You create an add-in for Microsoft Office Excel by using Visual Studio Tools for the Microsoft Office System (VSTO). You create the following method in the add-in.
Private Sub DisplayTotal(ByVal rng As Excel.Range) 'Display total End Sub
You write the following code segment in the startup event of the add-in.
Dim ws As Excel.Worksheet = CType _ (Globals.ThisAddIn.Application.ActiveSheet, Excel.Worksheet)
AddHandler ws.SelectionChange, AddressOf Me.ws_SelectionChange
The add-in must display the sum of the values in a selected range. If multiple ranges are selected, the add-in must display only the sum of the values in the first selected range.
You need to meet the outlined requirements.
Which code segment should you use?

• A. Private Overloads Sub ws_SelectionChange _ (ByVal Target As Excel.Range) DisplayTotal(Target.CurrentRegion) End Sub
• B. Private Overloads Sub ws_SelectionChange _ (ByVal Target As Excel.Range) DisplayTotal(Target.Areas(0)) End Sub
• C. Private Overloads Sub ws_SelectionChange _ (ByVal Target As Excel.Range) DisplayTotal(Target.Areas(1)) End Sub
• D. Private Overloads Sub ws_SelectionChange _ (ByVal Target As Excel.Range) DisplayTotal(Target.Previous) End Sub

You create an add-in for Microsoft Office Word by using Visual Studio Tools for the Microsoft Office System (VSTO). You will use Microsoft Visual Studio 2005 Bootstrapper to install the add-in.
The Product.xml file for the Bootstrapper contains the following XML fragment. (Line numbers are included for reference only.)
01 < InstallChecks >
02 < AssemblyCheck Property="VSTORInstalled"
03 Name="Microsoft.Office.Tools.Common"
04 PublicKeyToken="b03f5f7f11d50a3a" Version="8.0.0.0"/ >
05 < /InstallChecks >
0 6 < Commands Reboot="Defer" >
07 < Command PackageFile="vstor.exe" >
08 < InstallConditions >
09 ...
10 < /InstallConditions > 11 < /Command > 12 < /Commands >
You need to ensure that Microsoft VSTO Runtime is installed on the target computers.
Which XML fragment should you insert at line 09?

• A. < BypassIf Property="VSTORInstalled" Compare="ValueExists" Value="false"/ >
• B. < BypassIf Property="VSTORInstalled" Compare="ValueExists" Value="true"/ >
• C. < FailIf Property="VSTORInstalled" Compare="ValueExists" Value="false"/ >
• D. < FailIf Property="VSTORInstalled" Compare="ValueExists" Value="true"/ >

You are creating an add-in for Microsoft Office Excel by using Visual Studio Tools for the Microsoft Office System (VSTO). The add-in contains an instance of a data island named SalesDataSet. You create an instance of the CachedDataHostItemCollection object named HC in the add-in. You need to load the content from a CachedDataHostItem object in HC into SalesDataSet. Which code segment should you use?

• A. string di = HC[0]. CachedData [0]. DataType.GetType ().ToString(); using ( System.IO.StringReader rdr = new System.IO.StringReader ( di )) { northwindDataSet.ReadXml ( rdr ); northwindDataSet.Reset (); }
• B. string di = HC[0].CachedData[0].GetType().ToString(); using (System.IO.StringReader rdr = new System.IO.StringReader(di)) { northwindDataSet.ReadXml(rdr); northwindDataSet.AcceptChanges(); }
• C. string di = HC[0].CachedData[0].DataType.ToString(); using (System.IO.StringReader rdr = new System.IO.StringReader(di)) { northwindDataSet.ReadXml(rdr); northwindDataSet.Reset(); }
• D. string di = HC[0].CachedData[0].Xml; using (System.IO.StringReader rdr = new System.IO.StringReader(di)) { northwindDataSet.ReadXml(rdr); northwindDataSet.AcceptChanges(); }

You are creating an add-in project for Microsoft Office by using Visual Studio Tools for the Microsoft Office System (VSTO). You create a data source named ContactRef from a class in an assembly. The author digitally signs a new version of the assembly. You need to ensure that the add-in can load a new version of the assembly. What should you do?

• A. Add the public key token to the TypeInfo element in the ContactRef.datasource file.
• B. Add the public key token to the GenericObjectDataSource element in the ContactRef.datasource file.
• C. Add a PublicKeyToken attribute to the ContactRef.datasource file.
• D. Add a PublicKeyToken element to the ContactRef.datasource file.

You are creating a document-level solution for Microsoft Office Word 2003 by using Visual Studio Tools for the Microsoft Office System (VSTO).
The solution will insert an XML data island in a Word document. The data island contains the following XML fragment.
< customer id="01AF" >
< region district="Northwest" > < /region >
< /customer >
You bind the data island to an XMLNode instance named xln.
You need to update the region element with the following data.
< customer id="01AF" >
< region district="Southwest" > California < /region >
< /customer >
Which code segment should you use?

• A. If xln.ParentNode.NodeValue = "customer" _ AndAlso xln.NodeValue (0). CompareTo ("Northwest") = 0 Then xln.NodeText = " California " xln.ChildNodes (1).Text = "Southwest" End If
• B. If xln.ParentNode.NodeValue = "customer" _ AndAlso xln.NodeText = "Northwest" Then xln.NodeText = "Southwest" xln.ChildNodes (1).Text = " California " End If
• C. If xln.ChildNodes (0).Text = "customer" _ AndAlso xln.NodeText = "Northwest" Then xln.NodeText = "Southwest" xln.ChildNodes (1).Text = "California" End If
• D. If xln.ChildNodes (0).Text = "customer" _ AndAlso xln.NodeValue (0). CompareTo ("Northwest") = 0 Then xln.NodeText = " California " xln.ChildNodes (1).Text = "Southwest" End If