The Rad Combo Box can trigger validation of other controls on the form when it performs a post-back to the server.
To achieve this behavior, you need to set the Causes Validation property to True.
To select the first item, we use the following syntax to set the value of the control: After updating the Row Source property, use the list box's Requery method to re-load the data in the List Box.
There is sometimes confusion between the terms Record Source and Row Source.
It assigns a new Xml Schema Set object to variable schemas, and calls this object's Add method to add a schema to the collection.
The Add method receives as arguments a namespace URI that identifies the schema ( and the name and location of the schema file (in the current directory).
NET Framework that makes it easier and faster to program than ever before.
It includes a powerful set of libraries called the .