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The following is a list of other parameters that can be used with the Auth component. They are used to customize the way in which Auth manages user logins, sessions, and authentication. deny( actions ) actions: The actions, separated by commas, which should be denied access without authentication hashPasswords( data[array] ) data: Takes values assigned to keys named password in an array and returns their hashed equivalents $userModel = 'User'; Used to customize the table name where users are stored. By default this is set to User. Be sure to use the model name, not the table name (for example, the bloggers table would need to be set to Blogger here). $fields = array('username'=>'username','password'=>'password'); This array can be changed to reflect customized field names for the username and password. $loginAction = array('admin'=>false,'controller'=>'users','action'=>'login'); Setting the keys in this array to other controllers or actions tells Auth where to run the Login action. Admin routing (see 10) and subsequent actions can be used by setting admin to true. $loginRedirect = array('controller'=>'users','action'=>'index'); This parameter tells Auth where to redirect the user after a successful login. $loginError = 'Login failed. Invalid username or password.';

Figure 17-1. The bare-bones GridView Here s how you would define a SqlDataSource to perform the query shown in the previous example: <asp:SqlDataSource ID="sourceProducts" runat="server" ConnectionString="<%$ ConnectionStrings:Northwind %>" SelectCommand="SELECT ProductID, ProductName, UnitPrice FROM Products" /> Next, set the GridView.DataSourceID property to link the data source to your grid: <asp:GridView ID="GridView1" runat="server" DataSourceID="sourceProducts" /> These two tags duplicate the example in Figure 17-1 but with significantly less effort. Now you don t have to write any code to execute the query and bind the DataSet. Using the SqlDataSource has positive and negative sides. Although it gives you less control, it streamlines your code quite a bit, and it allows you to remove all the database details from your code-behind class. In this chapter, we ll focus on the data source approach, because it s much simpler when creating complex data-bound pages that support features such as editing. In 23, you ll learn how to adapt these examples to use the ObjectDataSource instead of the SqlDataSource. The ObjectDataSource is a great compromise it allows you to write customized data access code in a database component without giving up the convenient design-time features of the data source controls.

To save an existing model, do the following: 1. Run Solver to solve the problem that you want to save. 2. Click Tools Solver. 3. Click Options.

By default, the GridView.AutoGenerateColumns property is True, and the GridView creates a column for each field in the bound DataTable. This automatic column generation is good for creating quick test pages, but it doesn t give you the flexibility you ll usually want. For example, what if you want to hide columns, change their order, or configure some aspect of their display,

The error message displayed in the event of a login error can be customized here. $autoRedirect = true; If you set this parameter to false, the Auth component will not automatically redirect the user after authenticating. Other checks can be run in the Login action after a successful authentication occurs, such as writing information to or checking the contents of a cookie or checking other session variables. $ajaxLogin = null; When doing Ajax-based logins, set this preference to the view the file that should be displayed in the event of an unsuccessful login.

such as the formatting or heading text In all these cases, you need to set AutoGenerateColumns to False and define the columns in the <Columns> section of the GridView control tag.

Tip It s possible to have AutoGenerateColumns set to True and define columns in the <Columns> section.

In this case, the columns you explicitly define are added before the autogenerated columns. However, for the most flexibility, you ll usually want to explicitly define every column.