You can request permission to do something and you can demand certain permissions from other apps. You can also refuse permissions so that your app is not inadvertently used to destroy some data.
using System.Security.Permissions; [assembly:FileDialogPermissionAttribute(SecurityAction.RequestMinimum, Unrestricted=true)]
A DiffGram is a XML format that is used to identify current and original versions of data elements. The DataSet uses the DiffGram format to load and persist its contents, and to serialize its contents for transport across a network connection. When a DataSet is written as a DiffGram, it populates the DiffGram with all the necessary information to accurately recreate the contents, though not the schema, of the DataSet, including column values from both the Original and Current row versions, row error information, and row order.
Class instances often encapsulate control over resources that are not managed by the runtime, such as window handles (HWND), database connections, and so on. Therefore, you should provide both an explicit and an implicit way to free those resources. Provide implicit control by implementing the protected Finalize Method on an object (destructor syntax in C# and the Managed Extensions for C++). The garbage collector calls this method at some point after there are no longer any valid references to the object. In some cases, you might want to provide programmers using an object with the ability to explicitly release these … Click here to continue reading.
A resource file may contain a collection of icons, menus, dialog boxes, strings tables, user-defined binary data and other types of items. Once compiled into a suitable format, a resource file can be embedded directly into an executable file, producing a single EXE containing both code and resources. At run-time, the application can use the resource items in the embedded file. The process of creating a resource is straightforward, and is similar to compiling a PowerBASIC program. While resource files are still supported, usage of the #RESOURCE metastatement simplifies adding resources to your program. With the #RESOURCE metastatement you can … Click here to continue reading.