/// <summary>
/// Populates the tree with the event attributes supported by the category.
/// </summary>
private void ShowEventAttributes(TreeNodeCollection nodes, Technosoftware.DaAeHdaClient.Ae.TsCAeCategory category)
{
Technosoftware.DaAeHdaClient.Ae.TsCAeAttribute[] attributes = null;
// fetch attributes.
try
{
attributes = mServer_.QueryEventAttributes(category.ID);
}
catch (Exception e)
{
MessageBox.Show(e.Message);
return;
}
// add attributes to tree.
foreach (Technosoftware.DaAeHdaClient.Ae.TsCAeAttribute attribute in attributes)
{
// create node.
TreeNode node = new TreeNode(attribute.Name)
{
ImageIndex = Resources.IMAGE_EXPLODING_BOX,
SelectedImageIndex = Resources.IMAGE_EXPLODING_BOX,
Tag = attribute
};
// add to tree.
nodes.Add(node);
}
}
/// <summary>
/// Populates the tree with the event attributes supported by the category.
/// </summary>
private void ShowEventAttributes(TreeNodeCollection nodes, OpcClientSdk.Ae.TsCAeCategory category)
{
OpcClientSdk.Ae.TsCAeAttribute[] attributes = null;
// fetch attributes.
try
{
attributes = m_server.QueryEventAttributes(category.ID);
}
catch (Exception e)
{
MessageBox.Show(e.Message);
return;
}
// add attributes to tree.
foreach (OpcClientSdk.Ae.TsCAeAttribute attribute in attributes)
{
// create node.
TreeNode node = new TreeNode(attribute.Name);
node.ImageIndex = Resources.IMAGE_EXPLODING_BOX;
node.SelectedImageIndex = Resources.IMAGE_EXPLODING_BOX;
node.Tag = attribute;
// add to tree.
nodes.Add(node);
}
}
/// <summary>
/// Populates the tree view with the attributes.
/// </summary>
private void FetchAttributes(TreeNode parent, TsCAeServer server, int categoryID)
{
OpcClientSdk.Ae.TsCAeAttribute[] attributes = server.QueryEventAttributes(categoryID);
foreach (OpcClientSdk.Ae.TsCAeAttribute attribute in attributes)
{
string label = String.Format(
"[{0}] {1} ({2})",
attribute.ID,
attribute.Name,
OpcClientSdk.OpcConvert.ToString(attribute.DataType));
TreeNode node = new TreeNode(label);
node.ImageIndex = Resources.IMAGE_EXPLODING_BOX;
node.SelectedImageIndex = Resources.IMAGE_EXPLODING_BOX;
node.Tag = attribute;
parent.Nodes.Add(node);
}
}
/// <summary>
/// Populates the tree view with the attributes.
/// </summary>
private void FetchAttributes(TreeNode parent, TsCAeServer server, int categoryId)
{
Technosoftware.DaAeHdaClient.Ae.TsCAeAttribute[] attributes = server.QueryEventAttributes(categoryId);
foreach (Technosoftware.DaAeHdaClient.Ae.TsCAeAttribute attribute in attributes)
{
string label = String.Format(
"[{0}] {1} ({2})",
attribute.ID,
attribute.Name,
Technosoftware.DaAeHdaClient.OpcConvert.ToString(attribute.DataType));
TreeNode node = new TreeNode(label)
{
ImageIndex = Resources.IMAGE_EXPLODING_BOX,
SelectedImageIndex = Resources.IMAGE_EXPLODING_BOX,
Tag = attribute
};
parent.Nodes.Add(node);
}
}
/// <summary>
/// Find attributes for condition by searching all categories.
/// </summary>
private void FindAttributes()
{
try
{
Technosoftware.DaAeHdaClient.Ae.TsCAeCategory[] categories = mServer_.QueryEventCategories((int)TsCAeEventType.Condition);
for (int ii = 0; ii < categories.Length; ii++)
{
// fetch conditions for category.
string[] conditions = mServer_.QueryConditionNames(categories[ii].ID);
// check if this is the category containing the current condition.
bool found = false;
for (int jj = 0; jj < conditions.Length; jj++)
{
if (conditions[jj] == mCondition_)
{
mCategoryId_ = categories[ii].ID;
found = true;
break;
}
}
// fetch the attributes when found.
if (found)
{
mAttributes_ = mServer_.QueryEventAttributes(categories[ii].ID);
break;
}
}
}
catch (Exception e)
{
MessageBox.Show(e.Message);
return;
}
}
public void Run()
{
try
{
const string serverUrl = "opcae://localhost/Technosoftware.AeSample";
Console.WriteLine();
Console.WriteLine("Simple OPC AE Client based on the OPC AE Client SDK .NET Standard");
Console.WriteLine("-----------------------------------------------------------------");
Console.Write(" Press <Enter> to connect to "); Console.WriteLine(serverUrl);
Console.ReadLine();
Console.WriteLine(" Please wait...");
TsCAeServer myAeServer = new TsCAeServer();
// Connect to the server
myAeServer.Connect(serverUrl);
Console.WriteLine(" Connected, press <Enter> to create an active subscription and press <Enter>");
Console.WriteLine(" again to deactivate the subscription. This stops the reception of new events.");
Console.ReadLine();
TsCAeSubscriptionState state = new TsCAeSubscriptionState {
Active = true, BufferTime = 0, MaxSize = 0, ClientHandle = 100, Name = "Simple Event Subscription"
};
TsCAeCategory[] categories = myAeServer.QueryEventCategories((int)TsCAeEventType.Condition);
TsCAeAttribute[] attributes = null;
attributes = myAeServer.QueryEventAttributes(categories[0].ID);
int[] attributeIDs = new int[2];
attributeIDs[0] = attributes[0].ID;
attributeIDs[1] = attributes[1].ID;
TsCAeSubscription subscription;
subscription = (TsCAeSubscription)myAeServer.CreateSubscription(state);
subscription.DataChangedEvent += OnDataChangedEvent;
subscription.SelectReturnedAttributes(categories[0].ID, attributeIDs);
Console.ReadLine();
subscription.DataChangedEvent -= OnDataChangedEvent;
Console.WriteLine(" Subscription deactivated, press <Enter> to remove the subscription and disconnect from the server.");
subscription.Dispose(); // Remove subscription
myAeServer.Disconnect(); // Disconnect from server
myAeServer.Dispose(); // Dispose server object
Console.ReadLine();
Console.WriteLine(" Disconnected from the server.");
Console.WriteLine();
}
catch (OpcResultException e)
{
Console.WriteLine(String.Format(" {0}", e.Message));
Console.ReadLine();
return;
}
catch (Exception e)
{
Console.WriteLine(String.Format(" {0}", e.Message));
Console.ReadLine();
return;
}
}