// Summary:
// Get a database context, which is requried to start reading
// objects from database file.
//
//protected DbContext _dbContext;
//public DbContext getDbContext()
//{
// // option:
// // 0 - odbc connection (default)
// // 1 - oledb connection
// if (_dbContext == null)
// _dbContext = new DbContext(projDef.LocalDatabaseName, 0);
// return _dbContext;
//}
// Summary:
// Synchronize objects on the tree.
// Remarks:
// After synchronization, each tree will have an a DataView of objects.
//
public int syncObjectsOnTree(Tree inputTree, bool readSubTree = true)
{
int nSync = 0;
List <Tree> trees = null;
if (readSubTree == true)
{
trees = inputTree.ToList();
}
else
{
trees = new List <Tree>();
trees.Add(inputTree);
}
foreach (Tree tree in trees)
{
if (tree.RefDomainName == null || tree.RefObjsName == null)
{
continue;
}
Domain domain = null;
if (domains.ContainsKey(tree.RefDomainName))
{
domain = domains[tree.RefDomainName];
}
if (domain == null)
{
continue;
}
DGObjects objs = null;
if (domain.objsContainer.ContainsKey(tree.RefObjsName))
{
objs = domain.objsContainer[tree.RefObjsName];
}
if (objs == null)
{
continue;
}
if (objs.rawDataSet.Tables.Count == 0)
{
continue;
}
// Open a view on the table, and apply filter and sort rule on the table
//
DataTable dt = objs.rawDataSet.Tables[0];
DataView dv = new DataView(dt, tree.Filter, tree.Sort, DataViewRowState.CurrentRows);
tree.ObjectsView = dv;
tree.RefObjs = objs;
}
return(nSync);
}
