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//
// System.Data.Common.DataColumnMappingCollection
//
// Authors:
// Rodrigo Moya (rodrigo@ximian.com)
// Tim Coleman (tim@timcoleman.com)
//
// (C) Ximian, Inc
// Copyright (C) Tim Coleman, 2002
//
using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
namespace System.Data.Common {
public sealed class DataColumnMappingCollection : MarshalByRefObject, IColumnMappingCollection , IList, ICollection, IEnumerable
{
#region Fields
ArrayList list;
Hashtable sourceColumns;
Hashtable dataSetColumns;
#endregion // Fields
#region Constructors
public DataColumnMappingCollection ()
{
list = new ArrayList ();
sourceColumns = new Hashtable ();
dataSetColumns = new Hashtable ();
}
#endregion // Constructors
#region Properties
[Browsable (false)]
[DataSysDescription ("The number of items in the collection")]
[DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
public int Count {
get { return list.Count; }
}
[Browsable (false)]
[DataSysDescription ("The specified DataColumnMapping object.")]
public DataColumnMapping this [int index] {
get { return (DataColumnMapping)(list[index]); }
set {
DataColumnMapping mapping = (DataColumnMapping)(list[index]);
sourceColumns[mapping] = value;
dataSetColumns[mapping] = value;
list[index] = value;
}
}
public DataColumnMapping this [string sourceColumn] {
get {
if (!Contains(sourceColumn)) {
throw new IndexOutOfRangeException("DataColumnMappingCollection doesn't contains DataColumnMapping with SourceColumn 'field_int2'.");
}
return (DataColumnMapping) sourceColumns[sourceColumn]; }
set { this [list.IndexOf (sourceColumns[sourceColumn])] = value; }
}
object ICollection.SyncRoot {
get { return list.SyncRoot; }
}
bool ICollection.IsSynchronized {
get { return list.IsSynchronized; }
}
object IColumnMappingCollection.this [string sourceColumn] {
get { return this [sourceColumn]; }
set {
if (!(value is DataColumnMapping))
throw new ArgumentException ();
this [sourceColumn] = (DataColumnMapping) value;
}
}
object IList.this [int index] {
get { return this[index]; }
set {
if (!(value is DataColumnMapping))
throw new ArgumentException ();
this [index] = (DataColumnMapping) value;
}
}
bool IList.IsReadOnly {
get { return false; }
}
bool IList.IsFixedSize {
get { return false; }
}
#endregion // Properties
#region Methods
public int Add (object value)
{
if (!(value is DataColumnMapping))
throw new InvalidCastException ();
list.Add (value);
sourceColumns[((DataColumnMapping)value).SourceColumn] = value;
dataSetColumns[((DataColumnMapping)value).DataSetColumn] = value;
return list.IndexOf (value);
}
public DataColumnMapping Add (string sourceColumn, string dataSetColumn)
{
DataColumnMapping mapping = new DataColumnMapping (sourceColumn, dataSetColumn);
Add (mapping);
return mapping;
}
public void AddRange (DataColumnMapping[] values)
{
foreach (DataColumnMapping mapping in values)
Add (mapping);
}
public void Clear ()
{
list.Clear ();
}
public bool Contains (object value)
{
return (list.Contains (value));
}
public bool Contains (string value)
{
return (sourceColumns.Contains (value));
}
public void CopyTo (Array array, int index)
{
((DataColumn[])(list.ToArray())).CopyTo (array, index);
}
public DataColumnMapping GetByDataSetColumn (string value)
{
return (DataColumnMapping)(dataSetColumns[value]);
}
[EditorBrowsable (EditorBrowsableState.Advanced)]
public static DataColumnMapping GetColumnMappingBySchemaAction (DataColumnMappingCollection columnMappings, string sourceColumn, MissingMappingAction mappingAction)
{
if (columnMappings.Contains (sourceColumn))
return columnMappings[sourceColumn];
if (mappingAction == MissingMappingAction.Ignore)
return null;
if (mappingAction == MissingMappingAction.Error)
throw new InvalidOperationException (String.Format ("Missing SourceColumn mapping for '{0}'", sourceColumn));
return new DataColumnMapping (sourceColumn, sourceColumn);
}
public IEnumerator GetEnumerator ()
{
return list.GetEnumerator ();
}
IColumnMapping IColumnMappingCollection.Add (string sourceColumnName, string dataSetColumnName)
{
return Add (sourceColumnName, dataSetColumnName);
}
IColumnMapping IColumnMappingCollection.GetByDataSetColumn (string dataSetColumnName)
{
return GetByDataSetColumn (dataSetColumnName);
}
public int IndexOf (object value)
{
return list.IndexOf (value);
}
public int IndexOf (string sourceColumn)
{
return list.IndexOf (sourceColumns[sourceColumn]);
}
public int IndexOfDataSetColumn (string value)
{
return list.IndexOf (dataSetColumns[value]);
}
public void Insert (int index, object value)
{
list.Insert (index, value);
sourceColumns[((DataColumnMapping)value).SourceColumn] = value;
dataSetColumns[((DataColumnMapping)value).DataSetColumn] = value;
}
public void Remove (object value)
{
sourceColumns.Remove(((DataColumnMapping)value).SourceColumn);
dataSetColumns.Remove(((DataColumnMapping)value).DataSetColumn);
list.Remove (value);
}
public void RemoveAt (int index)
{
Remove (list[index]);
}
public void RemoveAt (string sourceColumn)
{
RemoveAt (list.IndexOf (sourceColumns[sourceColumn]));
}
#endregion // Methods
}
}
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