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To get the path of the current user’s temporary folder, call the GetTempPath method in the System.IO namespace: string tempPath = System.IO.Path.GetTempPath(); On Windows Vista and 7, this method will return the following path: C:UsersUserNameAppDataLocalTemp Related posts:C# Copy Folder RecursivelyCheck Valid File Path in C#Microsoft Sets Windows 7 Pricing and Upgrades Related posts: C# Copy Folder Recursively Check Valid File Path in C# Microsoft Sets Windows 7 Pricing and Upgrades

Exceptions are a construct in the .NET Framework that are (ideally) used to indicate an unexpected state in executing code. For example, when working with a database the underlying ADO.NET code that communicates with the database raises an exception if the database is offline or if the database reports an error when executing a query. Similarly, if you attempt to cast user input from one type to another – say from a string to an integer – but the user’s input is not valid, an exception will be thrown. You can also raise exceptions from your own code by using the Throw keyword. When an exception is thrown it is passed up the call stack. That is, if MethodA calls MethodB , and then MethodB raises an exception, MethodA is given the opportunity to execute code in response to the exception. Specifically, MethodA can do one of two things: it can catch the exception (using a Try … Catch block) and execute code in response to the exception being throw; or it can ignore the exception and let it percolate up the call stack. If the exception is percolated up the call stack – either by MethodA not catching the exception or by MethodA re-throwing the exception – then the exception information will be passed up to the method that called MethodA . If no method in the call stack handles the exception then it will eventually reach the ASP.NET runtime, which will display the configured error page (the Yellow Screen of Death , by default)

Partial classes and partial methods are two programming language features of .NET programming languages that make it possible for developers to extend and enhance auto-generated code. In a nutshell, partial classes allow for a single class’s members to be divided among multiple source code files. At compile-time these multiple files get combined into a single class as if the class’s members had all been specified in a single file. Partial methods are methods defined in a partial class that are (optionally) divided across two files. With partial methods one file contains the method signature – the method name, its return type, and its input parameters – while the body is (optionally) defined in a separate file. If the partial method’s body is not defined then the compiler automatically removes the partial method signature and all calls to the method at compile-time. Partial classes and partial methods are most commonly used in auto-generated code. The framework or tool that is auto-generating the code can create the auto-generated classes as partial classes. If the developer using the auto-generated code wants to extend the functionality of the class by adding new methods or properties she can do so by creating a new partial class file and putting her additions there. By having these additions in a separate file there’s no risk of the tool overwriting the developer’s changes when regenerating the code. Regardless of whether you know the ins and outs of partial classes you use them every time you create an ASP.NET web page using a code-behind class. And if you routinely use auto-generated libraries, like LINQ to SQL or Typed DataSets, then it behooves you to be familiar with both partial classes and partial methods, as they offer opportunities for safely extending the functionality of auto-generated code. Read on to learn more about how these features work and how you can put them to work

Sometimes you may need to display or print an input string that contains binary characters.  The following function replaces all binary characters in a string with a blank.  You can easily modify this method to remove other undesirable characters (such as high-ASCII) if needed. Strip Function static public string CleanString( string s ) { if