/// <summary>
/// Sets each <seealso cref="PropertyInfo"/> of the <paramref name="dbObject"/> to the value of
/// the <paramref name="record"/>, so long as the <seealso cref="PropertyInfo"/> is not the
/// primary key of the <paramref name="dbObject"/>.
/// </summary>
/// <typeparam name="T">Type of <seealso cref="DBObject"/></typeparam>
/// <param name="dbObject"><seealso cref="DBObject"/> to set <seealso cref="PropertyInfo"/> values for.</param>
/// <param name="record"><seealso cref="DbDataRecord"/> to read values from.</param>
private static void SetPropertyValuesFromRecord <T>(ref T dbObject, DbDataRecord record) where T : DBObject
{
for (int i = 0; i < record.FieldCount; i++)
{
if (record.GetName(i) != dbObject.PrimaryKeyPropertyInfo.Name)
{
dbObject.GetType().GetProperty(record.GetName(i)).SetValue(dbObject, record.GetValue(i));
}
}
}
/// <summary>Audit entity deleted.</summary>
/// <param name="entry">The entry.</param>
/// <param name="record">The record.</param>
/// <param name="prefix">The prefix.</param>
public static void AuditEntityDeleted(AuditEntry entry, ObjectStateEntry objectStateEntry, DbDataRecord record, string prefix = "")
{
for (var i = 0; i < record.FieldCount; i++)
{
var name = record.GetName(i);
var value = record.GetValue(i);
if (entry.Parent.Configuration.UseNullForDBNullValue && value == DBNull.Value)
{
value = null;
}
var valueRecord = value as DbDataRecord;
if (valueRecord != null)
{
// Complex Type
AuditEntityDeleted(entry, objectStateEntry, valueRecord, string.Concat(prefix, name, "."));
}
else if (objectStateEntry.EntityKey.EntityKeyValues.Any(x => x.Key == name) || entry.Parent.CurrentOrDefaultConfiguration.IsAuditedProperty(entry.Entry, string.Concat(prefix, name)))
{
var auditEntryProperty = entry.Parent.Configuration.AuditEntryPropertyFactory != null?
entry.Parent.Configuration.AuditEntryPropertyFactory(new AuditEntryPropertyArgs(entry, objectStateEntry, string.Concat(prefix, name), value, null)) :
new AuditEntryProperty();
auditEntryProperty.IsKey = objectStateEntry.EntitySet.ElementType.KeyMembers.Any(x => x.Name == name);
auditEntryProperty.Build(entry, string.Concat(prefix, name), value, null);
entry.Properties.Add(auditEntryProperty);
}
}
}
/// <summary>Audit entity modified.</summary>
/// <param name="audit">The audit to use to add changes made to the context.</param>
/// <param name="entry">The entry.</param>
/// <param name="objectStateEntry">The object state entry.</param>
/// <param name="orginalRecord">The orginal record.</param>
/// <param name="currentRecord">The current record.</param>
/// <param name="prefix">The prefix.</param>
public static void AuditEntityModified(Audit audit, AuditEntry entry, ObjectStateEntry objectStateEntry, DbDataRecord orginalRecord, DbUpdatableDataRecord currentRecord, string prefix = "")
{
for (var i = 0; i < orginalRecord.FieldCount; i++)
{
var name = orginalRecord.GetName(i);
var originalValue = orginalRecord.GetValue(i);
var currentValue = currentRecord.GetValue(i);
var valueRecord = originalValue as DbDataRecord;
if (valueRecord != null)
{
// Complex Type
AuditEntityModified(audit, entry, objectStateEntry, valueRecord, currentValue as DbUpdatableDataRecord, string.Concat(prefix, name, "."));
}
else if (objectStateEntry.EntityKey.EntityKeyValues.Any(x => x.Key == name) ||
entry.Parent.CurrentOrDefaultConfiguration.IsAuditedProperty(entry.Entry, name))
{
if (!audit.Configuration.IgnorePropertyUnchanged ||
objectStateEntry.EntityKey.EntityKeyValues.Any(x => x.Key == name) ||
!Equals(currentValue, originalValue))
{
var auditEntryProperty = entry.Parent.Configuration.AuditEntryPropertyFactory != null?
entry.Parent.Configuration.AuditEntryPropertyFactory(new AuditEntryPropertyArgs(entry, objectStateEntry, string.Concat(prefix, name), originalValue, currentValue)) :
new AuditEntryProperty();
auditEntryProperty.Build(entry, string.Concat(prefix, name), originalValue, currentValue);
entry.Properties.Add(auditEntryProperty);
}
}
}
}
private static IEnumerable <string> GetColumnNames(DbDataRecord record)
{
// Get all of the column names for this query
for (int i = 0; i < record.FieldCount; i++)
{
yield return(record.GetName(i));
}
}
static void TestProduct(string esqlQuery, Dictionary <string, object> parametes)
{
using (EntityConnection conn =
new EntityConnection("name=AdventureWorksEntities"))
{
conn.Open();
try
{
// Create an EntityCommand.
using (EntityCommand cmd = conn.CreateCommand())
{
cmd.CommandText = esqlQuery;
foreach (KeyValuePair <string, object> kvp in parametes)
{
cmd.Parameters.AddWithValue(kvp.Key, kvp.Value);
}
// Execute the command.
using (EntityDataReader rdr =
cmd.ExecuteReader(CommandBehavior.SequentialAccess))
{
// The result returned by this query contains
// Address complex Types.
while (rdr.Read())
{
int col = rdr.FieldCount;
if (rdr.FieldCount > 3)
{
col = 3;
}
for (int i = 0; i < col; i++)
{
Console.Write("{0} ", rdr[i]);
}
Console.WriteLine();
if (rdr.Depth > 0)
{
// Display Address information.
DbDataRecord nestedRecord =
rdr[0] as DbDataRecord;
for (int i = 0; i < nestedRecord.FieldCount; i++)
{
Console.WriteLine(" " + nestedRecord.GetName(i) +
": " + nestedRecord.GetValue(i));
}
}
}
}
}
}
catch (EntityException ex)
{
Console.WriteLine(ex.ToString());
}
conn.Close();
}
}
/// <summary>
/// Sets the primary key of a <seealso cref="DBObject"/> using the specified <paramref name="record"/>.
/// </summary>
/// <param name="record"><seealso cref="DbDataRecord"/> to get the primary key from.</param>
internal void SetPrimaryKey(DbDataRecord record)
{
for (int i = 0; i < record.FieldCount; i++)
{
if (record.GetName(i) == PrimaryKeyPropertyInfo.Name)
{
SetPrimaryKey((int)record.GetValue(i));
}
}
}
static private void ComplexTypeWithEntityCommand()
{
//<snippetComplexTypeWithEntityCommand>
using (EntityConnection conn =
new EntityConnection("name=CustomerComplexAddrContext"))
{
conn.Open();
// Create a query that returns Address complex type.
string esqlQuery =
@"SELECT VALUE customers FROM
CustomerComplexAddrContext.CCustomers
AS customers WHERE customers.CustomerId < 3";
try
{
// Create an EntityCommand.
using (EntityCommand cmd = conn.CreateCommand())
{
cmd.CommandText = esqlQuery;
// Execute the command.
using (EntityDataReader rdr =
cmd.ExecuteReader(CommandBehavior.SequentialAccess))
{
// The result returned by this query contains
// Address complex Types.
while (rdr.Read())
{
// Display CustomerID
Console.WriteLine("Customer ID: {0}",
rdr["CustomerId"]);
// Display Address information.
DbDataRecord nestedRecord =
rdr["Address"] as DbDataRecord;
Console.WriteLine("Address:");
for (int i = 0; i < nestedRecord.FieldCount; i++)
{
Console.WriteLine(" " + nestedRecord.GetName(i) +
": " + nestedRecord.GetValue(i));
}
}
}
}
}
catch (EntityException ex)
{
Console.WriteLine(ex.ToString());
}
conn.Close();
}
//</snippetComplexTypeWithEntityCommand>
}
/// <summary>
/// Converts a single DbDataRecord object into something else.
/// The destination type must have a default constructor.
/// </summary>
/// <typeparam name = "T"></typeparam>
/// <param name = "record"></param>
/// <returns></returns>
public static T ConvertTo <T>(this DbDataRecord record) where T : new()
{
var item = new T();
for (int f = 0; f < record.FieldCount; f++)
{
var p = item.GetType().GetProperty(record.GetName(f));
if (p != null && p.PropertyType == record.GetFieldType(f))
{
p.SetValue(item, record.GetValue(f), null);
}
}
return(item);
}
static public void ComplexTypeWithEntityCommand()
{
//<snippetComplexTypeWithEntityCommand>
using (EntityConnection conn =
new EntityConnection("name=AdventureWorksEntities"))
{
conn.Open();
string esqlQuery = @"SELECT VALUE contacts FROM
AdventureWorksEntities.Contacts AS contacts
WHERE contacts.ContactID == @id";
// Create an EntityCommand.
using (EntityCommand cmd = conn.CreateCommand())
{
cmd.CommandText = esqlQuery;
EntityParameter param = new EntityParameter();
param.ParameterName = "id";
param.Value = 3;
cmd.Parameters.Add(param);
// Execute the command.
using (EntityDataReader rdr =
cmd.ExecuteReader(CommandBehavior.SequentialAccess))
{
// The result returned by this query contains
// Address complex Types.
while (rdr.Read())
{
// Display CustomerID
Console.WriteLine("Contact ID: {0}",
rdr["ContactID"]);
// Display Address information.
DbDataRecord nestedRecord =
rdr["EmailPhoneComplexProperty"] as DbDataRecord;
Console.WriteLine("Email and Phone Info:");
for (int i = 0; i < nestedRecord.FieldCount; i++)
{
Console.WriteLine(" " + nestedRecord.GetName(i) +
": " + nestedRecord.GetValue(i));
}
}
}
}
conn.Close();
}
//</snippetComplexTypeWithEntityCommand>
}
private void DrawComplexType(TreeNode node, DbDataRecord originalValues, DbDataRecord currentValues)
{
for (int i = 0; i < originalValues.FieldCount; i++)
{
TreeNode childNode = new TreeNode(CreateNodeText(originalValues.GetName(i), false));
node.Nodes.Add(childNode);
if (_entry.OriginalValues[i] is DbDataRecord)
{
DrawComplexType(childNode, originalValues[i] as DbDataRecord, currentValues[i] as DbDataRecord);
}
else
{
DrawProperty(childNode, originalValues[i], currentValues[i]);
}
}
}
/// <summary>Audit entity deleted.</summary>
/// <param name="entry">The entry.</param>
/// <param name="record">The record.</param>
/// <param name="prefix">The prefix.</param>
public static void AuditEntityDeleted(AuditEntry entry, DbDataRecord record, string prefix = "")
{
for (var i = 0; i < record.FieldCount; i++)
{
var name = record.GetName(i);
var value = record.GetValue(i);
var valueRecord = value as DbDataRecord;
if (valueRecord != null)
{
// Complex Type
AuditEntityDeleted(entry, valueRecord, string.Concat(prefix, name, "."));
}
else if (entry.Parent.CurrentOrDefaultConfiguration.IsAuditedProperty(entry.Entry, name))
{
entry.Properties.Add(new AuditEntryProperty(entry, string.Concat(prefix, name), value, null));
}
}
}
internal IEnumerator <T> ExecuteReader <T>(string sql)
{
Type TypeT = typeof(T);
ConstructorInfo ctor = TypeT.GetConstructor(Type.EmptyTypes);
if (ctor == null)
{
throw new InvalidOperationException($"Type {TypeT.Name} does not have a default constructor.");
}
_sqlConnection.Open();
IEnumerator data = new SqlCommand(sql, _sqlConnection).ExecuteReader().GetEnumerator();
while (data.MoveNext())
{
T newInst = (T)ctor.Invoke(null);
DbDataRecord record = (DbDataRecord)data.Current;
int fieldCount = Properties.GetFieldCount((DbDataRecord)data.Current);
for (int i = 0; i < fieldCount; i++)
{
string propertyName = record.GetName(i);
PropertyInfo propertyInfo = TypeT.GetProperty(propertyName);
if (propertyInfo != null)
{
object value = record[i];
if (value == DBNull.Value)
{
propertyInfo.SetValue(newInst, null);
}
else
{
propertyInfo.SetValue(newInst, value);
}
}
}
yield return(newInst);
}
}
public static void AuditEntityModified(Audit audit, AuditEntry entry, DbDataRecord orginalRecord, DbUpdatableDataRecord currentRecord, string prefix = "")
{
for (var i = 0; i < orginalRecord.FieldCount; i++)
{
var name = orginalRecord.GetName(i);
var originalValue = orginalRecord.GetValue(i);
var currentValue = currentRecord.GetValue(i);
var valueRecord = originalValue as DbDataRecord;
if (valueRecord != null)
{
// Complex Type
AuditEntityModified(audit, entry, valueRecord, currentValue as DbUpdatableDataRecord, string.Concat(prefix, name, "."));
}
else
{
if (audit.Configuration.IncludePropertyUnchanged || !Equals(currentValue, originalValue))
{
entry.Properties.Add(new AuditEntryProperty(string.Concat(prefix, name), originalValue, currentValue));
}
}
}
}
/// <summary>
/// Map used to specify the type for more dynamic code.
/// </summary>
/// <param name="idr">DbDataRecord from DbDataReader</param>
/// <param name="type">Type of the object to be returned</param>
/// <returns>Returns instance of the specified type populated from the database.</returns>
internal static object Map(DbDataRecord idr, Type type)
{
object result = Activator.CreateInstance(type);
if (result == null)
{
throw new Exception(@"Unable to materialize the specified type.");
}
string[] columNames = new string[idr.FieldCount];
for (int col = 0; col < idr.FieldCount; col++)
{
if (idr.IsDBNull(col))
{
continue; /* Only map the columns that have values */
}
columNames[col] = idr.GetName(col).ToLower();
}
/* Use the extender to get the relevant properties */
ConcurrentBag <PropertyMap> mappings = new(result.GetMappings(columNames));
if (mappings.Count <= 0)
{
return(null);
}
foreach (PropertyMap pm in mappings)
{
PropertyInfo pi = pm.Key;
Column col = pm.Value;
string name = string.Equals(col.Name, pi.Name, StringComparison.CurrentCultureIgnoreCase) ? pi.Name : col.Name;
Type nullable = Nullable.GetUnderlyingType(pi.PropertyType);
if (idr[name] == DBNull.Value)
{
continue;
}
object value = idr[name];
if (nullable != null)
{
if (col.DataType == typeof(char?))
{
if (ReferenceEquals(value, ""))
{
continue;
}
}
pi.SetValue(result, Convert.ChangeType(value, nullable), null);
continue; /* Step to the next property */
}
if (pi.PropertyType.IsEnum)
{
pi.SetValue(result, Enum.ToObject(pi.PropertyType, value));
continue;
}
pi.SetValue(result, Convert.ChangeType(value, pi.PropertyType));
}
return(result);
}
public static StringCollection GetEnumerationItemFiledNames(object item, string fieldToExclude)
{
StringCollection stringCollection = new StringCollection();
if (item is DataRow)
{
foreach (DataColumn column in ((DataRow)item).Table.Columns)
{
if (column.ColumnName != fieldToExclude)
{
stringCollection.Add(column.ColumnName);
}
}
return(stringCollection);
}
if (item is DataRowView)
{
foreach (DataColumn column2 in ((DataRowView)item).DataView.Table.Columns)
{
if (column2.ColumnName != fieldToExclude)
{
stringCollection.Add(column2.ColumnName);
}
}
return(stringCollection);
}
if (item is DbDataRecord)
{
DbDataRecord dbDataRecord = (DbDataRecord)item;
for (int i = 0; i < dbDataRecord.FieldCount; i++)
{
string name = dbDataRecord.GetName(i);
if (name != fieldToExclude)
{
stringCollection.Add(name);
}
}
}
else if (item != null)
{
PropertyInfo[] properties = item.GetType().GetProperties(BindingFlags.Instance | BindingFlags.Public);
if (properties != null)
{
PropertyInfo[] array = properties;
foreach (PropertyInfo propertyInfo in array)
{
if (propertyInfo.Name != fieldToExclude)
{
stringCollection.Add(propertyInfo.Name);
}
}
}
FieldInfo[] fields = item.GetType().GetFields(BindingFlags.Instance | BindingFlags.Public);
if (fields != null)
{
FieldInfo[] array2 = fields;
foreach (FieldInfo fieldInfo in array2)
{
if (fieldInfo.Name != fieldToExclude)
{
stringCollection.Add(fieldInfo.Name);
}
}
}
}
return(stringCollection);
}
public void Write(object o)
{
if (o == null)
{
Write("null");
}
else if (o is DateTime)
{
Write("{");
Write(((DateTime)o).ToShortDateString());
Write("}");
}
else if (o is ValueType)
{
Write(o.ToString());
}
else if (o is Type)
{
Write(((Type)o).Name);
}
else if (o is Exception)
{
Write("EXCEPTION: " + o.ToString());
}
else if (o is byte[])
{
byte[] arr = (byte[])o;
int length = Math.Min(arr.Length, 32);
string t = "Byte[" + arr.Length + "] = " + BitConverter.ToString(arr, 0, length) + ((length != arr.Length) ? "..." : "");
Write(t);
}
else if (o is string)
{
Write("\"");
Write(o as string);
Write("\"");
}
else
{
if (o is ObjectCollectionCache)
{
Write(((ObjectCollectionCache)o).OriginalType);
}
else
{
Write(o.GetType());
}
Write(" ");
if (ancestors.Contains(o) || (Level > depth + 1))
{
Write("{...}");
}
else
{
ancestors.Push(o);
if (o is IEnumerable)
{
var members = from object element in (o as IEnumerable)
select new Member {
Name = null, Value = element
};
Write(members);
}
else if (o is DbDataRecord)
{
DbDataRecord rec = o as DbDataRecord;
var members = from element in Enumerable.Range(0, rec.FieldCount)
select new Member {
Name = rec.GetName(element), Value = rec.IsDBNull(element) ? null : rec.GetValue(element)
};
Write(members);
}
else
{
var members = from element in o.GetType().GetMembers(BindingFlags.Public | BindingFlags.Instance)
let p = element as PropertyInfo
let f = element as FieldInfo
where p != null || f != null && !element.Name.StartsWith("_")
select new Member {
Name = element.Name, Value = p != null?p.GetValue(o, null) : f.GetValue(o)
};
Write(members);
}
}
}
}
public void Write(object o)
{
if (o == null)
{
Write("null");
}
else if (o == _omittedValue)
{
Write("{...}");
}
else if (o is DateTime)
{
Write("{");
Write(((DateTime)o).ToString());
Write("}");
}
else if (o is ValueType)
{
Write(o.ToString());
}
else if (o is Type)
{
Write(((Type)o).Name);
}
else if (o is Exception)
{
Write("EXCEPTION: " + o.ToString());
}
else if (o is byte[])
{
byte[] arr = (byte[])o;
int length = Math.Min(arr.Length, 32);
string t = "Byte[" + arr.Length + "] = " + BitConverter.ToString(arr, 0, length) + ((length != arr.Length) ? "..." : "");
Write(t);
}
else if (o is string)
{
Write("\"");
Write(o as string);
Write("\"");
}
else
{
if (o is ObjectCollectionCache)
{
Write(((ObjectCollectionCache)o).OriginalType);
}
else
{
Write(o.GetType());
}
Write(" ");
if (_ancestors.Contains(o) || (Level > _maximumDepth + 1))
{
Write("{...}");
}
else
{
_ancestors.Push(o);
if (o is IEnumerable)
{
var members = from object element in (o as IEnumerable)
select new Member {
Name = null, Value = element
};
Write(members);
}
else if (o is DbDataRecord)
{
DbDataRecord rec = o as DbDataRecord;
var members = from element in Enumerable.Range(0, rec.FieldCount)
select new Member {
Name = rec.GetName(element), Value = rec.IsDBNull(element) ? null : rec.GetValue(element)
};
Write(members);
}
else
{
var members = from element in o.GetType().GetMembers(BindingFlags.Public | BindingFlags.Instance)
let p = element as PropertyInfo
let f = element as FieldInfo
where p != null || f != null
select new Member {
Name = element.Name, Value = p != null?p.GetValue(o, null) : f.GetValue(o)
};
// remove members which cause explosion of the tree
if (o is EntityReference)
{
members = members.Select(c => new Member {
Name = c.Name, Value = (c.Name == "RelationshipSet" ? _omittedValue : c.Value)
});
}
Write(members);
}
}
}
}
public TreeNode GetTreeNode(object o)
{
if (o == null)
{
return(GetNullNode());
}
if (o is Exception)
{
return(GetExceptionNode((Exception)o));
}
if (o is DateTime)
{
return(GetDateTimeNode((DateTime)o));
}
if (o is String)
{
return(GetStringNode((string)o));
}
if (o is Type)
{
return(GetTypeNode((Type)o));
}
if (o is byte[])
{
return(GetByteArrayNode((byte[])o));
}
if (o is ValueType)
{
return(GetValueTypeNode(o));
}
if (_ancestors.Contains(o) || _level >= _maxLoadDepth)
{
return(new TreeNode("{ ... }"));
}
TreeNode parentNode = new TreeNode(GetNiceTypeName(o.GetType()));
if (o is ObjectCollectionCache)
{
parentNode.Text = GetNiceTypeName(((ObjectCollectionCache)o).OriginalType);
}
_ancestors.Push(o);
int oldLevel = _level;
_level++;
if (o is IEnumerable)
{
parentNode.SelectedImageIndex = parentNode.ImageIndex = 4;
var members = (from object element in (o as IEnumerable)
select new Member {
Name = null, Value = element
}).ToList();
AttachChildren(parentNode, members);;
parentNode.Text += " (" + members.Count + " item" + (members.Count != 1 ? "s" : "") + ")";
}
else if (o is DbDataRecord)
{
parentNode.SelectedImageIndex = parentNode.ImageIndex = 2;
DbDataRecord rec = o as DbDataRecord;
var members = from element in Enumerable.Range(0, rec.FieldCount)
select new Member {
Name = rec.GetName(element), Value = rec.IsDBNull(element) ? null : rec.GetValue(element)
};
AttachChildren(parentNode, members);;
}
else
{
parentNode.SelectedImageIndex = parentNode.ImageIndex = 1;
var members = from element in o.GetType().GetMembers(BindingFlags.Public | BindingFlags.Instance)
let p = element as PropertyInfo
let f = element as FieldInfo
where p != null || f != null && !element.Name.StartsWith("_")
select new Member {
Name = element.Name, Value = p != null?p.GetValue(o, null) : f.GetValue(o)
};
AttachChildren(parentNode, members);;
IEntityWithKey ewk = o as IEntityWithKey;
if (ewk != null)
{
StringBuilder sb = new StringBuilder(parentNode.Text.Length + 20);
sb.Append(parentNode.Text);
sb.Append("(");
for (int i = 0; i < ewk.EntityKey.EntityKeyValues.Length; ++i)
{
if (i > 0)
{
sb.Append(", ");
}
sb.Append(ewk.EntityKey.EntityKeyValues[i].Key);
sb.Append("=");
sb.Append(ewk.EntityKey.EntityKeyValues[i].Value);
}
sb.Append(")");
parentNode.Text = sb.ToString();
}
}
if (_level <= _expandDepth)
{
parentNode.Expand();
}
_ancestors.Pop();
_level = oldLevel;
return(parentNode);
}
public TreeNode GetTreeNode(object o)
{
if (o == null)
{
return(GetNullNode());
}
if (o == _omittedValue)
{
return(new TreeNode("{ ... }"));
}
if (o is Exception)
{
return(GetExceptionNode((Exception)o));
}
if (o is DateTime)
{
return(GetDateTimeNode((DateTime)o));
}
if (o is String)
{
return(GetStringNode((string)o));
}
if (o is Type)
{
return(GetTypeNode((Type)o));
}
if (o is byte[])
{
return(GetByteArrayNode((byte[])o));
}
if (o is ValueType)
{
return(GetValueTypeNode(o));
}
if (_ancestors.Contains(o) || _level >= _maxLoadDepth)
{
return(new TreeNode("{ ... }"));
}
TreeNode parentNode = new TreeNode(GetNiceTypeName(o.GetType()));
if (o is ObjectCollectionCache)
{
parentNode.Text = GetNiceTypeName(((ObjectCollectionCache)o).OriginalType);
}
_ancestors.Push(o);
int oldLevel = _level;
_level++;
if (o is IEnumerable)
{
parentNode.SelectedImageIndex = parentNode.ImageIndex = 4;
var members = (from object element in (o as IEnumerable)
select new Member {
Name = null, Value = element
}).ToList();
AttachChildren(parentNode, members);;
parentNode.Text += " (" + members.Count + " item" + (members.Count != 1 ? "s" : "") + ")";
}
else if (o is DbDataRecord)
{
parentNode.SelectedImageIndex = parentNode.ImageIndex = 2;
DbDataRecord rec = o as DbDataRecord;
var members = from element in Enumerable.Range(0, rec.FieldCount)
select new Member {
Name = rec.GetName(element), Value = rec.IsDBNull(element) ? null : rec.GetValue(element)
};
AttachChildren(parentNode, members);;
}
else
{
parentNode.SelectedImageIndex = parentNode.ImageIndex = 1;
var members = from element in o.GetType().GetMembers(BindingFlags.Public | BindingFlags.Instance)
let p = element as PropertyInfo
let f = element as FieldInfo
where p != null || f != null
select new Member {
Name = element.Name, Value = p != null?p.GetValue(o, null) : f.GetValue(o)
};
// replace members who would lead to tree explosion with _omittedValue
// which emits { ... }
if (o is EntityReference)
{
members = members.Select(c => new Member {
Name = c.Name, Value = (c.Name == "RelationshipSet" ? _omittedValue : c.Value)
});
}
AttachChildren(parentNode, members);;
IEntityWithKey ewk = o as IEntityWithKey;
if (ewk != null)
{
parentNode.Text += " { " + GetEntityKeyText(ewk.EntityKey) + " }";
}
}
if (_level <= _expandDepth)
{
parentNode.Expand();
}
_ancestors.Pop();
_level = oldLevel;
return(parentNode);
}
