70 Advanced C# Interview Questions

Advanced C# Interview Questions for Architects and Designers.

How do you get the Key of a HashTable entry WITHOUT foreach?
How do you schedule a conditional ContinueWith
How to do offline synchronization using C#.net with SQL Server 2008
What is it called when trying to overload a function based purely on the return type?
What is the purpose of :: in c#
How do you check for permissions to write to a directory or file?
How do you get the level of a treeviewitem in WPF C#?
How do you search for a list of files using wildcard
How to do optional parameters in LINQ?

What is it that makes Enum.HasFlag so slow?
What is the purpose of a marker interface?
What is sprintf in c#?
How do you get the list of open file handles by process in C#?
How do you search for a specific cell in a DataGridView?
What is Java alternative for .NET’s XmlSerializer
What is the purpose of a private class in c#?
How do you pass a char and a char* from C# to C++/CLI?
How do you check for type equality (is operator or x.GetType() == typeof(xType)) in IronPython?
How do you get the localhost name in PowerShell?
How to do pagination in an NHibernate SQL query with DISTINCT

What is lazy initialization? (c# .net)
What is the purpose of Attributes in C#?
How do you pass a char and a char* from C# to C++/CLI?
How do you check if a class is readonly in c#?
How do you get the month number from the year and week number in c#?
How do you search for the Group types in the Visual Tree?
How to do paging a single row data in ASP.NET
What is Limit for Total Number of Records in Datatable?
What is the purpose of backgroundWorker ?
How do you check if a DataGrid is empty?
How do you get the name of a generic class using reflection?
How do you search through an ItemCollection of a Pivot control
How to do paging with simpledb?

What is Linq and what does it do?
What is the purpose of Control.GetPreferredSize method?
What is the inverse of bitwise AND in C#?
How do you check if a file is in use?
How do you get the name of the parent class from a UserControl?
How do you search through an ItemCollection of a Pivot control
How to do Python’s zip in C#?
What is LINQ to SQL template? What is the advantage of it?
What is the purpose of delegates in .NET
How to get keydown and button click to do the same thing?
How do you check if a number is positive or negative in c#?
How do you get the path of a random folder?
How do you search XML when / is in it? C#?
How to do regex match in a string with quotes in C#

What is the purpose of double implying?
Can a method do a return on the calling method?
How do you check if an entity is the first element of a foreach loop
How do you get the Process.MainWindowHandle when window is hidden
How do you see the hex values of a string in a VS2008 watch window?
How to do RLE (run length encoding) in C# on a byte array?
What is main use of Enumeration?
What is the purpose of Double.IsNaN(double d)?
Can I give default value to parameters in C# functions?
How do you check if datasource is null?
How do you get the properties of an object using reflection?
How do you see the hex values of a string in a VS2008 watch window?
How to do robust SerialPort programming with .NET / C#?
How do you span columns in C#?
What is major process of delegates?
What is the purpose of event listeners?
How do you DYNAMICALLY cast in C# and return for a property
How do you check if Debug is enabled in web.config
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