VB.NET Interview Questions & Answers

  1. Question 1. What Are The Properties Should Be Given To Set Method?

    Answer :

    Class Class1
    ‘ Define a local variable to store the property value.
    [Ans: Only One Property.
    example:
    Private PropertyValue As String
    ‘ Define the property.
    Public Property Prop1() As String
    Get
    ‘ The Get property procedure is called when the value
    ‘ of a property is retrieved.
    Return PropertyValue
    End Get
    Set(ByVal Value As String)
    ‘ The Set property procedure is called when the value
    ‘ of a property is modified.
    ‘ The value to be assigned is passed in the
    ‘ argument to Set.
    PropertyValue = Value
    End Set
    End Property
    End Class

  2. Question 2. How Can We Assigns Items On Listbox So That It Will Show Rowwise Please Write The Code For It.

    Answer :

    Lisbox1.Items.Add “Prashant”
    Lisbox1.Items.Add “Chinchu”
    Lisbox1.Items.Add “Pallavi”
    Lisbox1.Items.Add “Suresh”
    Lisbox1.Items.Add “Polika”

  3. ASP.NET Interview Questions

  4. Question 3. What Is Vb.net?

    Answer :

    Vb.net is a programming language that is available in Visual Studio. Net. It contains features of visual basic which is event based programming language and also includes object oriented concepts.
    [VB.Net is a programming language which is an extension of Visual Basic to make it compliant to the Dot Net Framework. Also VB.Net is fully Object Oriented unlike Visual Basic and everything in VB.Net is an object. As it is compliant to the Dot Net Framework VB.Net can make full use of Framework Class Library provided by dot Net Framework.]

  5. Question 4. How Do You Validate Date By Using Which Validation Control?

    Answer :

    runat=”server”
    ValidationExpression=”^d{2}[/-]d{2}[/-]d{2,4}$”
    ErrorMessage=”It is not a valid date”
    ControlToValidate=”txtpatientvisitdate”
    EnableClientScript=”False”
    Display=”Dynamic”>

  6. VB.NET Tutorial

  7. Question 5. What Does Vs.net Contains ?

    Answer :

    Visual Studio .Net is basically a framework which makes easy development of codes written in Various programming languages.. It contains two things
    1.Framework Class Library: It contains various classes managed within various namespaces.
    2.Common Language Runtime: CLR is the execution engine which helps in compiling the IL code into machine code,takes care of security issues and many other critical tasks.Web pages, windows apps, console applications, Class libraries are various options which can be created using VS.net.

  8. ADO.Net Interview Questions

  9. Question 6. How Do You Rate Yourself In .net ?

    Answer :

    Based on Framework understanding and OOPS Concepts,Use of Different Component Library.

  10. Question 7. What Is Intermediate Language In .net ?

    Answer :

    .net supports CLS i. e. Common language type. its a microsoft’s feature to bring all languages near one roof. When You compile .net code it doesn’t converted into binary language, it converted into IL (Intermediate Language) also known as MSIL. And from IL to binary language converted at run time, CLR manages this process. At the runtime also it not converts whole project at time to binary, only converts that part which is going to execute, this the performance of project increases. This IL can use any language which is member of that .net studio. The assemblies (ExE, DLL) are also in IL form. So u can use any EXE or DLL created in vb.net in c#.net also.[which converts native code into byte code i.e machine understandable code.]

  11. ASP.NET Tutorial
    Windows Presentation Foundation(WPF) Interview Questions

  12. Question 8. Is Vb.net Object Oriented? What Are The Inheritances Does Vb.net Support ?

    Answer :

    yes VB.NET ia an object oriented.Vb.net supports all inheritance
    1)single inheritance
    It means Single class inheriting to single child classes
    2)multiple inheritance
    multiple classess inherits to single classes
    3)Multilevel Inheritance
    Single class inherits to one class that class inheritd to single another class
    4)Heirarichal inheritance
    Single class inherits to Multiple classes
    5)Hybrid Inheritance
    Single class inherits to different classess and that classes inherits to one class.

  13. Question 9. Difference Between Vb Dll And Assemblies In .net ?

    Answer :

    Assemblies can contain DLL and EXE both. Different versions of one DLL can be handled by assemblies. They overcome the DLL Hell problem. Assemblies Contain Manifest and Meta Data files. These are the separate files that describes the Assembly and its attributes. VB DLL is inprocess.DLL run with an exe where as DLL are not self executable.
    we can reuse DLLs .DLL are not platform independent If we have more then one Versions of a DLL we can face DLL Hell Problem.

  14. Windows CE .NET Interview Questions

  15. Question 10. How Do You Do Multithreading Application In Vb ?

    Answer :

    VB doesn’t support multithreading.
    [Its the fastest and an excellent application provided in VB.net. Due to which many operations can be done without any lapse of time. The system need not wait for an application or any task to get completed, rather it runs simultaneously.]

  16. Windows Presentation Foundation(WPF) Tutorial

  17. Question 11. What Are The Types Of Threading Models In Vb.net ?

    Answer :

    There are lot of threading model available, but we focus on Threading models that are common to win32based environments singleThreaded:There is only one thread with in the process,and it is doing all the work for the process.The process must wait for the current execution of the thread to complete before it can perform another action.
    Apartment Threading (Single Threaded Apartment)Apartment threaded means there are multiple threads within the application. In single threaded apartment (STA) each thread is isolated in a separate apartment underneath the process. The process can have any number of apartments that share data through a proxy. The application defines when and for how long the thread in each apartment should execute. All requests are serialized through the Windows message queue such that only a single apartment is accessed at a time and thus only a single thread will be executing at any one time.
    Free Threading (Multi Threaded Apartment)Free threaded applications were limited to programming languages such as C++ until the release of Microsoft .NET. The free threaded/Multi Threaded Apartment (MTA) model has a single apartment created underneath the process rather than multiple apartments. This single apartment holds multiple threads rather than just a single thread. No message queue is required because all of the threads are a part of the same apartment and can share data without a proxy.
    The developer must provide thread synchronization as part of the code to ensure that threads do not simultaneously access the same resources.

  18. Dot Net Framework Interview Questions

  19. Question 12. What Are The Advantage In Vb.net And Different Between Vb And Vb.net

    Answer :

    vb is not follow the oops concept. But vb.net follow the oops concept.
    [Adv of VB.NET
    vb is object based.vb.net is object oriented
    vb use record set for database connection
    vb.net use dataset for database connection]
    [1. VB uses vb runtime while vb.net uses CLR
    2. VB object based,vb.net is object oriented
    3. VB Suports splash screen
    4. VB Uses on error goto while vb.net uses Try.. Catch..Finally
    5. vb.Net Supports inheritance]

  20. ASP.NET Interview Questions

  21. Question 13. What Is The Difference Between Web User Control And Web Custom Control?

    Answer :

    web user control: where it predefined attribute functionality where it resides in control library
    web custom control: where it is defined by user itself and store in a custom library
    Web User Controls:
    1) Easy to Create
    2) Limited support for consumers who use visual design tool
    3) A seperate copy of the control is required in each application.
    4)Cannot be added to toolbox in Visual Studio.
    5) Good for Static Layout.
    Web Custom Controls:
    1) Harder to Create
    2) Full support for consumers
    3) Only a single copy of the control is required in the GAC
    4)Can be added
    5) Good for Dynamic Layout.

  22. Question 14. What Is An Indexed Property?

    Answer :

    you include the index parameter in the Property statement. In this example, the test_number parameter is the index for the Scores property.
    Public Class Student
    ‘ The private array of scores.
    Private m_Scores(9) As Integer
    ‘ The indexed Score property procedures.
    Public Property Score(ByVal test_number As Integer) As _ Integer
    Get
    Return m_Scores(test_number)
    End Get
    Set(ByVal Value As Integer)
    m_Scores(test_number) = Value
    End Set
    End Property
    End Class

  23. Question 15. What Is Versioning In .net?

    Answer :

    main advantage of .net is versioning and solve very critical problem.
    .net maintain one application with more then one version and also solve DLL HELL problem because it can run same application with different version at a same time[.Net have an Assembly. It gives the Portable Execution file.The main use of assembly is to maintain the Dll and exe’s.
    So sometimes the programmer confused to which is modified code.That time the assembly provide the Version.That is called versioning. It is start from 1.0.*,…….]

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  25. Question 16. What Is Dll Hell?

    Answer :

    1.Adding of a new virtual method to a class exported from a DLL can cause the following problems:
    -If class already has a virtual method B and we are adding a new one named A before it, then we are changing the table of virtual methods. Now the first virtual method in the table will be A but not B and the client program which calls B will fail without recompilation as the call of B will cause the call of A and this is another method which possibly has other parameters and return type.
    -When a class doesn?t have virtual methods and none of its base classes have, then adding of a new virtual method to it or to its base class will cause adding of the pointer for the table of virtual methods. This will cause change in the class size. So the error will occur after a client program will allocate memory for the class (an amount of memory that was required before the class has been changed) and will try to modify some of the class’ fields explicitly or implicitly. In this case, as the pointer to the table of virtual method is added to the beginning of the class, all addresses of the class fields are shifted and thus we will get an abnormal client program behavior or a runtime error.
    -In case when a class has virtual methods or any of its parent classes has, we can’t add virtual methods to classes exported from the DLL if they participate in the inheritance. We can?t add virtual methods not only to the beginning of the class declaration but also to the end of it. The problem is in shifting in the table of virtual methods. Note that even if you add a new virtual method to the end of the class declaration then the child’s virtual methods will be shifted.
    2.Adding of a new field (of any kind) to a class declaration can cause following problems:
    1.Adding of a new field to the end of a class causes class size to change as in the case of adding of a virtual method to a class that didn?t have any. The client program will allocate less memory than it is required for a new class and this will cause referencing to the memory out of the class scope.
    2.Adding of a new field between existing ones is even worse. It will case all addresses of fields after the new one to be shifted and a client application will work with the incorrect addresses while working with the fields that are situated after the new field. We also have the problem as in the previous point here.

  26. Question 17. How Does You Call And Execute A Sp In .net?

    Answer :

    Using command object we can execute a SP. Instead of sql query we have to pass the SP Name.
    [command.connection =connectionstring
    command.commandType=commandType.storedProcedure
    command.commandtext=”sp_name”
    command.executenonquery()]

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  28. Question 18. Why Datareader Is Useful?

    Answer :

    Data reader is useful when we just want to acccess datas from the database not when we want to perform DML operations. and It is useful when we want to perform forward only reading of datas.It wont requires any large volume of resources in the Front end. [Datareader is read only or forward only. So it is very fast to fetch the data from database.]

  29. ADO.Net Interview Questions

  30. Question 19. What Is The Difference Between Dataset And Recordset?

    Answer :

    A DataSet can represent an entire relational database in memory, complete with tables, relations, and views.
    -A DataSet is designed to work without any continuing connection to the original data source.
    -Data in a DataSet is bulk-loaded, rather than being loaded on demand.
    -There’s no concept of cursor types in a DataSet.
    -DataSets have no current record pointer You can use For Each loops to move through the data.
    -You can store many edits in a DataSet, and write them to the original data source in a single operation.
    -Though the DataSet is universal, other objects in ADO.NET come in different versions for different data sources.
    [1)With Data set you can retrive data from database like oracle and SQL Server and manage them in one dataset, with recordset this is not possible.
    2)All representation of Dataset is using XML while recordset uses COM.
    3)Recordset can not be transmitted on HTTP while Dataset can be.]

  31. Question 20. How Does You Get Record No From 5 To 15 From A Dataset Of 100 Records?

    Answer :

    dim dRow as data.datarow
    for i as interger = 5 to 15
    drow = dSet.Tables(0).Rows(i)
    ‘process row
    next i

  32. Question 21. What Is The Difference Between Dataset And Datareader?

    Answer :

    DataReader:
    Datareader is like a forward only recordset. It fetches one row at a time so very less Network Cost compare to DataSet(Fetches all the rows at a time). DataReader is readonly so we cannot do any transaction on them. DataReader will be the best choice where we need to show the data to the user which requires no transaction i.e reports. Due to DataReader is forward only we cannot fetch the data randomly. .NET Dataproviders optimizes the datareaders to handle the huge amount of data.

    DataSet:
    DataSet is always a bulky object that requires lot of memory space compare to DataReader. We can say the dataset as a small database because it stores the schema and data in the application memory area. DataSet fetches all data from the datasource at a time to its memory area. So we can traverse through the object to get required data like querying database.The dataset maintains the relationships among the datatables insideit. We can manipulate the realational data as XML using dataset.We can do transactions (insert/update/delete) on them and finally the modifications can be updated to the actual database. This provides impressive flexibility to the application but with the cost of memory space. DataSet maintains the original data and the modified data seperately which requires more memory space. If the amount of data in the dataset is huge then it will reduce the applications performance dramatically.
     

  33. Question 22. How Do You Declare Static Variable And How It Is Declared And What Is Its Lifetime?

    Answer :

    Static variables are declare through the Static Var1 as Integer The scop of the Var1 is within the module where its is Defined.

  34. Question 23. What Is The Difference Between Overriding And Overloading?

    Answer :

    overloading——-having same method name with different signatures.
    overriding——–methods name and signatures must be same
    [OverLoading : All the method will share the same name but it differes based on the parameter, type of parameter and number of parameter
    Overriding : The method in the derived class the has the same name in the base class and it changes the behaviour or functionality of the method in the base class.]

  35. Question 24. What Is Shadowing?

    Answer :

    When global and local varible in the same name.the local varibale in a mehod or function which use to override the global is called the shadowing.ie the Global varible is being shadowed by the local varible.

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  37. Question 25. What Is An Abstract Class?

    Answer :

    It is a class which contains at least one abstract method(A method without any implementation). Other methods can have implementations. This class can not be instantiated. It can always become a base class for other classes.

     

  38. Question 26. What Is The Difference Between Friend And Protected Friend?

    Answer :

    Protected variable will be accessed in inherited class, but instance variable of class cant access protected variable.While friend variable will be accessed in inherited class as well as instance variable of class across the project.Where we need both functionality we are using protected friend scope.
    [Protected –> Accessible ONLY by
    1.Derived classes
    2.Within the same class
    Friend –> Accessible ONLY by
    1.Derived classes
    2.Classes in the same assembly
    3.Within the same class
    Protected Friend –> Accessible ONLY by
    1.Derived classes
    2.Classes in the same assembly
    3.Within the same class]

  39. Question 27. In Order To Get Assembly Info Whcih Namespace We Should Import?

    Answer :

    system.reflection.

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  41. Question 28. Columnmapping Belongs To Which Namespaces?

    Answer :

    System.Data.Common.

  42. Question 29. Trace And Debug Belongs To Which Namespaces?

    Answer :

    system.process.diagnostics.

  43. Question 30. What Is The Difference Between Clr & Cts?

    Answer :

    CLR is the common language runtime. which is the feature makes the .net applications to run plantform independent langauge interoperability.
    CTS Common type system is the part of the CLR which enable the Common Datatype system to All the .net languages.it also defines conventions to convert objects from one langauge to another

  44. Question 31. What Is Clr?

    Answer :

    CLR means Common Language Runtime.It is Major component of the .NET frameworkIt provides number of benefits to the developers such as Exception handling,Security,Debugging and Versioning…

  45. Question 32. What Is The Root Namespace For All Types?

    Answer :

    Imports system.

  46. Question 33. What Is The Relation Between Garbage Collector And Finalize And Destructor?

    Answer :

    here the GC calls an object’s FINALIZE method immediately before it collects an object that is no longer referred by the application.
    GC doesn’t actually run finalize method when the GC finds a FINALIZE method it queues the obj up for the finalizer to execute the objects method[GC checks for those resources which are no longer used by the process. To release the memory from these resources and in order to regain the memory heap GC initiates destructors to destroy such instances of the program. Before the destructor void an instance variable finalize routine gets executed. This routine performs whatever is to be done before the object return to void state or prior to release of any unused resources.]

  47. Dot Net Framework Interview Questions

  48. Question 34. What Are The Similarities Between Class And Structure?

    Answer :

    -> Both can have constructors, methods, properties , fields, constants , enumerations, events and event
    handlers.
    -> Structure and class can implement interface.
    -> Both of them can have constructor without parameter and with parameter.
    -> Both can have delegates and events.
    [class is a collection of methods functions and properties enumerators and fields.
    structure can be defined as a tool for handling a group of logically related data item.
    the main difference is class is a referance type.structure is a reference value type.]

  49. Question 35. Do Event Have Return Type?

    Answer :

    No. events do not have return type.

  50. Question 36. What Do You Mean By .net Framework

    Answer :

    It is a collection of classes and services.It exists as a layer between.NET applications and underlying operating system.i.e., it encapsulates the basic functionality that was earlier built into programming languages such as debugging and security services.
    [.net framework is a collection of services & classes.it exists as a layer b/w .net applications 7 the underlying operating system.
    .net framework consists of web forms,window forms & console applications that pertain to the presentation layer of the aplication.
    .net framework consists of two other components,the .net framework base classes & common language runtime(CLR).]

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  52. Question 37. Is There Any Easy Way To Convert Vb6 Programs To Vb.net?

    Answer :

    Just Open The Vb Project in Visual Studio.Net(File—> Open).

  53. Question 38. What Is The Common Language Runtime?

    Answer :

    CLR means commaon language runtime for the dot net frame work.it is the frame work layer that resides above the operating system and handels/ manages the execution of the .net applications.our .net programs don’t directly communicate with the operating system but through CLR.
    OUT .NET APPLICATION—>>CLR—>WINDOWS OS

  54. Question 39. How Is Vb.net Different From Vb6?

    Answer :

    1. VB6 was a scripting language while VB.NET is a Programming language.
    2. VB6 was supported Unstructured error handling by using On Error Gotos tatement. VB.NET supports structured exceptional by using Try…Catch…Finally to handle exceptions at runtime.
    3. VB.NET is completely supports object oriented features.but VB6 wont support.
    4. VB6 used ADO as Data access technology and record-sets to implement data access applications. Also here data transfer in the form of binary format.VB.NET uses ADO.NET and datasets to build data access applications. The ADO.NET also supports the disconnected data access. Here the data transfer in the form of xml format. So here their is faster data transfer.
    5. Multiple versions are supported with VB.NETbut withVB6its not supported.
    6. multithreading is supported with VB.NET, but not with VB6.
  55. Question 40. What Are Fixed Memory Leaks And Threads Locking Problems.

    Answer :

    Memory leak is a bug in the program which uses the memory continuously without releasing it until the system crash.Thread locking problem is nothing but a deadlock situation in case of synchronous process when two consecutive threads get lock on a common resource and waiting for each other to release that. This happens usually in case when the semaphores or monitors are not used.

  56. Asp Dot Net Mvc Interview Questions

  57. Question 41. How To Call A List Box On The Text If Some One Send Me The Code For It

    Answer :

    i understood the ? like this what to do if we need to transfer the listbox items to the text if i am correct then my answer to this is double click on the listbox so that the eventof the listbox is displayed in the code editori.e
    private sub listbox1_selectedindexchanged……
    textbox1.text=listbox1.selecteditem.

  58. Question 42. What Is The Difference B/w Readonly Variable And Constant Variable?

    Answer :

    variable used to store the data
    Read only variable:-
    Read only variable means read only but not allow to write
    constant:
    constant variable specify the constant value.

  59. Question 43. What Is The Dif B/w Panel And Groupbox.

    Answer :

    Both panel and group box acts like a container to other controls they help us a lot in some applications where we want a group of controls or objects should be disabled or enabled when a specific task is performedthe main difference is group box has a hording where u can place a text of ure own whereas a panel is just like a frame what we used in VB but has a scrollbar(hs,vs)

  60. Question 44. What Do You Mean By ‘option Strict On’ ?

    Answer :

    Option Strict
    Visual Basic language in general does not require explicit syntax to be used when performing operations that might not be optimally efficient (e.g. late binding) or that might fail at run time (e.g. narrowing conversions). This permissive semantics often prevents detection of coding errors and also affects the performance of the application.
    VB.NET enables a programmer to enforce strict semantics by setting this option to “On”. When used, this option should appear before any other code. This option can be set to “On” or “Off”. If this statement is not specified, by default, it is set to “Off”.
    Syntax: Option Strict [On / Off]
    When it is set to “On”, it disallows any narrowing conversions to occur without an explicit cast operator, late binding and does not let the programmer omit “As” clause in the declaration statement. Since setting it to “On” requires explicit conversion, it also requires that the compiler be able to determine the type of each variable. Thus it is implied that Option Strict also means Option Explicit.
    Visual Basic .NET allows implicit conversions of any data type to any other data type. However, data loss can occur if the value of one data type is converted to a data type with less precision or a smaller capacity. Setting this option to “On” ensures compile-time notification of these types of conversions so they may be avoided.

  61. Question 45. What Are Jagged Arrays ?

    Answer :

    a collection of discrete no of elements in each and every row is called as jagged arrays.
    1)these jagged arrays doesn’t contain columns,
    2)a jagged array also called as dynamic array
    3)jagged array is a collection of dynamic arrays
    4)these are faster and also save the memory.
    syntax of jagged array:
    int[][]x=new int [rows][]
    here x is array name

  62. Question 46. What Are Satellite Assemblies?

    Answer :

    Satellite assemblies are user for localizing the applications resources. A satellite assembly is a DLL that contains only resource strings.we typically have one satellite assembly DLL for each language. Because these satellite assembly DLLs are separated from the main assembly (an .exe or DLL), it is easier to drop in.

  63. Question 47. Multi-language Support As We Progress In Your Development Process. How Can We Remove Handlers At Run Time ?

    Answer :

    RemoveHandler myobj.myEvent, AddressOf MyEventHandler.

  64. Question 48. What Is .net

    Answer :

    .Net is the Development Plateform which provides advanced feature facilities for the web and window application along with the window services . The .Net is the Middle layer between the operating System and the .Net application .The feature of .Net that the .Net Component can talk with each other without worrying about the language in which they are originally.. Two main components are CLR stands for the common Language Runtime and the .Net FrameWork Base classes. The CLR performs the task of converting the IL to native code Which gives the .Net applications to be language Independent . The Other component Like .Net FramwWork Base Classes act as services to be provided to the .Net applications.

  65. Question 49. Can Any Body Tell Me The Code Procedure For Preparing Parameterized Cristel Reports.the Report Should Be Generated By Taking To Or More Parameters. Example: Report Should Be Genarated From Date To Todate?

    Answer :

    We can generate Crystal Report by using date parameter, but the date format should be “yyyy,mm,dd”.
    Ex.CrystaReport1.SelectionFormula = “{GLNOTE.L_DT}=date(” & a & “)”
    The variable ‘a’ should be assign with formated date.

  66. Question 50. Please List Some Final Year Projects That Can Be Done Using Vb.net In The Application Level.

    Answer :

    You can go for internet control of robot.
    1. use chips:- at89c51 microcontroller, l293d motor driver n max232 converter (for robot)
    2. using vb.net, develop the gui n use winsock programming for sending photos on internet.
    3. use mscomm programming in .net to move the robot in a wired connection with the comp.
    4. u can also use Enbedded C for microcontroller programming in place of assembly.use keil compiler for that n its available for free on internet.
    5. attach a cam to robot, move it n transfer the photos captured to the client over internet.

  67. Question 51. How Can We Get The Contents Information That Are Displayed In A Web

    Answer :

    browser control in vb.net.

  68. Question 52. Suppose If We Display The “c:” Or “d:” Of The Computer In A Web Browser And We Want To Get Any Folder Details But Not Ny Rigth Clicking The Folder. How To Do That Plz Help

    Answer :

    I think you want the openfiledialog, unless your saving, then savefiledialog. Add one to your project. the simplest usage allowing you to use in any fashion would be
    Dim OPEN as New Openfiledialog
    open.showdialog()
    then when you hit open on the dialog, you can pass that information such as
    Dim a as string
    a = open.filename()
    a will then = D:/Filename.smt, or whatever its real directory is Ofcourse there more recomended approaches to this method, but that should get you somewhere.

  69. Question 53. What Is The Base Class Of .net?

    Answer :

    System.Object is the base class of .NET
    It Supports all classes in the .NET Framework class hierarchy and provides low-level services to derived classes. This is the ultimate superclass of all classes in the .NET Framework; it is the root of the type hierarchy.

  70. Question 54. Whats The Difference Bt. .dll Extension And .exe Extension Files?

    Answer :

    DLL : It is an inprocess server and runs in the same memory space as client application. Problem with dll is if any error comes in dll, whole application gets crashed.
    Exe : It is an out of process server and rus as independent application in seperate memory. If error comes in exe, it does not affact the client application.

  71. Question 55. How To Send Xml File On Server Using Http Protocol?

    Answer :

    Through SOAP Protocol.

  72. Question 56. How A Rotate A Control (rotation Like Shapes Are Rotated In Ms Powerpoint ) In Vb.net?

    Answer :

    we can use adrotator control to use like powerpoint presentation.

  73. Question 57. How Can I Extract The Formated Word(bold,italic,underline,font,color Etc) From The Msword File.?

    Answer :

    using CommonDialog class
    eg:
    the code to invoke the default font dialog box by using the FontDialog control is given below:
    private sub displayfont_click(byval sender as system.object, byval e as system.eventargs) handles displayfont .click fontdialog. showDialog()
    textbox1.font=fontdialog1.font
    end sub
    the code to invoke the default font dialog box by instantiating the fontdialog class is:
    dim fdialog as new fontdialog()
    private sub displayfont_click(byval sender as system.object,byval e as system.eventargs) handles displayfont. click fdialog. showDialog()
    textbox1.font=fontdialog1.font
    end sub

  74. Question 58. Differences Between Vb.net And C#, Related To Oops Concepts?

    Answer :

    1. C# uses Must not Inherit, VB.Net uses sealed class
    2. C# uses Internal, VB.Net uses Friend
    3. VB.Net uses with events and end events
    4. C# uses abstract and VB.Net uses Must Inherit

  75. Question 59. Can U Able To Get The Xml Document In Crystal Report If Yes How Its Possible?

    Answer :

    Yes. You have to convert XML to dataset.

  76. Question 60. What Is Different Between Web.config And Machine.config And Where It Will Be ?

    Answer :

    The ASP.NET Web.config file is used to define the configuration settings for an ASP.NET application. ASP.NET and the .NET Framework use .config files to define all configuration options. The .config files, including the ASP.NET Web.config file, are XML files. The ASP.NET application configuration settings can be changed by creating a file called Web.config and saving it in the root folder of the application.This is how the minimal Web.config file should look like: