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Excel VBA Issue
How to open another excel file when another excel vba is running.
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COM Process
Which Process used by COM to allow communication between applications running in separate process?
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Visual Basic Threads
Explain How threads are handled in Visual Basic?
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Data Control
Explain the purpose of data control with example?
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Data access error
I have a score form that contains a grid that accepts scores from user ,and then display those scores to another page called playerform.the problem is that before scoreform opens it just rebuilds the score table that deals with all above task.after that only i can enter scores into the grid.when i enter score in the grid one by one ,it doesn't allow me to enter scores in the second line of the grid...
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I have this doubt "where do they exist in VB ??? where are the methods used in Interface come from ?? is it the same as class modules methods ?? If not then what methods would QueryInterface return ?? "
Please Clear my doubt anyone !">Hi ! In VB the term Interface and the Interfaces reffered say IDispatch, IUnknown are explained conceptually. In reality i.e., in coding concepts where does this Interface exists? Interfaces are used in COM, while using this COM objects (ACTX EXE, DLL,CTRL) class modules need to be declared and reffered. Though the Interface concepts says " Interface are not classes, they cannot be instantiated ..." I have this doubt "where do they exist in VB ??? where are the methods used in Interface come from ?? is it the same as class modules methods ?? If not then what methods would QueryInterface return ?? "Please Clear my doubt anyone !
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Visual Basic Interview Questions
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