OPC Studio User's Guide and Reference
Examples - User Interface - OPC Classic generic browsing dialog
View with Navigation Tools

.NET

// This example shows how to let the user browse for an OPC Data Access node in a dialog.
//
// Find all latest examples here: https://opclabs.doc-that.com/files/onlinedocs/OPCLabs-OpcStudio/Latest/examples.html .
// OPC client and subscriber examples in C# on GitHub: https://github.com/OPCLabs/Examples-QuickOPC-CSharp .
// Missing some example? Ask us for it on our Online Forums, https://www.opclabs.com/forum/index ! You do not have to own
// a commercial license in order to use Online Forums, and we reply to every post.

using System.Windows.Forms;
using OpcLabs.EasyOpc.Forms.Browsing;

namespace FormsDocExamples._OpcBrowseDialog
{
    static class ShowDialog
    {
        public static void Main1(IWin32Window owner)
        {
            var browseDialog = new OpcBrowseDialog();

            DialogResult dialogResult = browseDialog.ShowDialog(owner);
            if (dialogResult != DialogResult.OK)
                return;

            // Display results
            MessageBox.Show(owner, browseDialog.Outputs.CurrentNodeElement.DANodeElement);
        }
    }
}

COM

// This example shows how to let the user browse for an OPC Data Access node.
//
// Find all latest examples here: https://opclabs.doc-that.com/files/onlinedocs/OPCLabs-OpcStudio/Latest/examples.html .
// OPC client and subscriber examples in Object Pascal (Delphi) on GitHub: https://github.com/OPCLabs/Examples-QuickOPC-OP .
// Missing some example? Ask us for it on our Online Forums, https://www.opclabs.com/forum/index ! You do not have to own
// a commercial license in order to use Online Forums, and we reply to every post.

class procedure ShowDialog.Main;
var
  BrowseDialog: OpcLabs_EasyOpcForms_TLB._OpcBrowseDialog;
begin
  // Instantiate the dialog object
  BrowseDialog := CoOpcBrowseDialog.Create;

  BrowseDialog.ShowDialog(nil);

  // Display results
  WriteLn(BrowseDialog.Outputs.CurrentNodeElement.DANodeElement.ToString);
end;

Python

# This example shows how to let the user browse for an OPC Data Access node in a dialog.
#
# Find all latest examples here: https://opclabs.doc-that.com/files/onlinedocs/OPCLabs-OpcStudio/Latest/examples.html .
# OPC client and subscriber examples in Python on GitHub: https://github.com/OPCLabs/Examples-QuickOPC-Python .
# Missing some example? Ask us for it on our Online Forums, https://www.opclabs.com/forum/index ! You do not have to own
# a commercial license in order to use Online Forums, and we reply to every post.
# The QuickOPC package is needed. Install it using "pip install opclabs_quickopc".
import opclabs_quickopc

# Import .NET namespaces.
from System.Windows.Forms import *
from OpcLabs.EasyOpc.Forms.Browsing import *


browseDialog = OpcBrowseDialog()

dialogResult = browseDialog.ShowDialog()
print(dialogResult)
if dialogResult != DialogResult.OK:
    exit()

# Display results.
print('DANodeElement: ', browseDialog.Outputs.CurrentNodeElement.DANodeElement, sep='')

 

See Also

Concepts