Displays a dialog box from which the user can select an OPC Data Access property.

Object Model

Syntax

Visual Basic
C#
C++/CLI

'Declaration
 
<CLSCompliantAttribute(True)>
<ComDefaultInterfaceAttribute(OpcLabs.EasyOpc.DataAccess.Forms.Browsing.ComTypes._DAPropertyDialog)>
<ComVisibleAttribute(True)>
<GuidAttribute("AF3A7D04-C2CB-4BCF-97DA-11AAFC09B004")>
<TypeConverterAttribute(System.ComponentModel.ExpandableObjectConverter)>
<DesignerCategoryAttribute("Component")>
Public NotInheritable Class DAPropertyDialog 
   Inherits DADialog
   Implements OpcLabs.BaseLib.Forms.ComTypes._FormCommonDialog, OpcLabs.BaseLib.Forms.ComTypes._SizableCommonDialog, OpcLabs.BaseLib.Licensing.ILicensingContextHolder, OpcLabs.EasyOpc.DataAccess.Forms.Browsing.ComTypes._DADialog, OpcLabs.EasyOpc.DataAccess.Forms.Browsing.ComTypes._DAPropertyDialog, System.ComponentModel.IComponent, System.IDisposable

'Usage
 
Dim instance As DAPropertyDialog

[CLSCompliant(true)]
[ComDefaultInterface(OpcLabs.EasyOpc.DataAccess.Forms.Browsing.ComTypes._DAPropertyDialog)]
[ComVisible(true)]
[Guid("AF3A7D04-C2CB-4BCF-97DA-11AAFC09B004")]
[TypeConverter(System.ComponentModel.ExpandableObjectConverter)]
[DesignerCategory("Component")]
public sealed class DAPropertyDialog : DADialog, OpcLabs.BaseLib.Forms.ComTypes._FormCommonDialog, OpcLabs.BaseLib.Forms.ComTypes._SizableCommonDialog, OpcLabs.BaseLib.Licensing.ILicensingContextHolder, OpcLabs.EasyOpc.DataAccess.Forms.Browsing.ComTypes._DADialog, OpcLabs.EasyOpc.DataAccess.Forms.Browsing.ComTypes._DAPropertyDialog, System.ComponentModel.IComponent, System.IDisposable

[CLSCompliant(true)]
[ComDefaultInterface(OpcLabs.EasyOpc.DataAccess.Forms.Browsing.ComTypes._DAPropertyDialog)]
[ComVisible(true)]
[Guid("AF3A7D04-C2CB-4BCF-97DA-11AAFC09B004")]
[TypeConverter(System.ComponentModel.ExpandableObjectConverter)]
[DesignerCategory("Component")]
public ref class DAPropertyDialog sealed : public DADialog, OpcLabs.BaseLib.Forms.ComTypes._FormCommonDialog, OpcLabs.BaseLib.Forms.ComTypes._SizableCommonDialog, OpcLabs.BaseLib.Licensing.ILicensingContextHolder, OpcLabs.EasyOpc.DataAccess.Forms.Browsing.ComTypes._DADialog, OpcLabs.EasyOpc.DataAccess.Forms.Browsing.ComTypes._DAPropertyDialog, System.ComponentModel.IComponent, System.IDisposable

Remarks

OpcDAPropertyDialog is a modal dialog box; therefore, when shown, it blocks the rest of the application until the user has chosen an OPC property. When a dialog box is displayed modally, no input (keyboard or mouse click) can occur except to objects on the dialog box. The program must hide or close the dialog box (usually in response to some user action) before input to the calling program can occur.

General

Icon:

The OPC-DA Property Dialog (DAPropertyDialog class) allows the user to interactively select the OPC property on a specific OPC item.

Use the ServerDescriptor property to specify the OPC Data Access server whose items are to be browsed, set the NodeDescriptor property to the OPC Item Id needed, and then call the ShowDialog method. If the result is equal to DialogResult.OK, the user has selected the OPC property, and information about it can be retrieved from the PropertyElement property.

Advanced

If you want to change the parameters of the client object the component uses to perform its OPC operations, you can use the ClientSelector Property.

Inheritance Hierarchy

System.Object
   System.MarshalByRefObject
      System.ComponentModel.Component
         System.Windows.Forms.CommonDialog
            OpcLabs.BaseLib.Forms.ConcreteCommonDialog
               OpcLabs.BaseLib.Forms.FormCommonDialog
                  OpcLabs.BaseLib.Forms.SizableCommonDialog
                     OpcLabs.EasyOpc.DataAccess.Forms.Browsing.DADialog
                        OpcLabs.EasyOpc.DataAccess.Forms.Browsing.DAPropertyDialog

Requirements

Target Platforms: .NET Framework: Windows 10 (selected versions), Windows 11 (selected versions), Windows Server 2016, Windows Server 2022; .NET: Linux, macOS, Microsoft Windows

Reference

DAPropertyDialog Members
OpcLabs.EasyOpc.DataAccess.Forms.Browsing Namespace

Documentation Home, Send Feedback. Resources: Knowledge Base, Product Downloads. Technical support: Online Forums, FAQ.

Missing some example? Ask us for it on our Online Forums! You do not have to own a commercial license in order to use Online Forums, and we reply to every post.