} // end AddChild
/// <summary>
/// Removes the child if there is any. The entire branch of the aChild will be removed as well from the address space.
/// </summary>
/// <param name="aChild">AddressSpaceElement child to be removed from this instance</param>
/// <returns>
/// true - aChild removed
/// false - aChild was not removed
/// </returns>
/// <include
/// file='TBNS.doc.xml'
/// path='//class[@name="DaAddressSpaceElement"]/
/// method[@name="RemoveChild"]/doc/*'
/// />
public override bool RemoveChild(AddressSpaceElement aChild)
{
if (!HasChildren)
{
// just log a warning, but proceed then with the removal attempt
Application.Instance.Trace(
EnumTraceLevel.WRN, EnumTraceGroup.OPCSERVER,
"DaAddressSpaceElement.RemoveChild", "This element does not allow childred");
} // end if
DaAddressSpaceElement child = aChild as DaAddressSpaceElement;
if (child == null)
{
Application.Instance.Trace(EnumTraceLevel.WRN, EnumTraceGroup.OPCSERVER,
"DaAddressSpaceElement.RemoveChild", "Invalid child provided");
return false;
} // end if
if (child.HasChildren)
{
// Remove the clildren of the child
ArrayList otherChildren = child.GetChildren();
foreach (AddressSpaceElement element in otherChildren)
{
child.RemoveChild(element);
} // end for
} // end if
int result = OTBFunctions.OTSRemoveAddressSpaceElement(child.ObjectHandle);
if (!ResultCode.SUCCEEDED(result))
{
Application.Instance.Trace(EnumTraceLevel.WRN, EnumTraceGroup.OPCSERVER,
"DaAddressSpaceElement.RemoveChild",
"OTSRemoveAddressSpaceElement has failed with code" + result.ToString());
return false;
} // end if
result = Application.Instance.DaAddressSpaceRoot.RemoveElementFromArray(child);
if (!ResultCode.SUCCEEDED(result))
{
Application.Instance.Trace(EnumTraceLevel.WRN, EnumTraceGroup.OPCSERVER,
"DaAddressSpaceElement.RemoveChild",
"RemoveElementFromArray has failed with code" + result.ToString());
return false;
} // end if
return base.RemoveChild(aChild);
} // end RemoveChild