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What is the use of ErrorProvider Control?
.NET Interview Questions and Answers
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What is the use of ErrorProvider Control?
The ErrorProvider control is used to indicate invalid data on a data entry form. Using this control, you can attach error messages that display next to the control when the data is invalid, as seen in the following image. A red circle with an exclamation point blinks, and when the user mouses over the icon, the error message is displayed as a tooltip.
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Other Interview Questions
- What is .NET?
- How many languages .NET is supporting now?
- How is .NET able to support multiple languages?
- How ASP .NET different from ASP?
- What is smart navigation?
- What is view state?
- How do you validate the controls in an ASP .NET page?
- Can the validation be done in the server side? Or this can be done only in the Client side?
- How to manage pagination in a page?
- What is ADO .NET and what is difference between ADO and ADO.NET?
- Observations between VB.NET and VC#.NET?
- Advantages of migrating to VB.NET ?
- Advantages of VB.NET
- Using ActiveX Control in .Net
- What is Machine.config?
- What is Web.config?
- What is the difference between ADO and ADO.NET?
- What is the difference between VB and VB.NET?
- What is a Strong Name?
- What is a Manifest?
- Creating a Key Pair?
- What is the difference between "using System.Data;" and directly adding the reference from "Add References Dialog Box"?
- What is GAC?
- What is a Metadata?
- What is managed code and managed data?
- What is .NET / .NET Framework?
- What is Reflection?
- What is "Common Type System" (CTS)?
- What is "Common Language Specification" (CLS)?
- What is "Common Language Runtime" (CLR)?
- What are Attributes?
- What are the Types of Assemblies?
- What is an Intermediate language?
- ASP.NET Authentication Providers and IIS Security
- What is the difference between ASP and ASP.NET?
- Using COM Component in .Net
- What is an assembly?
- What is a Web Service?
- webFarm Vs webGardens
- What is the difference between a namespace and assembly name?
- What’s a Windows process?
- What’s typical about a Windows process in regards to memory allocation?
- Explain what relationship is between a Process, Application Domain, and Application?
- What are possible implementations of distributed applications in .NET?
- What are the consideration in deciding to use .NET Remoting or ASP.NET Web Services?
- What’s a proxy of the server object in .NET Remoting?
- What are remotable objects in .NET Remoting?
- What are channels in .NET Remoting?
- What security measures exist for .NET Remoting in System.Runtime.Remoting?
- What is a formatter?
- Choosing between HTTP and TCP for protocols and Binary and SOAP for formatters, what are the trade-offs?
- What’s SingleCall activation mode used for?
- What’s Singleton activation mode?
- How do you define the lease of the object?
- Can you configure a .NET Remoting object via XML file?
- How can you automatically generate interface for the remotable object in .NET with Microsoft tools?
- What is Delegation?
- What is "Microsoft Intermediate Language" (MSIL)?
- Differences between Datagrid, Datalist and Repeater?
- I am constantly writing the drawing procedures with System.Drawing.Graphics, but having to use the try and dispose blocks is too time-consuming with Graphics objects. Can I automate this?
- How do you trigger the Paint event in System.Drawing?
- With these events, why wouldn’t Microsoft combine Invalidate and Paint, so that you wouldn’t have to tell it to repaint, and then to force it to repaint?
- How can you assign an RGB color to a System.Drawing.Color object?
- What class does Icon derive from? Isn’t it just a Bitmap with a wrapper name around it?
- Before in my VB app I would just load the icons from DLL. How can I load the icons provided by .NET dynamically?
- When displaying fonts, what’s the difference between pixels, points and ems?
- What is the difference between VB 6 and VB.NET?
- What are the authentication methods in .NET?
- What is Serialization in .NET?
- What’s the use of System.Diagnostics.Process class?
- Difference Abstract class and Interface
- re-clarification of object based:
- How to achieve Polymorphism in VB.Net?
- Difference between Class And Interface
- What doesu mean by .NET framework?
- What is assembly?
- What is namespaces?
- NET framework overview
- What is the base class of .NET?
- Explain assemblies.
- Name some of the languages .NET support?
- ADO.NET features? Benefits? Drawbacks?
- How many types of exception handlers are there in .NET?
- Difference between Panel and GroupBox classes?
- What is the base class of Button control?
- What is Response object? How is it related to ASP’s Response object?
- What is IIS? Have you used it?
- Main differences between ASP and ASP.NET.
- What are the advantages and drawbacks of using ADO.NET?
- Why The JavaScript Validation Not Run on the Asp.Net Button But Run SuccessFully On The HTML Button
- what is the difference between user control an custom control? advantages/disadvantages?
- What’s the difference between Response.Write() andResponse.Output.Write()?
- What is the use of ErrorProvider Control?
- What is CLR?
- What is Delegate and what is it used for ?
- How is meant by DLL ?
- Which DLL translate XML to SQL in IIS?
- Can anyone tell me about Secure Socket Layer? How to make use of the technology?
- What is the Differnce Between Response.write & response.output.Write
- Which dll is required to translate XML to SQL in IIS ?
- What is an interface and what is an abstract class? Please, expand by examples of using both. Explain why.
- What is serialization, how it works in .NET?
- What should one do to make class serializable?
- What exactly is being serialized when you perform serialization?
- How does output caching work in ASP.NET?
- What is connection pooling and how do you make your application use it?
- What are different methods of session maintenance in ASP.NET?
- What is Viewstate?
- Can any object be stored in a Viewstate?
- What should you do to store an object in a Viewstate?
- Explain how Viewstate is being formed and how it’s stored on client.
- What do you know about ADO.NET’s objects and methods?
- Explain DataSet.AcceptChanges and DataAdapter.Update methods.
- When we go for html server controls and when we go for web server controls?
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