C# WinForms User/Permission management. How to implement security component in Windows Forms. Security: Unify Windows Forms and ASP.NET Providers for Credentials Management. Security Unify Windows Forms and ASP.NET Providers for Credentials Management Juval Lowy This article is based on prerelease versions of the .NET Framework 2.0 and Visual Studio 2005. All information contained herein is subject to change. Code download available at:Security.exe(220 KB) Windows® Forms intranet applications often resort to storing user credentials in a database even when deployed in a homogenous Windows environment. This stems from the limitations of using Windows accounts. This article presents a set of interacting helper classes that enable a Windows Forms application to use the ASP.NET credentials management infrastructure, with the same ease as if it were an ASP.NET application.
ASP.NET Security Infrastructure Before showing you how to take advantage of the ASP.NET user credentials management, you need to learn a bit about it. Figure 1 ASP.NET Application Security Configuration At run time, ASP.NET will authenticate the callers using the credentials in the database. Creating a Dockable Panel-Controlmanager Using C#, Part 1. In the Menustrip, create a menu named 'files' which doesn't need to contain anything at the moment. In toolStrip1, you create Buttons named 'tsbAddForm','tsbAddTechList', 'tsbAddBill', and 'tsbAddEditor'. Choose DisplayStyle Text for all of them and set the Text to 'Add Form', 'Add TechList', 'Add Bill', and 'Add Editor' respectively.
In toolStrip2, you can add some pictures, no matter what. The icons I used are in the attached sample; you can use them if you want. This Toolstrip is only for demonstration and testing purposes, so it's not very important what you are using there. Now, after compiling the project you should be able to draw your DockingManager from your Toolbox to the DockingControltestApplications MDI Form. [pic6.jpg] Figure 6: The DockingControltestApp as it looks now (Design Mode) If you start the program now, nothing happens.
Starting your Project again, you get this: [pic7.jpg] Figure 7: Look at the Created TabStrips. If (Parent ! How It Is Designed [ArgumentException.JPG] .Net Licensing | WPF Docking - DevZest. Fixing a slow scrolling DataGridView. Whenever your C#/.NET DataGridView reaches a certain size, it tends to get really slow to scroll. Depending on the speed of your computer this may be more or less noticeable. In an application i did for a client this became a real problem due to a combination of lots of DataGridView cells and fairly slow computers. Luckily the solution turned out to be simple… Turn on double buffering Turning on double buffering seems to solve the problem. My DataGridView doesn’t have a DoubleBuffered property !?!?
For some reason Microsoft has decided to hide the DoubleBuffered property from DataGridView. Public static class ExtensionMethods { public static void DoubleBuffered(this DataGridView dgv, bool setting) { Type dgvType = dgv.GetType(); PropertyInfo pi = dgvType.GetProperty("DoubleBuffered", BindingFlags.Instance | BindingFlags.NonPublic); pi.SetValue(dgv, setting, null); } } Just drop the above class into your project somewhere, or add the function to your existing extension methods.