public override object EditValue(ITypeDescriptorContext context, System.IServiceProvider provider, object value)
{
IWindowsFormsEditorService svc = provider.GetService(typeof(IWindowsFormsEditorService)) as IWindowsFormsEditorService;
if (svc != null)
{
IBaseNode baseNode = context.Instance as IBaseNode;
if (baseNode != null)
{
using (DataConnectionForm frm = new DataConnectionForm(baseNode))
{
IDataPersistence dp = getDataPersistence(baseNode);
if (dp != null)
{
IDecisionTree tree = baseNode.Tree;
List <string> Elements = new List <string>();
foreach (string reference in dp.DataConnections)
{
IBaseNode node = tree.GetNodeByReference(reference);
if (node != null)
{
Elements.Add(node.Name);
}
}
frm.Elements = Elements;
if (svc.ShowDialog(frm) == DialogResult.OK)
{
List <string> result = new List <string>();
IBaseNode dataNodes = tree.RootNode.GetNode(eNodeType.DataObjects);
foreach (string name in frm.Elements)
{
IBaseNode dc = dataNodes.GetNode(name);
if (dc != null)
{
result.Add(dc.Reference);
}
}
value = result.ToArray();
}
}
}
}
}
return(value);
}
protected string GetNodeName(string name, IBaseNode node)
{
if (node != null)
{
int index = 1;
bool found = false;
string newName = name;
while (!found)
{
newName = string.Format("{0}-{1}", name, index++);
found = node.GetNode(newName) == null;
}
return(newName);
}
return(name);
}