Logging In | in .NET

Creating QR in .NET Logging In |

Logging In |
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Click on the Login link to get the Login page, shown as the second screen in Figure 10-4. Entering the username and password for one of the user accounts you created earlier in this chapter. After you click on the Log In button, you will be brought back to the Home page, shown as the third screen in Figure 10-4. Earlier, you enabled roles in the WAT and added each user to one of the three roles: Manager, Customer, and Employee. As you saw in 9, you can use these roles to present customized content to the users who visit the page. You ll add two Panel controls to the Home page that present content depending on the user s role. Edit Home.aspx to see this in action. Add two Panel controls, as listed in Example 10-5, to the page, inside the Content control, after the closing <div> for the text that all users see.
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<asp:Panel ID="pnlEmployee" runat="server" Visible="false" > <h3>Employee Information</h3> <div class="TextNormal"> This panel should only be visible to users are a members of the <b>Employee</b> role. Turning on the visibility of this Panel occurs in the Page_Load event handler.
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10: Putting It All Together
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</div> </asp:Panel> <asp:Panel ID="pnlManager" runat="server" Visible="false" > <h3>Manager Information</h3> <div class="TextNormal"> This panel should only be visible to users are a members of the <b>Manager</b> role. Turning on the visibility of this Panel occurs in the Page_Load event handler. </div> </asp:Panel>
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Switch over to the code-behind for the Home page, Home.aspx.vb. Add the highlighted lines of code from Example 10-6 to the Page_Load event handler.
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Protected Sub Page_Load(ByVal sender As Object, _ ByVal e As System.EventArgs) Handles Me.Load Me.Master.PageSubTitle.Text = "Home" ' control the visibility of sections restricted to specific roles pnlManager.Visible = User.IsInRole("Manager") pnlEmployee.Visible = User.IsInRole("Employee") End Sub
The code here is very simple; it sets the visibility of each panel depending on the value of the IsInRole method for the appropriate role. Before logging in, the Home page will still look like the first screen in Figure 10-4. If you log in as rhampster, who is a member of the Managers role (it s only fitting that the boss is a rodent), you will see Figure 10-5. Now, log out and log in as user dhurwitz, and you ll see just the content of pnlEmployee. Log in again as user jliberty, and you won t see either panel because customers don t need to see employee-specific information. Of course, if you make a user a member of both the Manager and Employee roles, she would see both panels.
Navigation
The front page of your site is looking pretty good. Users can identify themselves, and see the custom content. The master page is working as planned, and each page identifies itself appropriately. The next thing to do is add some navigation tools so that users can find their way around, which means you have to create a site map. Close the browser if it is open, and select Website Add New Item, and choose Site Map. Accept the default name of Web.sitemap. As you learned in 6, the site map is an XML file, and you have to create it manually the IDE won t do it for you. Open the web.sitemap file, and replace the default boilerplate with the highlighted code in Example 10-7.
< xml version="1.0" encoding="utf-8" > <siteMap xmlns="http://schemas.microsoft.com/AspNet/SiteMap-File-1.0" > <siteMapNode title="Root" > <siteMapNode url="~/Home.aspx" title="Home" description="Home page" /> <siteMapNode url="~/Products.aspx" title="Products" description="Products offered by AdventureWorks" /> <siteMapNode url="~/Cart.aspx" title="Shopping Cart" description="Items selected for purchase" /> <siteMapNode url="~/Purchase.aspx" title="Purchase" description="Purchase your selected items" /> </siteMapNode> </siteMap>
Now that you have the site map file, you ll add the navigation controls to the master page. Add the following code to MasterPage.master, in the same table cell and after the LoginView control:
<hr /> <asp:SiteMapDataSource ID="SiteMapDataSource1" runat="server" ShowStartingNode="false" /> <asp:Menu ID="Menu1" runat="server" DataSourceID="SiteMapDataSource1" CssClass="MenuText" />
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