VB.NET

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VB.NET Interview questions and answer part 4.

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By Nishant Kumar 

Part 1 | Part 2 | Part 3 | Part 4 | part 5

Briefly describe DataView.  |   Define an XmlDataDocument.  |   Define SQL injection attack?  |   ReadXML, WriteXML, GetXML  |   Briefly describe user-defined controls.  |   Describe the role of the LicenseProvider in control licensing.  |   What are the requirements to access of the Certified for Windows logo program?  |   Steps to create localized form.  |   Explain the difference between Globalization and Localization.  |   What is strong name?  |   How do you retrieve resources at run time.    

Question - Briefly describe DataView.
Answer - The data represented in a DataView object can be filtered and sorted. It has Sort property and RowFilter property.

Question - Define an XmlDataDocument.
Answer - An XmlDataDocument is an in-memory representation of data in a hierarchical XML format and is synchronized with a DataSet. You can use the XmlDataDocument to perform XML manipulations on a DataSet.

Question - Define SQL injection attack?
Answer - It occurs when SQL string is passed as user input to the application. SQL injection attack is prevented by validating the format of all strings passed as user input.

Question - ReadXML, WriteXML, GetXML
Answer - ReadXML: The dataset method that reads data from an XML file into a dataset. WriteXML: GetXML: Retrieve data from a dataset in XML file.

Question - Briefly describe user-defined controls.
Answer - Inherited controls, user controls, and custom controls

Question - Describe the role of the LicenseProvider in control licensing.
Answer - The LicenseProvider controls license validation and grants run-time licenses to validly licensed components.

Question - What are the requirements to access of the Certified for Windows logo program?

Answer -

Question - Steps to create localized form.
Answer - Set the Localizable property to true.
Set the Language property to the language/region.
Make any localization-related changes in the UI.
The changed property values will automatically be stored in resource files.
To load appropriate resource file, CurrentUICulture is set to the appropriate CultureInfo.

Question - Explain the difference between Globalization and Localization.
Answer - Globalization refers to the application of culture-specific format to existing data. Localization refers to providing new culture-specific resources and retrieving the appropriate resources based on the culture setting.

Question - What is strong name?
Answer - Create Key file with the strong name utility (sn.exe).
Specify the key file in the AssemblyInfo file.

Question - How do you retrieve resources at run time.
Answer -  Create an instance of the ResourceManager class using the assembly that contains the desired resource. Use the GetString method to retrieve string resources or the GetObject method to retrieve object resources. 

Part 1 | Part 2 | Part 3 | Part 4 | part 5

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