_UADataDialog Interface

Exposes OpcLabs.EasyOpc.UA.Forms.Browsing.UADataDialog to COM clients.

Object Model

Syntax

Visual Basic
C#
C++/CLI

'Declaration
 
<CLSCompliantAttribute(False)>
<ComVisibleAttribute(True)>
<GuidAttribute("68798837-AA6C-4412-B9A2-F069BF8BE160")>
<InterfaceTypeAttribute(ComInterfaceType.InterfaceIsDual)>
Public Interface _UADataDialog

'Usage
 
Dim instance As _UADataDialog

[CLSCompliant(false)]
[ComVisible(true)]
[Guid("68798837-AA6C-4412-B9A2-F069BF8BE160")]
[InterfaceType(ComInterfaceType.InterfaceIsDual)]
public interface _UADataDialog

[CLSCompliant(false)]
[ComVisible(true)]
[Guid("68798837-AA6C-4412-B9A2-F069BF8BE160")]
[InterfaceType(ComInterfaceType.InterfaceIsDual)]
public interface class _UADataDialog

Example

COM

C++
Object Pascal
Visual Basic (VB 6.0)
VBScript

// This example shows how to let the user browse for an OPC-UA data node (a Data Variable or a Property).

#include "stdafx.h"    // Includes "QuickOpc.h", and other commonly used files
#include "ShowDialog.h"

namespace _UADataDialog
{
    void ShowDialog::Main()
    {
        // Initialize the COM library
        CoInitializeEx(NULL, COINIT_MULTITHREADED);
        {
            // 
            _UADataDialogPtr DataDialogPtr(__uuidof(UADataDialog));

            //
            DataDialogPtr->EndpointDescriptor->UrlString = 
                //L"http://opcua.demo-this.com:51211/UA/SampleServer";
                L"opc.tcp://opcua.demo-this.com:51210/UA/SampleServer";
            DataDialogPtr->UserPickEndpoint = true;

            // 
            DialogResult dialogResult = DataDialogPtr->ShowDialog(NULL);
            // Display results

            if (dialogResult == 1/*OK*/)
            {
                _tprintf(_T("%d\n"), dialogResult);
                _tprintf(_T("EndpointDescriptor: %s\n"), (LPCTSTR)CW2CT(DataDialogPtr->EndpointDescriptor->ToString));
                _tprintf(_T("NodeElement: %s\n"), (LPCTSTR)CW2CT(DataDialogPtr->NodeElement->ToString));
            }
        }
         // Release all interface pointers BEFORE calling CoUninitialize()
        CoUninitialize();
    }
}

// This example shows how to let the user browse for an OPC-UA data node
// (a Data Variable or a Property).

class procedure ShowDialog.Main;
var
  DataDialog: OpcLabs_EasyOpcForms_TLB._UADataDialog;
  DialogResult: System_Windows_Forms_TLB.DialogResult;
begin
  // Instantiate the dialog object
  DataDialog := CoUADataDialog.Create;

  DataDialog.EndpointDescriptor.UrlString := 
    //'http://opcua.demo-this.com:51211/UA/SampleServer';
    //'https://opcua.demo-this.com:51212/UA/SampleServer/';
    'opc.tcp://opcua.demo-this.com:51210/UA/SampleServer';
  DataDialog.UserPickEndpoint := True;

  DialogResult := DataDialog.ShowDialog(nil);
  WriteLn(DialogResult);

  if DialogResult <> DialogResult_OK then
    Exit;

  // Display results
  WriteLn('EndpointDescriptor: ', DataDialog.EndpointDescriptor.ToString);
  WriteLn('NodeElement: ', DataDialog.NodeElement.ToString);
end;

Rem This example shows how to let the user browse for an OPC-UA data node (a Data Variable or a Property).

Private Sub ShowDialog_Main_Command_Click()
    OutputText = ""

    Dim DataDialog As New UADataDialog
    DataDialog.endpointDescriptor.UrlString = "opc.tcp://opcua.demo-this.com:51210/UA/SampleServer"
    DataDialog.UserPickEndpoint = True
    
    Dim DialogResult
    DialogResult = DataDialog.ShowDialog
    
    OutputText = OutputText & DialogResult & vbCrLf
    If DialogResult <> 1 Then   ' OK
        Exit Sub
    End If
    
    ' Display results
    OutputText = OutputText & "EndpointDescriptor: " & DataDialog.endpointDescriptor & vbCrLf
    OutputText = OutputText & "NodeElement: " & DataDialog.NodeElement & vbCrLf
End Sub

Rem This example shows how to let the user browse for an OPC-UA data node (a Data Variable or a Property). 

Option Explicit

Const DialogResult_OK = 1

Dim DataDialog: Set DataDialog = CreateObject("OpcLabs.EasyOpc.UA.Forms.Browsing.UADataDialog")
DataDialog.EndpointDescriptor.UrlString = "opc.tcp://opcua.demo-this.com:51210/UA/SampleServer"
DataDialog.UserPickEndpoint = True

Dim dialogResult: dialogResult = DataDialog.ShowDialog
WScript.Echo dialogResult

If dialogResult <> DialogResult_OK Then
    WScript.Quit
End If

' Display results
WScript.Echo "EndpointDescriptor: " & DataDialog.EndpointDescriptor
WScript.Echo "NodeElement: " & DataDialog.NodeElement

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

_UADataDialog Members
OpcLabs.EasyOpc.UA.Forms.Browsing.ComTypes Namespace

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