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Interview questions : VB

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3 main differences between flexgrid control and dbgrid control ActiveX and Types of ActiveX Components in VB Advantage of ActiveX Dll over Active Exe Advantages of disconnected recordsets Benefit of wrapping database calls into MTS transactions Benefits of using MTS Can database schema be changed with DAO, RDO or ADO? Can you create a tabletype of recordset in Jet - connected ODBC database engine? Constructors and distructors Controls which do not have events Default property of datacontrol Define the scope of Public, Private, Friend procedures? Describe Database Connection pooling relative to MTS Describe: In of Process vs. Out of Process component. Which is faster? Difference between a function and a subroutine, Dynaset and Snapshot,early and late binding, image and picture controls,Linked Object and Embedded Object,listbox and combo box,Listindex and Tab index,modal and moduless window, Object and Class,Query unload and unload in form, Declaration and Instantiation an object? Draw and explain Sequence Modal of DAO How can objects on different threads communicate with one another? How can you force new objects to be created on new threads? How does a DCOM component know where to instantiate itself? How to register a component? How to set a shortcut key for label? Kind of components can be used as DCOM servers Name of the control used to call a windows application Name the four different cursor and locking types in ADO and describe them briefly Need of zorder method, no of controls in form, Property used to add a menus at runtime, Property used to count number of items in a combobox,resize a label control according to your caption. Return value of callback function, The need of tabindex property Thread pool and management of threads within a thread pool To set the command button for ESC, Which property needs to be changed? Type Library and what is it's purpose? Types of system controls, container objects, combo box Under the ADO Command Object, what collection is responsible for input to stored procedures? VB and Object Oriented Programming What are the ADO objects? Explain them. What are the different compatibility types when we create a COM component? What do ByVal and ByRef mean and which is the default? What does Option Explicit refer to? What does the Implements statement do? What is OLE and DDE? Explain. What is the difference between Msgbox Statement and MsgboxQ function?

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