QuickOPC User's Guide and Reference
Examples - User Interface - OPC A&E category dialog
// This example shows how to let the user browse for OPC Alarms&Events categories. 

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.

# 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)

 

See Also

Conceptual