mysql> CREATE USER 'monty'@'%' IDENTIFIED BY 'some_pass'; mysql> GRANT ALL PRIVILEGES ON *.* TO 'monty'@'%' -> WITH GRANT OPTION; ...
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How to run a single RSpec test?

... Usually I do: rspec ./spec/controllers/groups_controller_spec.rb:42 Where 42 represents the line of the test I want to run. EDIT1: You could also use tags. See here. EDIT 2: Try: bundle exec rspec ./spec/controllers/gro...
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Cannot overwrite model once compiled Mongoose

...y have a schema defined, and then you are defining the schema again. Generally what you should do is instantiate the schema once, and then have a global object call it when it needs it. For example: user_model.js var mongoose = require('mongoose'); var Schema = mongoose.Schema; var userSchema...
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How to get current date & time in MySQL?

Is there a value or command like DATETIME that I can use in a manual query to insert the current date and time? 10 Answers...
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Examples of Algorithms which has O(1), O(n log n) and O(log n) complexities

...p of Statements with Time complexity as given in the question, here is a small list - O(1) time Accessing Array Index (int a = ARR[5];) Inserting a node in Linked List Pushing and Poping on Stack Insertion and Removal from Queue Finding out the parent or left/right child of a node in a tree store...
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How can sbt pull dependency artifacts from git?

I've heard (and I know I've seen examples too, if only I can remember where) that sbt can obtain dependencies from a git repo. ...
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How to determine equality for two JavaScript objects?

...y = function() { if (c === undefined) c = a * b // imagine * is really expensive return c; } } In this above case, c is not really important to determine whether any two instances of MyClass are equal, only a and b are important. In some cases c might vary between instance...
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How to generate the JPA entity Metamodel?

...etamodel Generator jar in the classpath and compiler level>=1.6 that is all you need build the project and metamodel will be generated automatically. In case of IDE Eclipse 1. goto Project->Properties->Java Compiler->Annotation Processing and enable it. 2. Expand Annotation Processing...
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Order data frame rows according to vector with specific order

...work as long as your target contains exactly the same elements as df$name, and neither contain duplicate values. From ?match: match returns a vector of the positions of (first) matches of its first argument in its second. Therefore match finds the row numbers that matches target's elements, and...