// This example shows how to obtain a data type of an OPC item.
using System;
using OpcLabs.BaseLib.ComInterop;
using OpcLabs.EasyOpc.DataAccess;
using OpcLabs.EasyOpc.DataAccess.Extensions;
using OpcLabs.EasyOpc.OperationModel;
namespace DocExamples.DataAccess._EasyDAClientExtension
{
class GetDataTypePropertyValue
{
public static void Main1()
{
// Instantiate the client object.
var client = new EasyDAClient();
// Get the DataType property value, already converted to VarType
VarType varType;
try
{
varType = client.GetDataTypePropertyValue("", "OPCLabs.KitServer.2", "Simulation.Random");
}
catch (OpcException opcException)
{
Console.WriteLine("*** Failure: {0}", opcException.GetBaseException().Message);
return;
}
// Display the obtained data type
Console.WriteLine("VarType: {0}", varType); // Display data type symbolically
}
}
}
# This example shows how to obtain a data type of an OPC item.
# The QuickOPC package is needed. Install it using "pip install opclabs_quickopc".
import opclabs_quickopc
# Import .NET namespaces.
from OpcLabs.BaseLib.ComInterop import *
from OpcLabs.EasyOpc.DataAccess import *
from OpcLabs.EasyOpc.DataAccess.Extensions import *
from OpcLabs.EasyOpc.OperationModel import *
# Instantiate the client object.
client = EasyDAClient()
# Get the DataType property value, already converted to VarType.
try:
varType = IEasyDAClientExtension2.GetDataTypePropertyValue(client, '', 'OPCLabs.KitServer.2', 'Simulation.Random')
except OpcException as opcException:
print('*** Failure: ' + opcException.GetBaseException().Message)
exit()
# Display the obtained data type.
print('VarType: ', varType, sep='') # Display data type symbolically
print('Finished.')
' This example shows how to obtain a data type of an OPC item.
Imports OpcLabs.BaseLib.ComInterop
Imports OpcLabs.EasyOpc.DataAccess
Imports OpcLabs.EasyOpc.DataAccess.Extensions
Imports OpcLabs.EasyOpc.OperationModel
Namespace DataAccess._EasyDAClientExtension
Friend Class GetDataTypePropertyValue
Public Shared Sub Main1()
Dim client = New EasyDAClient()
' Get the DataType property value, already converted to VarType
Dim varType As VarType
Try
varType = client.GetDataTypePropertyValue("", "OPCLabs.KitServer.2", "Simulation.Random")
Catch opcException As OpcException
Console.WriteLine("*** Failure: {0}", opcException.GetBaseException().Message)
Exit Sub
End Try
' Display the obtained data type
Console.WriteLine("VarType: {0}", varType) ' Display data type symbolically
End Sub
End Class
End Namespace
