} // proc InitializeData
/// <summary></summary>
/// <param name="commit"></param>
/// <returns></returns>
public override async Task <bool> UnloadAsync(bool?commit = default(bool?))
{
if (data != null && data.IsDirty)
{
await CommitEditAsync();
}
dataAccess?.Dispose();
dataAccess = null;
data = null;
obj = null;
return(await base.UnloadAsync(commit));
} // func UnloadAsync
/// <summary></summary>
/// <param name="arguments"></param>
/// <returns></returns>
protected override async Task LoadInternAsync(LuaTable arguments)
{
async Task CreateNewObjectAsync()
{
// load schema
var documentType = (string)arguments.GetMemberValue("createNew");
if (documentType == null)
{
throw new ArgumentException("No 'object' or 'createNew' set.");
}
// get the object info for the type
var objectInfo = Shell.ObjectInfos[documentType];
if (objectInfo.CreateServerSiteOnly || String.IsNullOrEmpty(objectInfo.DocumentUri))
{
throw new ArgumentNullException("object", "Parameter 'object' is missing.");
}
// create the new object entry
obj = await Shell.CreateNewObjectAsync(objectInfo);
} // proc CreateNewObject
// get the object reference for the document
obj = (PpsObject)arguments.GetMemberValue("Object");
// new document or load one
using (var transaction = await Shell.MasterData.CreateTransactionAsync(PpsMasterDataTransactionLevel.Write))
{
if (obj == null) // no object given
{
await CreateNewObjectAsync();
}
data = await obj.GetDataAsync <PpsObjectDataSet>();
// register events, owner, and in the openDocuments dictionary
dataAccess = await data.AccessAsync(arguments);
dataAccess.DisableUI = new Func <IDisposable>(() => DisableUI("Verarbeite Daten...", -1));
dataAccess.DataChanged += (sender, e) => OnDataChanged();
transaction.Commit();
}
// get the pane to view, if it is not given
if (!arguments.ContainsKey("pane"))
{
// try to get the uri from the pane list
var info = Shell.GetObjectInfo(obj.Typ);
var paneUri = info["defaultPane"] as string;
if (!String.IsNullOrEmpty(paneUri))
{
arguments.SetMemberValue("Pane", paneUri);
}
else
{
// read the schema meta data
paneUri = data.DataSetDefinition.Meta.GetProperty <string>(PpsDataSetMetaData.DefaultPaneUri, null);
if (!String.IsNullOrEmpty(paneUri))
{
arguments.SetMemberValue("Pane", paneUri);
}
}
}
// Load mask
await base.LoadInternAsync(arguments);
InitializeData();
} // proc LoadInternAsync
