Specifies the default tag generated for a custom control when it is dragged from a toolbox in a tool such as Microsoft Visual Studio.
See Also: ToolboxDataAttribute Members
By default, the visual designer of a tool such as Visual Studio, creates an empty tag. This is a tag representing a control in its default state, when the control is dropped from the toolbox of a visual designer onto the design surface. To specify initial default values, a control can make use of this attribute. You can use this attribute to customize the initial HTML content that is placed in the designer when the control is dragged from the toolbox onto the form.