private void ControlSubscription_DataChange(DaSubscription aDaSubscription, DaItem[] changedItems, ValueQT[] newValues,
int[] results)
{
try
{
int count = changedItems.Length;
ControlDaItem[] controlItems = new ControlDaItem[count];
for (int i = 0; i < count; i++)
{
if (this.Contains(changedItems[i]))
{
int index = this.IndexOf(changedItems[i]);
((DaItem)this[index]).ValueQT = newValues[i];
if (null != ListChanged)
{
ListChanged(this, new ListChangedEventArgs(ListChangedType.ItemChanged, i));
} // end if
} // end if
controlItems[i] = (ControlDaItem)changedItems[i];
} // end for
this.OnDataChange((ControlDaSubscription)aDaSubscription, controlItems, newValues, results);
}
catch (Exception exc)
{
m_instance.Trace(EnumTraceLevel.ERR, EnumTraceGroup.CLIENT, "DataControl.DataControl_DataChange", exc.Message);
}
}
//-
#endregion
#region //PrivateMethods
//----------------------
private int CompareProperties(ControlDaItem x, ControlDaItem y)
{
int result = 0;
int directionModifier = 0;
if ((m_SortDirection == ListSortDirection.Ascending))
{
directionModifier = 1;
}
else
{
directionModifier = -1;
}
if ((x == null))
{
result = -1 * directionModifier;
}
else if ((y == null))
{
result = 1 * directionModifier;
}
else if ((System.Convert.ToDouble(m_SortProperty.GetValue(x)) < System.Convert.ToDouble(m_SortProperty.GetValue(y))))
{
result = -1 * directionModifier;
}
else if ((System.Convert.ToDouble(m_SortProperty.GetValue(x)) > System.Convert.ToDouble(m_SortProperty.GetValue(y))))
{
result = 1 * directionModifier;
}
else
{
result = 0;
}
return(result);
}
internal void CancelAddNew(ControlDaItem item, bool Remove)
{
item.CancelAddNew -= new ControlDaItem.CancelAddNewEventHandler(this.CancelAddNew);
if ((Remove))
{
this.Remove(item);
}
}
/// <summary>
/// Adds a new item to the list.
/// </summary>
/// <returns>The item added to the list.</returns>
internal object AddNew()
{
ControlDaItem item = new ControlDaItem(true);
this.Add(item);
item.CancelAddNew += new ControlDaItem.CancelAddNewEventHandler(this.CancelAddNew);
return(item);
}
/// <summary>
/// Removes the first occurrence of a specific <see cref="ControlDaItem">ControlDaItem</see> from the collection.
/// </summary>
/// <param name="item"></param>
internal void Remove(ControlDaItem item)
{
this.List.Remove(item);
}
/// <summary>
/// Inserts a <see cref="ControlDaItem">ControlDaItem</see> into the collection at the specified index.
/// </summary>
/// <param name="index">The zero-based index at which the item should be inserted. </param>
/// <param name="item">The <b>ControlDaItem</b> to insert.</param>
internal void Insert(int index, ControlDaItem item)
{
this.List.Insert(index, item);
}
} // end OnValidate
/// <summary>
/// Adds a <see cref="ControlDaItem">ControlDaItem</see> to the end of the collection.
/// </summary>
/// <param name="item">The <see cref="ControlDaItem">ControlDaItem</see> to be added to the end of the collection.</param>
internal void Add(ControlDaItem item)
{
this.List.Add(item);
} // end Add
//-
#endregion
#region Public Methods
//----------------------
/// <summary>
/// Starts the <see cref="DataControl">DataControl.</see>
/// </summary>
/// <remarks>
/// After starting the <B>DataControl</B> the client will be notified about the <see cref="ValueQT">value</see> changes for all the
/// <see cref="ControlDaItem">items</see> selected in the configuration phase. If an item is bound to a
/// Windows Forms Control then the new values will be displayed in this one.
/// </remarks>
/// <include
/// file='TBNC.doc.xml'
/// path='//class[@name="DataControl"]/method[@name="Start"]/doc/*'
/// />
public void Start()
{
try
{
if (m_session == null)
{
return;
}
this.Clear();
if (this.BinaryLicenseDa != string.Empty)
{
m_instance.Activate(EnumFeature.DA_CLIENT, this.BinaryLicenseDa);
}
if (this.BinaryLicenseXmlDa != string.Empty)
{
m_instance.Activate(EnumFeature.DA_CLIENT, this.BinaryLicenseXmlDa);
}
m_instance.Initialize();
m_newSession = new ControlDaSession(m_session.StoredUrl);
m_newSession.Connect(false, true, new ExecutionOptions());
m_newSession.ShutdownRequest += new ShutdownEventHandler(HandleSessionShutdownWithReconnection);
if (m_session.SubscriptionList.Length == 0)
{
return;
}
foreach (ControlDaSubscription currentSubscription in m_session.SubscriptionList)
{
ControlDaSubscription controlSubscription = new ControlDaSubscription(
currentSubscription.StoredUpdateRate,
m_newSession);
if (controlSubscription.Valid)
{
controlSubscription.Name = currentSubscription.StoredName;
controlSubscription.StoredName = controlSubscription.Name;
controlSubscription.StoredUpdateRate = controlSubscription.RequestedUpdateRate;
controlSubscription.IsActivated = currentSubscription.IsActivated;
controlSubscription.DataChanged += new DataChangedEventHandler(ControlSubscription_DataChange);
DaItem[] items = currentSubscription.ItemList;
for (int i = 0; i < items.Length; i++)
{
ControlDaItem controlItem = new ControlDaItem(
((ControlDaItem)items[i]).StoredId,
controlSubscription);
this.Add(controlItem);
} // end for
if (controlSubscription.IsActivated)
{
controlSubscription.Connect(true, true, new ExecutionOptions());
} // end if
} // end if
} // end foreach
m_session.Handle = m_newSession.Handle;
}
catch (Exception exc)
{
m_instance.Trace(
EnumTraceLevel.ERR,
EnumTraceGroup.CLIENT,
"DataControl.Start",
exc.ToString());
}
} // end Start
