Can we validate a DropDownList by RequiredFieldValidator?
Yes, we can validate a DropDownList by RequiredFieldValidator. To perform this validation, we have to set the InitialValue property of RequiredFieldValidator control.
What is the difference between the Response.Write() and Response.Output.Write() methods?
The Response.Write() method allows you to write the normal output; whereas, the Response.Output.Write() method allows you to write the formatted output.
How to implement singleton design pattern in C#?
In singleton pattern, a class can only have one instance and provides access point to it globally.Eg:[csharp]Public sealed class Singleton{Private static readonly Singleton _instance = new Singleton();}[/csharp]
What are Modifiers in C#? Why can’t you specify the accessibility modifier for methods inside the interface?
Modifiers in C# are keywords that define the accessibility, behavior, and scope of classes, methods, fields, properties, and other members. They determine how a class or its members can be...
What are delegates?
Delegates are same are function pointers in C++ but the only difference is that they are type safe unlike function pointers. Delegates are required because they can be used to...
Commonly Used Types of Exceptions in .NET, C#, ASP.NET, .NET Core, and API
Exceptions are critical in C# and .NET for handling errors and ensuring robust application performance. When an error occurs, exceptions provide detailed information that helps identify the issue and manage...
What Are Generics and Delegates in C# .NET (Including .NET Core and Web API)?
Generics and Delegates are key features in C# .NET that improve flexibility, reusability, and maintainability of code. These concepts are also heavily used in .NET Core and Web API development...
What’s the difference between the System.Array.CopyTo() and System.Array.Clone() ?
Using Clone() method, we creates a new array object containing all the elements in the original array and using CopyTo() method, all the elements of existing array copies into another...
Differences Between System.String and System.Text.StringBuilder Classes in .NET and .NET Core
Differences Between System.String and System.Text.StringBuilder Classes in .NET and .NET Core In both .NET and .NET Core, you often work with strings when developing applications. Two primary classes are used...
What are Custom Control and User Control?
Custom Controls are controls generated as compiled code (Dlls), those are easier to use and can be added to toolbox. Developers can drag and drop controls to their web forms....
