This invisible control provides convenient access the OpcGroup object. Read, Write functios and and data change handling is supported. The parameters needed for a read/write call for multiple items can be defined in the Visual Studio Designer. In write calls the value can be easily filled into the prepared parameter structures. Data change callbacks can be configured to write the value into a control property (e.g. textBox.Text) or passed to a user handler assigned on an item base.
Object Model
Syntax
| Visual Basic (Declaration) | |
|---|---|
<ToolboxBitmapAttribute()> <DefaultPropertyAttribute("OwnerForm")> Public Class DAGroup Inherits System.ComponentModel.Component | |
| C# | |
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[ToolboxBitmapAttribute()] [DefaultPropertyAttribute("OwnerForm")] public class DAGroup : System.ComponentModel.Component | |
Inheritance Hierarchy
System.Object
System.MarshalByRefObject
System.ComponentModel.Component
OPCDA.NET.Controls.DAGroup