private async Task SaveTree()
{
try
{
ElementsTree tree = null;
try
{
tree = ReadDataFromDocument(App.IActiveDoc2);
tree.Version = tree.Version + 1;
}
catch (ThirdPartyStreamNotFoundException)
{
//create new tree only if stream was never created, show an error otherwise
tree = new ElementsTree(1,
new Element(1, "Root",
new Element(2, "Level1-A",
new Element(4, "Level2")),
new Element(5, "Level1-B")));
}
await SaveDataToDocument(App.IActiveDoc2, tree);
App.SendMsgToUser2("Data saved",
(int)swMessageBoxIcon_e.swMbInformation,
(int)swMessageBoxBtn_e.swMbOk);
}
catch (Exception ex)
{
App.SendMsgToUser2(ex.Message,
(int)swMessageBoxIcon_e.swMbStop,
(int)swMessageBoxBtn_e.swMbOk);
}
}
private async Task SaveDataToDocument(IModelDoc2 model, ElementsTree data)
{
int err = -1;
int warn = -1;
model.SetSaveFlag();
const int S_OK = 0;
bool?result = null;;
var onSaveToStorageNotifyFunc = new Func <int>(() =>
{
try
{
StoreData(model, data, STREAM_NAME);
result = true;
}
catch
{
result = false;
}
return(S_OK);
});
var partSaveToStorageNotify = new DPartDocEvents_SaveToStorageNotifyEventHandler(onSaveToStorageNotifyFunc);
var assmSaveToStorageNotify = new DAssemblyDocEvents_SaveToStorageNotifyEventHandler(onSaveToStorageNotifyFunc);
var drwSaveToStorageNotify = new DDrawingDocEvents_SaveToStorageNotifyEventHandler(onSaveToStorageNotifyFunc);
#region Attach Event Handlers
switch ((swDocumentTypes_e)model.GetType())
{
case swDocumentTypes_e.swDocPART:
(model as PartDoc).SaveToStorageNotify += partSaveToStorageNotify;
break;
case swDocumentTypes_e.swDocASSEMBLY:
(model as AssemblyDoc).SaveToStorageNotify += assmSaveToStorageNotify;
break;
case swDocumentTypes_e.swDocDRAWING:
(model as DrawingDoc).SaveToStorageNotify += drwSaveToStorageNotify;
break;
}
#endregion
if (!model.Save3((int)swSaveAsOptions_e.swSaveAsOptions_Silent, ref err, ref warn))
{
throw new InvalidOperationException($"Failed to save the model: {(swFileSaveError_e)err}");
}
await Task.Run(() =>
{
while (!result.HasValue)
{
System.Threading.Thread.Sleep(10);
}
});
#region Detach Event Handlers
switch ((swDocumentTypes_e)model.GetType())
{
case swDocumentTypes_e.swDocPART:
(model as PartDoc).SaveToStorageNotify -= partSaveToStorageNotify;
break;
case swDocumentTypes_e.swDocASSEMBLY:
(model as AssemblyDoc).SaveToStorageNotify -= assmSaveToStorageNotify;
break;
case swDocumentTypes_e.swDocDRAWING:
(model as DrawingDoc).SaveToStorageNotify -= drwSaveToStorageNotify;
break;
}
#endregion
if (!result.Value)
{
throw new Exception("Failed to store the data");
}
}