bool IEnumerator.MoveNext()
{
bool moved = false;
while (true)
{
if (enumerator.MoveNext())
{
IEnumerator e = this as IEnumerator;
tgEntity obj = e.Current as tgEntity;
if (obj.rowState != tgDataRowState.Deleted)
{
moved = true;
break;
}
}
else
{
break;
}
}
return(moved);
}
private SortedList GetSortedListOfProperties(tgEntity entity, tgEntityCollectionBase baseCollection)
{
SortedList list = new SortedList();
tgEntityCollectionBase theBaseCollection = baseCollection != null ? baseCollection : entity.Collection;
if (theBaseCollection != null)
{
if (theBaseCollection.selectedColumns != null)
{
foreach (KeyValuePair <string, int> selectedColumn in theBaseCollection.selectedColumns)
{
list.Add(selectedColumn.Value, selectedColumn.Key);
}
}
if (theBaseCollection.extraColumnMetadata != null)
{
foreach (KeyValuePair <string, tgColumnMetadata> extraColumn in theBaseCollection.extraColumnMetadata)
{
list.Add(extraColumn.Value.Ordinal, extraColumn.Key);
}
}
}
return(list);
}
void IList.Remove(object value)
{
#if (TRACE)
Console.WriteLine("void IList.Remove(object value)");
#endif
tgEntity entity = value as tgEntity;
entities.Remove((T)entity);
if (entity.RowState != tgDataRowState.Deleted && entity.RowState != tgDataRowState.Added)
{
entity.MarkAsDeleted();
}
if (entitiesFilterBackup != null)
{
IList i = entitiesFilterBackup as IList;
i.Remove(entity);
}
if (updateViewNotification != null)
{
OnUpdateViewNotification(this, ListChangedType.ItemDeleted, entity);
}
}
public override void SetValue(object component, object value)
{
tgEntity obj = component as tgEntity;
if (obj == null)
{
return;
}
if (_trueDescriptor != null)
{
_trueDescriptor.SetValue(component, value);
}
else
{
if (obj != null)
{
if (m_setDelegate != null)
{
m_setDelegate(obj, value);
}
else
{
obj.currentValues[this.Name] = value;
obj.OnPropertyChanged(this.Name);
}
}
}
}
public override object GetValue(object component)
{
tgEntity obj = component as tgEntity;
if (obj == null)
{
return(null);
}
if (_trueDescriptor != null)
{
return(this._trueDescriptor.GetValue(component));
}
else
{
object o = null;
if (m_getDelegate != null)
{
o = m_getDelegate(component);
}
else
{
obj.currentValues.TryGetValue(this.Name, out o);
}
return(o);
}
}
public tgPropertyDescriptor(tgEntity entity, string name, Type propertyType, tgEntity containedEntity)
: base(name, null)
{
this._entity = entity;
this.m_propertyType = propertyType;
this._containedEntity = containedEntity;
}
int IComparer <T> .Compare(T obj1, T obj2)
{
tgEntity obj = obj1 as tgEntity;
tgColumnMetadata esColumn = obj.tg.Meta.Columns.FindByPropertyName(sortProperty.Name);
return(obj1.OnSort(obj2, esColumn, sortProperty.Name));
}
protected void SetConnection(tgEntity entity)
{
if (!String.IsNullOrWhiteSpace(_connectionName))
{
entity.tg.Connection.Name = _connectionName;
}
}
public tgPropertyDescriptor(tgEntity entity, string name, Type propertyType, tgEntity containedEntity)
: base(name, null)
{
this._entity = entity;
this.m_propertyType = propertyType;
this._containedEntity = containedEntity;
}
static public jsColumn[] PopulateColumns(tgEntity entity)
{
List <jsColumn> cols = new List <jsColumn>();
// we just put some fake data in the footer section for the demo
decimal footer = 100M;
List <string> columns = entity.GetCurrentListOfColumns();
foreach (string column in columns)
{
tgColumnMetadata esCol = entity.tg.Meta.Columns.FindByColumnName(column);
jsColumn c = new jsColumn();
footer += 2M;
if (esCol != null)
{
c.isVisible = true;
c.displayName = esCol.PropertyName;
c.dataType = esCol.Type.ToString();
c.columnName = esCol.Name;
c.propertyName = esCol.PropertyName;
c.ordinal = esCol.Ordinal;
c.numericPrecision = esCol.NumericPrecision;
c.numericScale = esCol.NumericScale;
c.characterMaxLength = esCol.CharacterMaxLength;
c.defaultValue = esCol.Default;
c.hasDefault = esCol.HasDefault;
c.isInPrimaryKey = esCol.IsInPrimaryKey;
c.isAutoIncrement = esCol.IsAutoIncrement;
c.isNullable = esCol.IsNullable;
c.isConcurrency = esCol.IsConcurrency || esCol.IsTiraggoConcurrency;
c.isSortable = true;
c.footerValue = "$" + Convert.ToString(footer);
}
else
{
object o = entity.GetColumn(column);
if (o != DBNull.Value && o != null)
{
c.dataType = o.GetType().ToString();
}
c.isVisible = true;
c.displayName = column;
c.columnName = column;
c.propertyName = column;
c.isSortable = false;
c.footerValue = "$" + Convert.ToString(footer);
}
cols.Add(c);
}
return(cols.ToArray());
}
public static jsColumn[] PopulateColumns(tgEntity entity)
{
List<jsColumn> cols = new List<jsColumn>();
// we just put some fake data in the footer section for the demo
decimal footer = 100M;
List<string> columns = entity.GetCurrentListOfColumns();
foreach (string column in columns)
{
tgColumnMetadata esCol = entity.tg.Meta.Columns.FindByColumnName(column);
jsColumn c = new jsColumn();
footer += 2M;
if (esCol != null)
{
c.isVisible = true;
c.displayName = esCol.PropertyName;
c.dataType = esCol.Type.ToString();
c.columnName = esCol.Name;
c.propertyName = esCol.PropertyName;
c.ordinal = esCol.Ordinal;
c.numericPrecision = esCol.NumericPrecision;
c.numericScale = esCol.NumericScale;
c.characterMaxLength = esCol.CharacterMaxLength;
c.defaultValue = esCol.Default;
c.hasDefault = esCol.HasDefault;
c.isInPrimaryKey = esCol.IsInPrimaryKey;
c.isAutoIncrement = esCol.IsAutoIncrement;
c.isNullable = esCol.IsNullable;
c.isConcurrency = esCol.IsConcurrency || esCol.IsEntitySpacesConcurrency;
c.isSortable = true;
c.footerValue = "$" + Convert.ToString(footer);
}
else
{
object o = entity.GetColumn(column);
if (o != DBNull.Value && o != null)
{
c.dataType = o.GetType().ToString();
}
c.isVisible = true;
c.displayName = column;
c.columnName = column;
c.propertyName = column;
c.isSortable = false;
c.footerValue = "$" + Convert.ToString(footer);
}
cols.Add(c);
}
return cols.ToArray();
}
void IList.Remove(object value)
{
#if (TRACE)
Console.WriteLine("void IList.Remove(object value)");
#endif
tgEntity entity = value as tgEntity;
entities.Remove((T)entity);
entity.MarkAsDeleted();
if (entitiesFilterBackup != null)
{
IList i = entitiesFilterBackup as IList;
i.Remove(entity);
}
}
void IList.RemoveAt(int index)
{
#if (TRACE)
Console.WriteLine("void IList.RemoveAt(int index)");
#endif
tgEntity entity = ((IList)entities)[index] as tgEntity;
entities.Remove((T)entity);
entity.MarkAsDeleted();
if (entitiesFilterBackup != null)
{
IList i = entitiesFilterBackup as IList;
i.Remove(entity);
}
}
void IList.RemoveAt(int index)
{
#if (TRACE)
Console.WriteLine("void IList.RemoveAt(int index)");
#endif
tgEntity entity = ((IList)entities)[index] as tgEntity;
entities.Remove((T)entity);
entity.MarkAsDeleted();
if (entitiesFilterBackup != null)
{
IList i = entitiesFilterBackup as IList;
i.Remove(entity);
}
if (updateViewNotification != null)
{
OnUpdateViewNotification(this, ListChangedType.ItemDeleted, entity);
}
}
bool ICollection <T> .Remove(T item)
{
#if (TRACE)
Console.WriteLine("bool ICollection<T>.Remove(T item)");
#endif
tgEntity entity = item as tgEntity;
IList list = this as IList;
bool removed = list.Contains(item);
entities.Remove((T)entity);
entity.MarkAsDeleted();
if (entitiesFilterBackup != null)
{
IList i = entitiesFilterBackup as IList;
i.Remove(entity);
}
return(removed);
}
bool ICollection <T> .Remove(T item)
{
#if (TRACE)
Console.WriteLine("bool ICollection<T>.Remove(T item)");
#endif
tgEntity entity = item as tgEntity;
bool removed = entities.Remove((T)entity);
entity.MarkAsDeleted();
if (entitiesFilterBackup != null)
{
IList i = entitiesFilterBackup as IList;
i.Remove(entity);
}
if (updateViewNotification != null)
{
OnUpdateViewNotification(this, ListChangedType.ItemDeleted, entity);
}
return(removed);
}
virtual internal PropertyDescriptorCollection GetProperties(tgEntity entity, tgEntityCollectionBase baseCollection)
{
return(null);
}
public void OnUpdateViewEventHandler(object sender, ListChangedType changeType, tgEntity entity)
{
bool orginal = this.entities.RaiseListChangedEvents;
this.entities.RaiseListChangedEvents = collection.RaiseListChangeEventsEnabled;
switch (changeType)
{
case ListChangedType.ItemDeleted:
{
IList coll = this as IList;
coll.Remove(entity);
if (entitiesFilterBackup != null)
{
IBindingList i = entitiesFilterBackup as IBindingList;
i.Remove(entity);
}
}
break;
case ListChangedType.ItemAdded:
{
IList coll = this as IList;
coll.Add(entity);
if (entitiesFilterBackup != null)
{
IBindingList i = entitiesFilterBackup as IBindingList;
i.Add(entity);
}
}
break;
case ListChangedType.Reset:
{
entities.Clear();
// We want to initially populate from the original list if there is an ongoing filer ..
BindingList <T> list = (collection.entitiesFilterBackup == null) ? baseEntityList : collection.entitiesFilterBackup;
foreach (T obj in list)
{
entities.Add(obj);
}
if (entitiesFilterBackup != null)
{
entitiesFilterBackup = null;
}
}
break;
}
this.entities.RaiseListChangedEvents = orginal;
}
public tgPropertyDescriptor(tgEntity entity, string name, Type propertyType)
: base(name, null)
{
this._entity = entity;
this.m_propertyType = propertyType;
}
PropertyDescriptorCollection ITypedList.GetItemProperties(PropertyDescriptor[] listAccessors)
{
// We are binding so we turn this on ...
entities.RaiseListChangedEvents = true;
PropertyDescriptorCollection props = null;
Type type = null;
if (listAccessors == null || listAccessors.Length == 0)
{
tgEntity e = null;
// It wants "this" object and so we can use this technique
if (this.Count > 0)
{
e = entities[0] as tgEntity;
}
else
{
e = new T();
}
type = e.GetType();
//------------------------------------
// Check to see if it's in the cached
//------------------------------------
if (this.BindingPropertyCache.ContainsKey(type))
{
return(this.BindingPropertyCache[type]);
}
props = this.GetProperties(e, this);
this.BindingPropertyCache[type] = props;
}
else
{
if (this.EnableHierarchicalBinding == false)
{
return(null);
}
// We should not enter this else statement if hierarchical binding is false
PropertyDescriptor prop = listAccessors[listAccessors.Length - 1];
//------------------------------------
// Check to see if it's in the cached
//------------------------------------
if (this.BindingPropertyCache.ContainsKey(prop.PropertyType))
{
return(this.BindingPropertyCache[prop.PropertyType]);
}
tgPropertyDescriptor esProp = prop as tgPropertyDescriptor;
if (esProp != null)
{
// Nope, not in the cache, let's get the info
props = this.GetProperties(esProp.ContainedEntity, null);
}
else
{
// I give up, go get the raw properties
props = TypeDescriptor.GetProperties(prop.PropertyType);
}
this.BindingPropertyCache[prop.PropertyType] = props;
}
return(props);
}
internal override PropertyDescriptorCollection GetProperties(tgEntity entity, tgEntityCollectionBase baseCollection)
{
bool weHaveData = false;
int lastOrdinal = 0;
tgColumnMetadataCollection esMetaCols = entity.tg.Meta.Columns;
tgEntityCollectionBase theBaseCollection = baseCollection != null ? baseCollection : entity.Collection;
bool enableHierarchcialBinding = theBaseCollection != null ? theBaseCollection.EnableHierarchicalBinding : true;
if (theBaseCollection != null)
{
if (theBaseCollection.GetList() != null)
{
// Do we have any entities?
weHaveData = theBaseCollection.GetList().Count > 0;
if (weHaveData == false)
{
// If selectedColumns has data then they attempted a load and we know the columns based on thier select statement
weHaveData = theBaseCollection.selectedColumns != null && theBaseCollection.selectedColumns.Keys.Count > 0;
}
}
}
//------------------------------------------------------------
// First we deal with Properties from the DataTable.Columns
// or from the tgColumnMetadataCollection.
//------------------------------------------------------------
ArrayList collNested = new ArrayList();
SortedList <int, PropertyDescriptor> coll = new SortedList <int, PropertyDescriptor>();
PropertyDescriptorCollection props = TypeDescriptor.GetProperties(entity, true);
// Note, we check for selectedColumns because we might be a deserialized collection in which
// case there will not be any selectedColumns
if (weHaveData && theBaseCollection.selectedColumns != null)
{
SortedList list = GetSortedListOfProperties(entity, baseCollection);
for (int i = 0; i < list.Count; i++)
{
string column = (string)list.GetByIndex(i);
if (column == "ESRN")
{
continue;
}
tgColumnMetadata esCol = entity.tg.Meta.Columns.FindByColumnName(column);
if (esCol != null)
{
PropertyDescriptor prop = props[esCol.PropertyName];
if (prop != null)
{
coll.Add(lastOrdinal++, prop);
}
}
else
{
esCol = theBaseCollection.extraColumnMetadata[column];
if (esCol != null)
{
// Extra or Extended Properties
tgPropertyDescriptor dpd = new tgPropertyDescriptor
(
typeof(T),
column,
esCol != null ? esCol.Type : typeof(string),
delegate(object p)
{
return(((tgEntity)p).currentValues[column]);
},
delegate(object p, object data)
{
((tgEntity)p).currentValues[column] = data;
((tgEntity)p).OnPropertyChanged(column);
}
);
coll.Add(lastOrdinal++, dpd);
}
}
}
}
else
{
foreach (tgColumnMetadata esCol in esMetaCols)
{
coll.Add(lastOrdinal++, props[esCol.PropertyName]);
}
}
//------------------------------------------------------------
// Now we deal with extended properties that are using the
// esExtendedPropertyAttribute technique
//------------------------------------------------------------
foreach (PropertyDescriptor prop in props)
{
if (prop.Attributes.Contains(tgEntityCollection <T> .extendedPropertyAttribute))
{
coll.Add(lastOrdinal++, prop);
}
}
//------------------------------------------------------------
// Now we deal with any local properties. Local properties are
// properties that users may want to bind with that are
// NOT backed by data in the DataTable
//------------------------------------------------------------
List <tgPropertyDescriptor> localProps = entity.GetLocalBindingProperties();
if (localProps != null)
{
foreach (tgPropertyDescriptor esProp in localProps)
{
// We check this incase they add a local based property for a DataColumn
// based property, they would do this so it appears in design time, and
// we don't want to add a duplicate
bool exists = coll.ContainsValue(props[esProp.Name]);
if (!exists)
{
if (props[esProp.Name] != null)
{
coll.Add(lastOrdinal++, props[esProp.Name]);
}
else
{
coll.Add(lastOrdinal++, esProp);
}
}
}
}
ArrayList tempColl = new ArrayList();
if (enableHierarchcialBinding)
{
List <tgPropertyDescriptor> hierProps = entity.GetHierarchicalProperties();
if (hierProps != null)
{
foreach (tgPropertyDescriptor esProp in hierProps)
{
esProp.TrueDescriptor = props[esProp.Name];
// coll.Add(lastOrdinal++, esProp);
tempColl.Add(esProp);
}
}
}
// Create the collection
foreach (PropertyDescriptor p in coll.Values)
{
tempColl.Add(p);
}
tempColl.AddRange(collNested);
PropertyDescriptorCollection theProps =
new PropertyDescriptorCollection((PropertyDescriptor[])tempColl.ToArray(typeof(PropertyDescriptor)));
return(theProps);
}
internal virtual void RemoveEntity(tgEntity entity)
{
}
public tgPropertyDescriptor(tgEntity entity, string name, Type propertyType)
: base(name, null)
{
this._entity = entity;
this.m_propertyType = propertyType;
}
internal virtual void OnUpdateViewNotification(object sender, ListChangedType changeType, tgEntity obj)
{
}
internal virtual void AddEntityToDeletedList(tgEntity entity)
{
}
internal virtual PropertyDescriptorCollection GetProperties(tgEntity entity, tgEntityCollectionBase baseCollection)
{
return null;
}
virtual internal void AddEntityToDeletedList(tgEntity entity)
{
}
internal virtual void RemoveEntity(tgEntity entity)
{
}
virtual internal void OnUpdateViewNotification(object sender, ListChangedType changeType, tgEntity obj)
{
}
