70-320 XML Web Services and Server Components with C#.NET Brain Dump

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70-320 XML Web Services and Server Components with C#.NET

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Demo Question 5.

Your application creates an XML Schema Definition (XSD. file from a DataSet object in your application. You need to retain the structure of the dataset only. Which of the following lines of code should you use? (Select the best choice.)

A. dsMain.StreamWriter.Write("c:\CK\StudentInfo.xsd", XmlWriteMode.XmlSchema)
B. dsMain.WriteXml("c:\CK\StudentInfo.xsd", XmlWriteMode.XmlSchema)
C. dsMain.WriteXmlSchema("c:\CK\StudentInfo.xsd")
D. dsMain.SaveXmlSchema("c:\CK\StudentInfo.xsd")

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Answer: C You should use the code dsMain.WriteXmlSchema("c:\CK\StudentInfo.xsd") to create an XML Schema Definition (XSD. file from a DataSet object named dsMain. The WriteXmlSchema method accepts a String name of a file, a System.IO.Stream object, a TextWriter object or an XmlWriter object to determine the file that it will create. ADO.NET makes the transfer of XML to and from datasets very simple. To write the contents of a dataset as XML, you can use the WriteXml method of the DataSet class.

Explanation: