public override plcdb_lib.Models.Model.TagsDataTable BrowseTags()
{
try
{
Model.TagsDataTable Table = new Model.TagsDataTable();
if (Server == null)
{
return(Table);
}
ServerAddressSpaceBrowser Browser = Server.GetAddressSpaceBrowser();
foreach (String ItemId in Browser.GetItemIds(BrowseType.Flat, string.Empty, VarEnum.VT_EMPTY, 0))
{
Model.TagsRow Row = Table.NewTagsRow();
Row.Address = ItemId;
Row.Controller = ControllerInfo.PK;
Table.AddTagsRow(Row);
}
Table.AcceptChanges();
return(Table);
}
catch (Exception ex)
{
throw new Exception("Error browsing tags from OPC server: " + ControllerInfo.Address + "\\" + ControllerInfo.opc_server, ex);
}
}
private void OnRefreshTags()
{
Model.TagsDataTable AllTags = CurrentController.Controller.BrowseTags();
//add new tags
foreach (Model.TagsRow row in AllTags)
{
if (ActiveModel.Tags.Where(p => p.Controller == CurrentController.PK && p.Address == row.Address).Count() == 0)
{
Model.TagsRow NewRow = ActiveModel.Tags.NewTagsRow();
NewRow.Controller = CurrentController.PK;
foreach (DataColumn col in ActiveModel.Tags.Columns)
{
if (col.ColumnName != "PK")
{
NewRow[col.ColumnName] = row[col.ColumnName];
}
}
ActiveModel.Tags.AddTagsRow(NewRow);
}
}
//delete old tags
foreach (Model.TagsRow row in ActiveModel.Tags.Where(p => p.Controller == CurrentController.PK))
{
if (AllTags.Where(p => p.Address == row.Address).Count() == 0)
{
row.Delete();
}
}
ActiveModel.Tags.AcceptChanges();
SetAvailableTags();
}
private void SetAvailableTags()
{
Model.TagsDataTable tbl = new Model.TagsDataTable();
foreach (Model.TagsRow row in CurrentController.GetTagsRows())
{
tbl.ImportRow(row);
}
AvailableTags = tbl.AsEnumerable();
}
public override Model.TagsDataTable BrowseTags()
{
if (Tags == null)
{
Tags = new Model.TagsDataTable();
Model.TagsRow Sine = Tags.NewTagsRow();
Sine.Address = "Doubles\\Sine";
Sine.Name = Sine.Address;
Sine.DataType = typeof(Double);
Sine.Controller = ControllerInfo.PK;
Model.TagsRow Rand = Tags.NewTagsRow();
Rand.Address = "Doubles\\Rand";
Rand.Name = Rand.Address;
Rand.DataType = typeof(Double);
Rand.Controller = ControllerInfo.PK;
Model.TagsRow AlwaysOn = Tags.NewTagsRow();
AlwaysOn.Address = "Bools\\AlwaysOn";
AlwaysOn.Name = AlwaysOn.Address;
AlwaysOn.DataType = typeof(Boolean);
AlwaysOn.Controller = ControllerInfo.PK;
Model.TagsRow AlwaysOff = Tags.NewTagsRow();
AlwaysOff.Address = "Bools\\AlwaysOff";
AlwaysOff.Name = AlwaysOff.Address;
AlwaysOff.DataType = typeof(Boolean);
AlwaysOff.Controller = ControllerInfo.PK;
Model.TagsRow RandBool = Tags.NewTagsRow();
RandBool.Address = "Bools\\RandBool";
RandBool.Name = RandBool.Address;
RandBool.DataType = typeof(Boolean);
RandBool.Controller = ControllerInfo.PK;
Model.TagsRow Now = Tags.NewTagsRow();
Now.Address = "DateTimes\\Now";
Now.Name = Now.Address;
Now.DataType = typeof(DateTime);
Now.Controller = ControllerInfo.PK;
Tags.AddTagsRow(Sine);
Tags.AddTagsRow(Rand);
Tags.AddTagsRow(AlwaysOn);
Tags.AddTagsRow(AlwaysOff);
Tags.AddTagsRow(RandBool);
Tags.AddTagsRow(Now);
}
return(Tags);
}
