You use Microsoft Visual Studio 2010 and Microsoft NET Framework 4 to create an application. The application contains the following XML fragment. <ApplicationMenu> <Menultem name'File'> Menuftem…

The correct answer is D. /ApplicationMenu/Menultem[name=File']/descendant. Menultem. XmlNodeList nodes = doc.SelectNodes("/ApplicationMenu/MenuItem[@name='File']/descendant:: MenuItem"); // 01 == 02 XmlNodeList nodes = doc.SelectNodes("/ApplicationMenu/MenuItem[@name='File']//MenuItem"); // 02 == XmlNodeList nodes =…

Querying Data

Question

You use Microsoft Visual Studio 2010 and Microsoft NET Framework 4 to create an application. The application contains the following XML fragment. <ApplicationMenu> <Menultem name'File'> Menuftem name='New> <Menultem nameI?rojectw I> <Menultem name'Web Site' I><4Aenultem> <Menultem name='Open><Menultem name=Project"> <Menultem name'Web Site"> <iNenultem><Menultem narner"Save0 1> </1ienuttem> <Menultem nameEdr> <Menultem nameCut" I> <Menultem name"C0W I> <Menultem name'Paste01> <`Menultem> <Menultem name'1-4elp'> <Menultem namezlHeIp I> <Menultem name"About' I> </Menulteni> </ApplicationMenu' The application queries the XML fragment by using the Xml Document class. You need to select all the descendant elements of the Menultem element that has its name attribute as File Which XPath expression should you use?

Options

A//[@name='File'][name( )`Menultem']
B/ApplicationMenu/Menultem[FiI&)f(Menultem
C/ApphcationMenulMenultem/descendant: :Menultem[file']
D/ApplicationMenu/Menultem[name=File']/descendant. Menultem

How the community answered

(20 responses)

B
5% (1)
C
15% (3)
D
80% (16)

Explanation

XmlNodeList nodes = doc.SelectNodes("/ApplicationMenu/MenuItem[@name='File']/descendant:: MenuItem"); // 01 == 02 XmlNodeList nodes = doc.SelectNodes("/ApplicationMenu/MenuItem[@name='File']//MenuItem"); // 02 == XmlNodeList nodes = doc.SelectNodes("/ApplicationMenu/MenuItem[2]/descendant::MenuItem"); // 03 XmlNodeList nodes = doc.SelectNodes("/ApplicationMenu/MenuItem[last()]/descendant::MenuItem"); // 04 XmlNodeList nodes = doc.SelectNodes("/ApplicationMenu/MenuItem/descendant::MenuItem[/ApplicationMenu/ MenuItem/@name=@name]"); // 05 XmlNodeList nodes = doc.SelectNodes("/ApplicationMenu/MenuItem/"); // 06 XmlNodeList nodes = doc.SelectNodes("/ApplicationMenu/MenuItem/descendant::[@Description]"); //07 XmlNodeList nodes = doc.SelectNodes("/ApplicationMenu/MenuItem[MenuItem][position()=2]"); // 08 == 09 XmlNodeList nodes = doc.SelectNodes("/ApplicationMenu/MenuItem[MenuItem and position()=2]"); // 09 == 08 XmlNodeList nodes = doc.SelectNodes("/ApplicationMenu/MenuItem[SubMenu or position()=2]");

Topics

#XPath#XML navigation#descendant axis#attribute selection

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