Examples - User Interface - OPC A&E category dialog

.NET

C#
VB.NET

// This example shows how to let the user browse for OPC Alarms&Events categories. 
//
// 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.Linq;
using System.Windows.Forms;
using OpcLabs.EasyOpc.AlarmsAndEvents.Forms.Browsing;

namespace FormsDocExamples._AECategoryDialog
{
    static class ShowDialog
    {
        public static void Main1(IWin32Window owner)
        {
            var categoryDialog = new AECategoryDialog
            {
                ServerDescriptor = {ServerClass = "OPCLabs.KitEventServer.2"}
            };

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

            // Display results
            string categoryElementsString = string.Join("\n", categoryDialog.CategoryElements.Select(element => element));
            MessageBox.Show(owner, categoryElementsString);
        }
    }
}

' This example shows how to let the user browse for OPC Alarms&Events categories.
'
' Find all latest examples here: https://opclabs.doc-that.com/files/onlinedocs/OPCLabs-OpcStudio/Latest/examples.html .
' OPC client and subscriber examples in VB.NET on GitHub: https://github.com/OPCLabs/Examples-QuickOPC-VBNET .
' 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.

Imports OpcLabs.EasyOpc
Imports OpcLabs.EasyOpc.AlarmsAndEvents.AddressSpace
Imports OpcLabs.EasyOpc.AlarmsAndEvents.Forms.Browsing

Namespace FormsDocExamples._AECategoryDialog
    Friend Class ShowDialog
        Shared Sub Main1(owner As IWin32Window)
            Dim categoryDialog = New AECategoryDialog() With {
                .ServerDescriptor = New ServerDescriptor() With {
                    .ServerClass = "OPCLabs.KitEventServer.2"
                }
            }

            Dim dialogResult As DialogResult = categoryDialog.ShowDialog(owner)
            If dialogResult <> DialogResult.OK Then
                Return
            End If

            ' Display results
            Dim categoryElementsString As String = String.Join("\n", categoryDialog.CategoryElements.Select(Function(element As AECategoryElement) element))
            MessageBox.Show(owner, categoryElementsString)
        End Sub
    End Class
End Namespace

Python

Python (.NET)

# This example shows how to let the user browse for OPC Alarms&Events categories.
#
# 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.AlarmsAndEvents.Forms.Browsing import *


categoryDialog = AECategoryDialog()
categoryDialog.ServerDescriptor.ServerClass = "OPCLabs.KitEventServer.2"

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

# Display results.
print()
for categoryElement in categoryDialog.CategoryElements:
    print(categoryElement)

Concepts

OPC-A&E Category Dialog