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<TD BORDERCOLOR=#c0c0c0 ><FONT style=FONTSIZE:10pt FACE="Verdana" COLOR=#000080><%=Server.HTMLEncode (rs.Fields("FacilityName").Value)%><BR></FONT></TD>

XElement name = new XElement("name", "Steve Eichert");

Notice that there is a pair of code tags embedded in the middle. The code calls the server s HTMLEncode function to make sure that the characters returned use the correct coding scheme. (See the sidebar on page 992, What Is Unicode ) The code passes the value of the FacilityName field in the current record of the recordset to the encoding function. Later in the code, you can find a MoveNext command to the recordset followed by a Loop. The VBScript code loops through all the records and causes the page to output one row per record until it is finished.

Set APIs SetFileAttributesTransacted In addition, some APIs automatically participate in transacted operations when the file handle they are passed is part of a transaction, like one created by the CreateFileTransacted API. Table 11-8 lists Windows APIs that have modified behavior when dealing with a transacted file handle.

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All the VBScript code in this chapter is identical to what you might code in a Visual Basic module. However, there are some key differences between VBScript and Visual Basic. You ll learn more about coding in VBScript in the next chapter, Building Data Access Pages.

To make an Active Server Page really useful and efficient, the page needs to be able to accept parameters either in the URL or from a calling page and filter the recordset it returns. Code in an Active Server Page can fetch parameters supplied after the question mark as part of the URL string (such as passing an ID value of 3 by specifying http://localhost/ mypage.asp ID=3), from cookies written by the sending page, or from values sent to the page from another page that uses the POST method from an HTML form. You re probably most familiar with parameters in a URL string you see them all the time in the Address box when you visit Active Server Pages on the World Wide Web. You ll learn more about cookies in the next chapter on data access pages.

Creating Static and Dynamic Web Pages When an Active Server Page receives parameters, the code in the page can access the parameters as members of the Request object. For example, to find out if a value has been supplied for an ID parameter, the code can test Request("ID"). When you know how to test for parameter values, it s easy to modify the code that builds the recordset for the Active Server Page to open a filtered view of the data. In the \Webs\ActiveServerPages folder, you can find the Active Server Page, Reservations.asp, that accepts three different parameters to filter the list of reservations saved in the database. Below is the VBScript code that examines the parameters and builds a filtered query to fetch the data for the page:

As you would expect, the string could have been stored in a variable or returned from a method call.

Dim lngID, strWhere, strErr, intCount Dim datStart, datEnd intCount = 0 strWhere = "" On Error Resume Next Comment out recordset re-use - filtering every time page opens If IsObject(Session("qryXmplFacilityReservationsForASP_rs")) Then Set rs = Session("qryXmplFacilityReservationsForASP_rs") Else lngID = Request("ID") If Not IsNull(lngID) And Len(lngID) > 0 Then strWhere = " WHERE tblFacilities.FacilityID = " & lngID End If datStart = Request("StartDate") datEnd = Request("EndDate") Check for date search and add/build predicate If IsNull(datStart) Or Len(datStart) = 0 Then No start date, check for end If Not IsNull(datEnd) And Len(datEnd) > 0 Then Got an end date only - create predicate If Len(strWhere) > 0 Then strWhere = strWhere & " AND tblReservations.CheckInDate <= #" & _ datEnd & "# AND tblReservations.CheckOutDate > #" & datEnd & "#" Else strWhere = " WHERE tblReservations.CheckInDate <= #" & datEnd & _ "# AND tblReservations.CheckOutDate > #" & datEnd & "#" End If End If Else Got a start, now check for end If IsNull(datEnd) Or Len(datEnd) = 0 Then Got a start date only - create predicate If Len(strWhere) > 0 Then strWhere = strWhere & " AND tblReservations.CheckInDate <= #" & _ datStart & "# AND tblReservations.CheckOutDate > #" & datStart & "#" Else strWhere = " WHERE tblReservations.CheckInDate <= #" & datStart & _ "# AND tblReservations.CheckOutDate > #" & datStart & "#" End If

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XElement name = new XElement("name", usersName); XElement name = new XElement("name", GetUsersName());

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