public jsResponse<EmployeesCollection, Employees> EmployeesCollection_LoadAll()
{
jsResponse<EmployeesCollection, Employees> response = new jsResponse<EmployeesCollection, Employees>();
try
{
EmployeesQuery q = new EmployeesQuery();
q.Select(q.EmployeeID, q.FirstName, q.LastName);
EmployeesCollection collection = new EmployeesCollection();
collection.Load(q);
if(collection.Count == 0)
{
EnsureData();
collection = new EmployeesCollection();
collection.LoadAll();
}
response.collection = collection;
}
catch (Exception ex)
{
response.exception = ex.Message;
}
return response;
}
public EmployeesCollection.EmployeesCollectionWCFPacket Employees_QueryForCollection(string serializedQuery)
{
EmployeesQuery query = EmployeesQuery.SerializeHelper.FromXml(
serializedQuery, typeof(EmployeesQuery), AllKnownTypes) as EmployeesQuery;
EmployeesCollection coll = new EmployeesCollection();
if (coll.Load(query))
{
return coll;
}
return null;
}
public Hierarchical()
{
InitializeComponent();
EmployeesQuery q = new EmployeesQuery();
q.es.Top = 15;
q.Select(q.EmployeeID, q.FirstName, q.LastName, q.BirthDate.As("ExtraColumn"));
EmployeesCollection coll = new EmployeesCollection();
coll.Load(q);
dataGrid1.DataSource = coll;
}
public jsResponse<EmployeesCollection, Employees> Employees_LoadHierarchical()
{
jsResponse<EmployeesCollection, Employees> response = new jsResponse<EmployeesCollection, Employees>();
try
{
// The Main Query
EmployeesQuery q = new EmployeesQuery("e");
q.Select(q.EmployeeID, q.FirstName, q.LastName, q.City, q.Country, q.HomePhone, q.Region, q.PostalCode, q.Title);
q.Where(q.EmployeeID < 7);
// The OrdersCollection
OrdersQuery o1 = q.Prefetch<OrdersQuery>(Employees.Prefetch_OrdersCollectionByEmployeeID);
EmployeesQuery emp1 = o1.GetQuery<EmployeesQuery>();
o1.Where(emp1.EmployeeID < 7);
// The OrdersDetailsCollection
OrderDetailsQuery od = q.Prefetch<OrderDetailsQuery>(Employees.Prefetch_OrdersCollectionByEmployeeID, Orders.Prefetch_OrderDetailsCollectionByOrderID);
EmployeesQuery emp2 = od.GetQuery<EmployeesQuery>();
OrdersQuery o2 = od.GetQuery<OrdersQuery>();
od.Where(emp2.EmployeeID < 7);
// Load It
EmployeesCollection coll = new EmployeesCollection();
if (coll.Load(q))
{
response.collection = coll;
response.columnCollection["Employees"] = jsColumn.PopulateColumns(coll[0]);
response.columnCollection["Orders"] = jsColumn.PopulateColumns(coll[0].OrdersCollectionByEmployeeID[0]);
response.columnCollection["OrderDetails"] = jsColumn.PopulateColumns(coll[0].OrdersCollectionByEmployeeID[0].OrderDetailsCollectionByOrderID[0]);
}
}
catch (Exception ex)
{
response.exception = ex.Message;
}
return response;
}
public EmployeesCollection Employees_LoadByDynamic(string serializedQuery)
{
EmployeesQuery query = EmployeesQuery.SerializeHelper.FromXml(
serializedQuery, typeof(EmployeesQuery), AllKnownTypes) as EmployeesQuery;
EmployeesCollection coll = new EmployeesCollection();
coll.es.IsLazyLoadDisabled = true;
coll.Load(query);
return coll;
}
public jsResponse<EmployeesCollection, Employees> Employees_Pager(jsPagerRequest request)
{
jsResponse<EmployeesCollection, Employees> response = new jsResponse<EmployeesCollection, Employees>();
try
{
// We send the the same data they sent us back
response.pagerRequest = request;
EmployeesQuery q = null;
if (response.pagerRequest.getTotalRows == true)
{
// Get the total count of rows in the Employee table
q = new EmployeesQuery();
q.es.CountAll = true;
response.pagerRequest.totalRows = q.ExecuteScalar<int>();
}
q = new EmployeesQuery();
q.Select(q.EmployeeID, q.FirstName, q.LastName, q.Title);
if (request.sortCriteria != null && request.sortCriteria.Length > 0)
{
for (int i = 0; i < request.sortCriteria.Length; i++)
{
jsPagerSortCriteria sort = request.sortCriteria[i];
q.OrderBy(sort.column, sort.direction.ToUpper().StartsWith("A") ?
esOrderByDirection.Ascending : esOrderByDirection.Descending);
}
}
else
{
// Default sort if none is specified
q.OrderBy(q.EmployeeID.Ascending);
}
if (request.filterCriteria != null && request.filterCriteria.Length > 0)
{
esComparison comp = null;
for (int i = 0; i < request.filterCriteria.Length; i++)
{
jsPagerFilterCriteria filter = request.filterCriteria[i];
comp = q.ManualWhere(filter.column, filter.operation, filter.criteria1, filter.criteria2, filter.conjuction);
}
q.Where(comp);
}
// Set the paging indicators up
q.es.PageNumber = request.pageNumber;
q.es.PageSize = request.pageSize;
EmployeesCollection coll = new EmployeesCollection();
coll.Load(q);
response.pagerRequest.getTotalRows = false;
response.collection = coll;
}
catch (Exception ex)
{
response.exception = ex.Message;
}
return response;
}
private void btnDynamicQuery_Click(object sender, EventArgs e)
{
btnAdd.Enabled = false;
btnDelete.Enabled = false;
btnSave.Enabled = false;
EmployeesQuery eq = new EmployeesQuery("eq");
OrdersQuery oq = new OrdersQuery("oq");
eq.Select(eq.EmployeeID, eq.LastName, eq.FirstName, oq.OrderID, oq.ShipCity);
eq.InnerJoin(oq).On(eq.EmployeeID == oq.EmployeeID);
coll = new EmployeesCollection();
coll.Load(eq);
_bindingSource.DataSource = coll;
}