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Invalid postback or callback argument. Event validation is enabled using '
...
The problem is that ASP.NET does not get to know about this extra or removed listitem.
You got an number of options (listed below):
Disable eventvalidation (bad idea, because you lose a little of security that come with very little cost).
Use ASP.NET Ajax UpdatePanel. (Put the listb...
Application Skeleton to support multiple screens
... like the Samsung Galaxy Tab is classified as large (larger than 4 inches)
Extra-large applies to large devices, for example large tablets
Android defines four generalised screen densities:
Qualifier Description Nominal value
ldpi low density 120 ppi
md...
MongoDB with redis
...fit from the flexibility of MongoDB for main persistent data, and from the extra features provided by Redis (low latency, item expiration, queues, pub/sub, atomic blocks, etc ...). It is indeed a good combination.
Please note you should never run a Redis and MongoDB server on the same machine. Mong...
Fastest way to check if a string is JSON in PHP?
I need a really, really fast method of checking if a string is JSON or not. I feel like this is not the best way:
30 Answer...
How can I get the client's IP address in ASP.NET MVC?
...Controller
{
public ActionResult Index()
{
string ip = Request.UserHostAddress;
...
}
}
}
Example: From within a helper class:
using System.Web;
namespace Mvc.Helpers
{
public static class HelperClass
{
public static string...
What linux shell command returns a part of a string? [duplicate]
I want to find a linux command that can return a part of the string. In most programming languages, it's the substr() function. Does bash have any command that can be used for this purpose. I want to be able to do something like this...
substr "abcdefg" 2 3 - prints cde .
...
How do I check if a string is a number (float)?
What is the best possible way to check if a string can be represented as a number in Python?
33 Answers
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Continuous Integration for Ruby on Rails? [closed]
...lso RSpec, Cucumber, Jasmine, Konacha integrations, and supports arbitrary extra test commands)
Integration with Rake and/or Capistrano (uses Rake to run commands and set up DBs, support continuous deployment using Capistrano or Heroku, or anything really)
A web interface showing the status of the b...
jQuery UI dialog positioning
...
Darn, that's nice but it's deprecated- "Note: The String and Array forms are deprecated." api.jqueryui.com/dialog/#option-position So you'd need to use the position object my/at/of thingy. See the link there about "jQuery UI Position". You could get something like position...
Markdown: continue numbered list
...
Notice how in Macmade's solution, you can see an extra line of code above the "Code block".
Here are two better solutions:
Indent the code block by an extra 4 spaces (so usually 8, in this nested list example, 12). This will put the code in a <pre> element. On SO,...