VB.NET INTERVIEW QUESTION & ANSWERS
| 86. |
What is the difference between Custom Control and User Control? |
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Custom Controls are compiled code (Dlls), easier to use, difficult to create, and can be placed in toolbox. Drag and Drop controls. Attributes can be set visually at design time. Can be used by Multiple Applications (If Shared Dlls), Even if Private can copy to bin directory of web application add reference and use. Normally designed to provide common functionality independent of consuming Application.
User Controls are similar to those of ASP include files, easy to create, can not be placed in the toolbox and dragged - dropped from it. A User Control is shared among the single application files. |
| 87. |
What is the difference between an EXE and a DLL? |
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Dll is an In-Process Component whereas EXE is an OUt-Process Component.Exe is for single use whereas you can use Dll for multiple use.
Exe can be started as standalone where dll cannot be. |
| 88. |
What is ViewState? |
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ViewState is a .Net mechanism to store the posted data among post backs. ViewState allows the state of objects to be stored in a hidden field on the page, saved on client side and transported back to server whenever required. |
| 89. |
How can we suppress a finalize method? |
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GC. SuppressFinalize() |
| 90. |
What is difference between metaData and manifest? |
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Metadata and Manifest forms an integral part of an assembly( dll / exe ) in .net framework . Out of which Metadata is a mandatory component , which as the name suggests gives the details about various components of IL code viz : Methods , properties , fields , class etc. |
