/// <summary>
/// Browses for children of the element at the current node.
/// </summary>
protected void Browse(AddressSpaceDataBase.TagsTableRow itemID, OpcDa::BrowseFilters filters)
{
try
{
// begin a browse.
OpcDa::BrowsePosition position = null;
foreach (var element in m_Dictionary.Browse(itemID, filters, out position))
{
AddBrowseElement(element);
}
// loop until all elements have been fetched.
while (position != null)
{
DialogResult result = MessageBox.Show(
"More items meeting search criteria exist. Continue browse?",
"Browse Items",
MessageBoxButtons.YesNo, MessageBoxIcon.Question
);
if (result != DialogResult.Yes)
{
break;
}
// fetch next batch of elements, add children.
foreach (var element in m_Dictionary.BrowseNext(ref position))
{
AddBrowseElement(element);
}
}
}
catch (Exception e)
{
MessageBox.Show(e.Message);
}
}
/// <summary> /// While implemented adds the browse element to parent collection. /// </summary> /// <param name="element">The element to add.</param> protected abstract void AddBrowseElement(AddressSpaceDataBase.TagsTableRow element);
protected override void AddBrowseElement(AddressSpaceDataBase.TagsTableRow element)
{
new BrowseElementNode(element, m_Parent);
}
/// <summary>
/// Saves the specified repository.
/// </summary>
/// <param name="repository">The repository.</param>
/// <param name="parentKey">The parent key.</param>
/// <param name="root">if set to <c>true</c> it is root browse element.</param>
public override void Save(AddressSpaceDataBase repository, int parentKey, bool root)
{
m_TableRow = repository.TagsTable.AddRow(this.Tag, parentKey, root);
base.Save(repository, m_TableRow.ID, false);
}
/// <summary>
/// Initializes a new instance of the <see cref="BrowseElementNode"/> class.
/// </summary>
/// <param name="element">The element to start with.</param>
/// <param name="parent">The parent.</param>
internal BrowseElementNode(AddressSpaceDataBase.TagsTableRow element, IBrowse parent)
: this(element.GetBrowseElement(), parent)
{
m_TableRow = element;
}
private static void ImportTag
(
AddressSpaceDataBase.TagsTableRow parentItem,
string targetNamespace,
UniqueName uniqueName,
XmlQualifiedName parentObject,
List <NodeDesign> nodes,
List <InstanceDesign> parentChildren
)
{
Opc.Da.BrowseElement pbe = parentItem.GetBrowseElement();
if (pbe.IsItem)
{
VariableDesign var = new VariableDesign()
{
SymbolicName = new XmlQualifiedName(uniqueName.GetUniqueName(pbe.Name), targetNamespace),
DisplayName = new LocalizedText()
{
Value = pbe.Name
},
DataType = GetBaseDataType(),
TypeDefinition = GetBaseDataVariableType(),
Description = new LocalizedText()
{
Value = pbe.ItemName
},
AccessLevel = AccessLevel.ReadWrite,
AccessLevelSpecified = true,
ValueRank = ValueRank.Scalar,
ValueRankSpecified = true,
WriteAccess = 0
};
parentChildren.Add(var);
SortedDictionary <int, Opc.Da.ItemProperty> prprts = new SortedDictionary <int, Opc.Da.ItemProperty>();
foreach (Opc.Da.ItemProperty item in pbe.Properties)
{
prprts.Add(item.ID.Code, item);
}
if (prprts.ContainsKey(Opc.Da.Property.DATATYPE.Code))
{
GetDATATYPE(var, prprts[Opc.Da.Property.DATATYPE.Code]);
}
GetEUTYPE(var, prprts);
if (prprts.ContainsKey(Opc.Da.Property.ACCESSRIGHTS.Code))
{
GetACCESSRIGHTS(var, prprts[Opc.Da.Property.ACCESSRIGHTS.Code]);
}
}
else
{
ObjectDesign sf = CreateFolder(new XmlQualifiedName(uniqueName.GetUniqueName(pbe.Name), targetNamespace), pbe.ItemName, pbe.Name);
nodes.Add(sf);
List <InstanceDesign> myChildren = new List <InstanceDesign>();
foreach (AddressSpaceDataBase.TagsTableRow item in parentItem.GetTagsTableRows())
{
ImportTag(item, targetNamespace, uniqueName, sf.SymbolicName, nodes, myChildren);
}
sf.Children = new ListOfChildren()
{
Items = myChildren.ToArray()
};
sf.References = new Reference[]
{ new Reference()
{
IsInverse = true,
ReferenceType = CreateXmlQualifiedName(Opc.Ua.BrowseNames.Organizes),
TargetId = parentObject
} };
}
}
