asian dating ohio woman - Updating database table datagridview

When the Control Permissions page closes, we reset the original tool tips (which we stashed away).There are a number of juicy technical details, and the best way to see them is to walk through them step by step.That’s it, otherwise all application forms and their controls (including user controls and custom controls) remain unchanged.

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The second, and perhaps more important, page involved in managing the control-based security will display all the controls for a given page, and will display all the roles known to the application.

Since the default is full access, the administrator need only indicate the restrictions to apply for any given control for any given role.

It does not implement login and so it does not implement any of the checks to see if the logged in user should be restricted in access to the controls on any given page. Simply click on the CODE DOWNLOAD link in the box to the right of the article title. NET, though it presents a bit more of a challenge with Windows Forms applications that will be used by a very large number of users. NET authentication support, accessing it through a web service.) NOTE: My client had their own authentication system (as part of their larger in-house system) and to keep this article simple I’ll follow their lead and simply create a Users table and a Roles table and finesse the authentication.

To decide if a user has “access” to a control (which will be defined as meaning the right to see a control or to invoke the control) we’ll create two additional objects: In a “real” application, I’d add a middle tier of business objects to represent the user, role, control and the relationships, but again, to keep this paper stripped down to the essence, the sample application will have the presentation layer talk directly to the persistence layer (a practice I generally recommend against!

The handler for the Save button loops through each indicated control and each indicated role and calls a stored procedure to make a record in Control To Roles (first ensuring there is a record for that control in Controls).

All of this is done under transaction support, as explained in detail below).

Thus, we need only create a Windows form for adding users, adding roles and adding users to roles, and saving all of that to the database.

This is easily accomplished by creating the form shown in Figure 4: You will want to bind the list boxes to data sources tied to your data tables.

Jesse Liberty demonstrates a role-based security architecture for Windows Forms applications that will allow you to restrict access to any given control, on any form, so that it is either invisible or disabled, based on who is using the form.

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