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Paging a collection with LINQ

Paging a collection with LINQ

How do you page through a collection in LINQ given that you have a startIndex and a count ?…


Generate list of all possible permutations of a string

How would I go about generating a list of all possible permutations of a string between x and y characters in length, containing a variable list of characters. Any language would work, but it should b…


Unload a COM control when working in VB6 IDE

Part of my everyday work is maintaining and extending legacy VB6 applications. A common engine is written in C/C++ and VB6 uses these functions in order to improve performance. When it comes to asyn…


c# - WinForms ComboBox data binding gotcha

Assume you are doing something like the following List<string> myitems=new List<string>{"Item 1", "Item 2", "Item 3"}; ComboBox box=new ComboBox(); box.DataSource=myitems; Combo…



Deploying SQL Server Databases from Test to Live

I wonder how you guys manage deployment of a database between 2 SQL Servers, specifically SQL Server 2005. Now, there is a development and a live one. As this should be part of a buildscript(standar…


php - Encrypting Passwords

What is the fastest, yet secure way to encrypt passwords in(PHP preferred), and for which ever method you choose is it portable? In other words if I later migrate my website to a different server wil…


c# - How to create a new object instance from a Type

One may not always know the Type of an object at compile-time, but may need to create an instance of the Type.How do you get a new object instance from a Type ?…


math - Solving a linear equation

I need to programmatically solve a system of linear equations in C, Objective C, or(if needed) C++. Here's an example of the equations:-44.3940=a*50.0+b*37.0+tx-45.3049=a*43.0+b*39.0+tx-44.9594=a*52.0…


algorithm - Efficiently get sorted sums of a sorted list

You have an ascending list of numbers, what is the most efficient algorithm you can think of to get the ascending list of sums of every two numbers in that list. Duplicates in the resulting list are…


Are PHP Variables passed by value or by reference?

Are PHP variables passed by value or by reference?…




how example and from multiple java not for using get