This invisible control handles the OPC server access for a number of DAGroup controls. The server access is done in background threads using the OPCDA.NET BGServer class. Server access is made at least once in the defined interval to check that the server is still responding. Async server responses are time out checked and the callbacks are synchronized with the defined Windows Form object to ensure proper access to Windows controls.
Object Model
Syntax
| Visual Basic (Declaration) | |
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<ToolboxBitmapAttribute()> <DefaultPropertyAttribute("OwnerForm")> Public Class DAServer Inherits System.ComponentModel.Component | |
| C# | |
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[ToolboxBitmapAttribute()] [DefaultPropertyAttribute("OwnerForm")] public class DAServer : System.ComponentModel.Component | |
Inheritance Hierarchy
System.Object
System.MarshalByRefObject
System.ComponentModel.Component
OPCDA.NET.Controls.DAServer