public static void DataType()
{
var easyDAClient = new EasyDAClient();
ServerDescriptor serverDescriptor = "AutoJet.ACPFileServerDA.1";
// Browse for all leaves under the "Simulation" branch
DANodeElementCollection nodeElementCollection = easyDAClient.BrowseLeaves(serverDescriptor, "Simulation");
// Create list of node descriptors, one for each leaf obtained
DANodeDescriptor[] nodeDescriptorArray = nodeElementCollection
.Where(element => !element.IsHint) // filter out hint leafs that do not represent real OPC items (rare)
.Select(element => new DANodeDescriptor(element))
.ToArray();
// Get the value of DataType property; it is a 16-bit signed integer
ValueResult[] valueResultArray = easyDAClient.GetMultiplePropertyValues(serverDescriptor,
nodeDescriptorArray, DAPropertyIds.DataType);
for (int i = 0; i < valueResultArray.Length; i++)
{
DANodeDescriptor nodeDescriptor = nodeDescriptorArray[i];
// Check if there has been an error getting the property value
ValueResult valueResult = valueResultArray[i];
if (valueResult.Exception != null)
{
Console.WriteLine("{0}: *** {1}", nodeDescriptor.NodeId, valueResult.Exception.Message);
continue;
}
// Convert the data type to VarType
var varType = (VarType)(short)valueResult.Value;
// Display the obtained data type
Console.WriteLine("{0}: {1}", nodeDescriptor.ItemId, varType);
}
}
public string[] BrowseAccessPaths([NotNull] ServerDescriptor serverDescriptor, [NotNull] DANodeDescriptor nodeDescriptor)
{
throw new NotImplementedException();
}
