Useful snippet for debugging javascript. It prints out key-value pairs of associative array. In PHP your have function print_r($array), but in Javascript you still have to make your own function.
If you want to apply the same action for multiple selectors in jQuery, you should write down their identificators separated by comma. It can be as simple ID of elements, their classes or something more difficult.
There are at least 3 ways to find out if the column in table exists in MS SQL server. It's a common task for developers or administrators when you need to modify table.
You can get list of available NuGet packages for Visual Studio using Package Manager Console (in VS – Tools / NuGet Package Manager / Package Manager Console).
If you have installed MSSQL Server without a key and chosen an Evaluation version, once it will be stopped because of this. Of course, on this day you will have to show something in your environment.
Here's a useful snippet in C#. This method gets all the images from variable type String. It can be HTML or XML text with tags <img src="path_to_image">
Reading and querying XML data is good with Link to XML in C#. LINQ to XML provides an in-memory XML programming interface that leverages the .NET Language-Integrated Query (LINQ) Framework.
I used Advanced Workflow Actions for SharePoint Designer 2010 from iLoveSharePoint for Workflows in SharePoint site. And one of used by me activities was "Execute PowerShell Script Action".
Find tag which contains some text you're looking for using jQuery. It's a common task if you want to modify some elements on page but you can't modify html-code of page.
If you want to customize a NewForm for SharePoint list so, that users can add attachements in the same interface as other form fields, you should place control for adding attachments to a form. The problem is that this is not described and you really have to rewrite already half-prepared control.
