Covert Collection of Objects to Collection of Dictionary<string, object> - c

Question

I'm fetching a large Amount of data from RIA Service. the return type have group of objects like RouteA, HistroyRouteA. HistroyLogRouteA all have records for different years with same Unique Key.
I have to Bind this data dynamically to a RadGridView. Always I have unknown columns in result.
For this I followed
http://blogs.telerik.com/vladimirenchev/posts/11-09-28/dynamic-binding-for-your-silverlight-applications.aspx
http://www.telerik.com/forums/rowdetailstemplate-binding-with-dynamic-data
And build My data Collection with Code :
private void OnShowPreviousYear(object parameter)
{
GridViewHeaderCell cell = parameter as GridViewHeaderCell;
var head = cell.Column.Header;
this.context.Load<Route>(this.context.GetRoutesQuery(), LoadBehavior.MergeIntoCurrent, OnRouteHistoryLoadComplete, null);
}
private void OnRouteHistoryLoadComplete(LoadOperation<Route> lo)
{
object ro = null;
if (lo.Entities != null)
{
this.context.Load<Routeshistory>(this.context.GetRouteshistoriesQuery(), LoadBehavior.MergeIntoCurrent, (lp) =>
{
Route recent = lo.Entities.FirstOrDefault();
int year =(int)recent.Hpmsyear-1;
var rows = this.context.Routes.Join(this.context.Routeshistories,
r => r.Routeid.ToString(),
h => h.Routeid.ToString(),
(r, h) => new { r, h });//.Where(t => t.r.Routeid == t.h.Routeid );
RoutesGridData = new ObservableCollection<DataRow>();
int count = 0;
foreach (var tmpR in rows)
{
//Debug.WriteLine(tmpR.r.Routeid + " -- " + tmpR.h.Routeid);
if (count < 50)
{
DataRow row = new DataRow();
if (tmpR.r is Route)
{
Type type = tmpR.r.GetType();
foreach (PropertyInfo info in type.GetProperties())
{
// Debug.WriteLine(info.Name + "--- NAME OF PRR");
var val = info.GetValue(tmpR.r, null);
if (!info.Name.Equals("EntityConflict")
&& !info.Name.Equals("ValidationErrors")
&& !info.Name.Equals("HasValidationErrors")
&& !info.Name.Equals("EntityState")
&& !info.Name.Equals("HasChanges")
&& !info.Name.Equals("IsReadOnly")
&& !info.Name.Equals("EntityActions"))
{
row[info.Name] = val;
}
}
}
// other tables...
RoutesGridData.Add(row);
}
count++;
}
}, null);
}
// var b = ro;
}
this code works fine for small record like 50 rows. but I when It try to convert all data it become slow. and screen crashes. I think this is because of Reflection. Is there any other way to convert my fetch data into Dictionary? Means I can map my table to dictionary in Entity Framework or Linq can do this for me without getting my code slow etc.
My Entities are mapped with EF 6 & I m using Deart oracle connector.

Answer 1

Due to reflection it was getting extremely slow so I did in during Linq query it's working for a while what data I have with me.
var rowss = this.context.Routes.Join(this.context.Routeshistories,
r => r.Routeid,
h => h.Routeid,
(r, h) => new DataRow(
(from x in r.GetType().GetProperties() select x).Where(x => x.Name != "EntityConflict"
&& x.Name != "ValidationErrors"
&& x.Name != "HasValidationErrors"
&& x.Name != "HasChanges"
&& x.Name != "EntityState"
&& x.Name != "IsReadOnly"
&& x.Name != "EntityActions")
.ToDictionary(x => x.Name, x => (x.GetGetMethod().Invoke(r, null) == null ? "" : x.GetGetMethod().Invoke(r, null))),
(from x in h.GetType().GetProperties() select x).Where(x => x.Name == head)
.ToDictionary(x => x.Name + "-" + year.ToString(), x => (x.GetGetMethod().Invoke(h, null) == null ? "" : x.GetGetMethod().Invoke(h, null))))
);// , new EqualityComparerString()
RoutesGridData = new ObservableCollection<DataRow>(rowss);