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Figure 11-33. Assigning roles to the users Add the user Nancy to the Sales Person role, and Andrew to the Manager role. Capture Profile Information Now the users can log in to the website, but we have not yet captured their profile information. To do so, you need to design the Default.aspx as shown in Figure 11-34.

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In the next section, you ll see how to use this reader to step through the results of the query and access the first line of the returned addresses.

Figure 11-34. Default.aspx in design mode The web form consists of two more login-related controls at the top: UserName and LoginStatus. The former control displays the user name of the logged-in control on the form, whereas the latter displays the login status of the user (logged in or not logged in). Below the UserName and LoginStatus controls there is a label that will display the roles to which the user belongs. Finally, there is a set of text boxes for capturing all the profile properties. Clicking the Save button will save the profile information. The Page_Load event handler of Default.aspx is shown in Listing 11-26. Listing 11-26. Displaying Information About User Roles protected void Page_Load(object sender, EventArgs e) { string[] roles=Roles.GetRolesForUser(); Label2.Text = "Your are registered as " + string.Join(",", roles); if (!IsPostBack) { GetProfile(); } } The code retrieves all the roles to which the current user belongs by using the GetRolesForUser() method of the Roles object. Roles is a built-in object implicitly available to all ASP.NET applications. The GetRolesForUser() method returns all the roles as a string array. The roles names are joined together by using the Join() method of the string class and then displayed in a Label control. Next, the code checks the IsPostBack property of the web form. The IsPostBack property tells you whether you are in the Page_Load event handler because of a fresh request or because of some post-back operation. If the user is visiting the page as a fresh request, the GetProfile() helper method is called. The GetProfile() method retrieves the profile properties of the user and displays them in the respective text boxes. This method is discussed shortly.

action tags. We also used the JSP standard tag library to iterate through the items in the WebDAV resource collection and determine whether they are collections.

When you execute the previous command, ADO.NET returns a SqlDataReader. This reader is a forward-based read-only cursor that moves forward by one record every time you call its Read method. The Read method returns True if it reads a record and False otherwise. Upon a successful read, it will then load an array of values with the index of the array representing the column name so reader["ColumnName"] will contain this record s value for ColumnName. Thus, we can iterate through the returned result set using a while loop, and upon a successful read, retrieve the result set s data by simply accessing the reader as if it were an array. Listing 4-1 contains the complete code to access the addresses for postal code 98011 in the AdventureWorks database.

<%@ taglib uri="/WEB-INF/tld/c.tld" prefix="c" %> <%@ taglib uri='/WEB-INF/tld/portlet.tld' prefix='portlet'%> <%@ page import="org.apache.webdav.lib.WebdavResource" %> <%@ page import="java.util.Vector" %> <%@ page import="javax.portlet.PortletURL" %> <% WebdavResource resource = (WebdavResource) request.getAttribute("resource"); Vector children = resource.listBasic(); pageContext.setAttribute("resource", resource); pageContext.setAttribute("children", children); %> <c:forEach var="child" items="${children}" varStatus="status"> <c:set var="path" value="${resource.path}/${child[0]}"/> <c:choose> <c:when test="${child[2] == 'COLLECTION'}"> <a href="<portlet:actionURL> <portlet:param name="COMMAND" value="CHANGE_COLLECTION"/> <portlet:param name="PATH" value="<%=(String)pageContext.getAttribute("path")%>"/> </portlet:actionURL>"> <c:out value="${child[0]}"/> </a> </c:when> <c:otherwise> <a href="<portlet:actionURL> <portlet:param name="COMMAND" value="DISPLAY_CONTENT"/> <portlet:param name="PATH" value="<%=(String)pageContext.getAttribute("path")%>"/> </portlet:actionURL>"> <c:out value="${child[0]}"/> </a> <c:out value="${child[1]}"/> </c:otherwise> </c:choose> <c:out value="${child[3]}"/> <br> </c:forEach> <p/>