create a qr code using c# and asp.net Part IV in Visual C#

Creator QR Code in Visual C# Part IV

Part IV
Creating QR In Visual C#.NET
Using Barcode encoder for VS .NET Control to generate, create Denso QR Bar Code image in .NET applications.
www.OnBarcode.com
Scanning QR In C#.NET
Using Barcode decoder for VS .NET Control to read, scan read, scan image in Visual Studio .NET applications.
www.OnBarcode.com
Infrastructure of the Application
Barcode Creator In Visual C#
Using Barcode encoder for .NET framework Control to generate, create barcode image in .NET framework applications.
www.OnBarcode.com
Scan Barcode In C#
Using Barcode recognizer for .NET Control to read, scan read, scan image in VS .NET applications.
www.OnBarcode.com
The Role Management API
Make QR Code JIS X 0510 In .NET Framework
Using Barcode creation for ASP.NET Control to generate, create Quick Response Code image in ASP.NET applications.
www.OnBarcode.com
QR Code Printer In Visual Studio .NET
Using Barcode creator for .NET Control to generate, create QR image in .NET applications.
www.OnBarcode.com
The role management API lets you define roles as well as specify programmatically which users are in which roles. The easiest way to configure role management, define roles, add users to roles, and create access rules is to use WSAT. (See Figure 19-4.) You enable role management by adding the following script to your application s web.config file:
Encode QR Code In VB.NET
Using Barcode generation for .NET framework Control to generate, create Denso QR Bar Code image in VS .NET applications.
www.OnBarcode.com
2D Barcode Printer In Visual C#
Using Barcode creation for .NET Control to generate, create 2D Barcode image in Visual Studio .NET applications.
www.OnBarcode.com
<roleManager enabled="true" />
Linear Creation In Visual C#.NET
Using Barcode creation for .NET framework Control to generate, create 1D image in .NET framework applications.
www.OnBarcode.com
USS Code 39 Maker In C#.NET
Using Barcode printer for Visual Studio .NET Control to generate, create ANSI/AIM Code 39 image in .NET framework applications.
www.OnBarcode.com
You can use roles to establish access rules for pages and folders. The following <authorization> block states that only Admin members can access all the pages controlled by the web.config file:
Generating Barcode In C#
Using Barcode printer for .NET Control to generate, create barcode image in VS .NET applications.
www.OnBarcode.com
ITF-14 Generation In C#
Using Barcode generator for .NET framework Control to generate, create EAN / UCC - 14 image in VS .NET applications.
www.OnBarcode.com
<configuration> <system.web> <authorization> <allow roles="Admin" /> <deny users="*" /> </authorization> </system.web> </configuration>
Print Barcode In None
Using Barcode generator for Font Control to generate, create barcode image in Font applications.
www.OnBarcode.com
GTIN - 12 Generation In Objective-C
Using Barcode creator for iPad Control to generate, create UPCA image in iPad applications.
www.OnBarcode.com
The order in which you place <allow> and <deny>tags is important. Permissions and denies are processed in the order in which they appear in the configuration file. WSAT provides a visual interface for creating associations between users and roles. If necessary, you can instead perform this task programmatically by calling various role manager methods. The following code snippet demonstrates how to create the Admin and Guest roles and populate them with user names:
Paint GS1 DataBar Limited In Java
Using Barcode generator for Java Control to generate, create GS1 DataBar image in Java applications.
www.OnBarcode.com
Creating UCC - 12 In Objective-C
Using Barcode drawer for iPad Control to generate, create UCC-128 image in iPad applications.
www.OnBarcode.com
Roles.CreateRole("Admin"); Roles.AddUsersToRole("DinoE", "Admin"); Roles.CreateRole("Guest"); var guests = new String[2]; guests[0] = "JoeUsers"; guests[1] = "Godzilla"; Roles.AddUsersToRole(guests, "Guest")
Draw USS-128 In None
Using Barcode encoder for Font Control to generate, create USS-128 image in Font applications.
www.OnBarcode.com
USS Code 128 Generation In Visual Studio .NET
Using Barcode drawer for Reporting Service Control to generate, create Code 128C image in Reporting Service applications.
www.OnBarcode.com
At run time, information about the logged-in user is available through the HTTP context User object. The following code demonstrates how to determine whether the current user is in a certain role and subsequently enable specific functions:
Generate PDF417 In None
Using Barcode drawer for Online Control to generate, create PDF 417 image in Online applications.
www.OnBarcode.com
Code 128A Creation In VS .NET
Using Barcode encoder for ASP.NET Control to generate, create Code128 image in ASP.NET applications.
www.OnBarcode.com
if (User.IsInRole("Admin")) { // Enable functions specific to the role ... }
19 ASP.NET Security
When role management is enabled, ASP.NET looks up the roles for the current user and binds that information to the User object.
The Roles Class
When role management is enabled, ASP.NET creates an instance of the Roles class and adds it to the current request context the HttpContext object. The Roles class features the methods listed in Table 19-12.
TABLE 19-12
Methods of the Roles Class
Description
Adds an array of users to a role. Adds an array of users to multiple roles. Adds a user to a role. Adds a user to multiple roles. Creates a new role. Deletes the cookie that the role manager used to cache all the role data. Deletes an existing role. Retrieves all the user names in the specified role that match the provider user name string. The user names found are returned as a string array. Returns all the available roles. Returns a string array listing the roles that a particular member belongs to. Returns a string array listing the users who belong to a particular role. Determines whether the specified user is in a particular role. Removes a user from a role. Removes a user from multiple roles. Removes multiple users from a role. Removes multiple users from multiple roles. Returns true if the specified role exists.
Method
AddUsersToRole AddUsersToRoles AddUserToRole AddUserToRoles CreateRole DeleteCookie DeleteRole FindUsersInRole
GetAllRoles GetRolesForUser GetUsersInRole IsUserInRole RemoveUserFromRole RemoveUserFromRoles RemoveUsersFromRole RemoveUsersFromRoles RoleExists
Table 19-13 lists the properties available in the Roles class. All the properties are static and read-only. They owe their value to the settings in the <roleManager> configuration section.
Part IV
Infrastructure of the Application
TABLE 19-13
Properties of the Roles Class
Description
Returns the provider s nickname. Returns true if cookie storage for role data is enabled. Specifies the name of the cookie used by the role manager to store the roles. It defaults to .ASPXROLES. Specifies the cookie path. Specifies an option for securing the roles cookie. Possible values are All, Clear, Hashed, and Encrypted. Indicates whether the cookie requires SSL. Indicates whether the cookie has a fixed expiration time or a sliding expiration. Returns the time, in minutes, after which the cookie will expire. Creates a role cookie that survives the current session. Indicates the domain of the role cookie. Indicates whether role management is enabled. Indicates the maximum number of roles that can be stored in a cookie for a user. Returns the current role provider. Returns a list of all supported role providers.
Copyright © OnBarcode.com . All rights reserved.