private static void UpdateColumnsForeignKeyConfigurationsFromFieldDescriptors(
Dictionary <string, ColumnBase> columns,
Dictionary <string, ItemsSourceHelper.FieldDescriptor> fieldDescriptors,
bool autoCreateForeignKeyConfigurations)
{
if (columns == null)
{
return;
}
if (fieldDescriptors == null)
{
return;
}
foreach (ItemsSourceHelper.FieldDescriptor fieldDescriptor in fieldDescriptors.Values)
{
DataGridForeignKeyDescription description = fieldDescriptor.ForeignKeyDescription;
if (description == null)
{
continue;
}
ColumnBase column;
columns.TryGetValue(fieldDescriptor.Name, out column);
ForeignKeyConfiguration.SynchronizeForeignKeyConfigurationFromForeignKeyDescription(
column as Column,
description,
autoCreateForeignKeyConfigurations);
}
}
// If a DataGridCollectionViewBase is used, get the ItemProperties it defines
// to be able to retreive DataGridForeignKeyDescription for each of them
// to get the auto-detected ForeignKey ItemsSource (if any).
// If a DataGridCollectionViewBase is not used, the ItemsSource must be
// manually specified on each Column in order to correctly display/edit the Data
internal static void UpdateColumnsForeignKeyConfigurationsFromDataGridCollectionView(
Dictionary <string, ColumnBase> columns,
DataGridItemPropertyCollection itemProperties,
bool autoCreateForeignKeyConfigurations)
{
if (itemProperties == null)
{
return;
}
foreach (DataGridItemPropertyBase itemProperty in itemProperties)
{
DataGridForeignKeyDescription description = itemProperty.ForeignKeyDescription;
if (description == null)
{
continue;
}
ColumnBase column;
columns.TryGetValue(itemProperty.Name, out column);
ForeignKeyConfiguration.SynchronizeForeignKeyConfigurationFromForeignKeyDescription(
column as Column,
description,
autoCreateForeignKeyConfigurations);
}
}
internal void SetForeignKeyDescription(DataGridForeignKeyDescription description)
{
if (m_foreignKeyDescription != description)
{
m_foreignKeyDescription = description;
this.OnPropertyChanged(DataGridItemPropertyBase.ForeignKeyDescriptionPropertyName);
}
}
internal void SetForeignKeyDescription(DataGridForeignKeyDescription description)
{
if (m_foreignKeyDescription != description)
{
m_foreignKeyDescription = description;
this.OnPropertyChanged("ForeignKeyDescription");
}
}
private IEnumerable m_itemsSource; // = null;
private static void OnItemsSourceChanged(DependencyObject sender, DependencyPropertyChangedEventArgs e)
{
DataGridForeignKeyDescription foreignKeyDescription = sender as DataGridForeignKeyDescription;
if (foreignKeyDescription != null)
{
foreignKeyDescription.m_itemsSource = e.NewValue as IEnumerable;
}
}
public SortInfo(DataGridForeignKeyDescription foreignKeyDescription, ListSortDirection sortDirection, IComparer sortComparer)
{
if (sortComparer == null)
{
throw new ArgumentNullException("sortComparer");
}
this.ForeignKeyDescription = foreignKeyDescription;
this.SortDirection = sortDirection;
this.SortComparer = sortComparer;
}
internal static void SynchronizeForeignKeyConfigurationFromForeignKeyDescription(
Column column,
DataGridForeignKeyDescription description,
bool autoCreateForeignKeyConfigurations)
{
if ((description == null) || (column == null))
{
return;
}
var configuration = column.ForeignKeyConfiguration;
if (configuration == null)
{
if (!autoCreateForeignKeyConfigurations)
{
return;
}
configuration = new ForeignKeyConfiguration();
configuration.IsAutoCreated = true;
column.ForeignKeyConfiguration = configuration;
}
// ValuePath will be affected to the FieldName when the configuration is auto-created to be able to modify local source using foreign key value
if (configuration.IsAutoCreated)
{
if (string.IsNullOrEmpty(configuration.ValuePath))
{
configuration.ValuePath = description.ValuePath;
}
if (string.IsNullOrEmpty(configuration.DisplayMemberPath))
{
configuration.DisplayMemberPath = description.DisplayMemberPath;
}
}
// Affect the ItemsSource on the configuration if it is not already set
if ((configuration.ItemsSource == null) && (description.ItemsSource != null))
{
configuration.ItemsSource = description.ItemsSource;
}
// Set the Converter if it was not locally set
if (configuration.ForeignKeyConverter == null)
{
configuration.ForeignKeyConverter = description.ForeignKeyConverter;
}
}
public override object GetValueFromKey(object key, DataGridForeignKeyDescription description)
{
var itemsSource = description.ItemsSource;
if (itemsSource == null)
{
return(key);
}
if ((itemsSource is DataView) || (itemsSource is DataTable))
{
return(new DataTableForeignKeyConverter().GetValueFromKey(key, description));
}
return(this.GetValueFromKeyCore(key, itemsSource, description.ValuePath, description.DisplayMemberPath));
}
internal DataGridItemProperty(
string name,
PropertyDescriptor propertyDescriptor,
string title,
string valueXPath,
string valuePath,
Type dataType,
bool isAutoCreated,
Nullable <bool> isReadOnly,
Nullable <bool> overrideReadOnlyForInsertion,
Nullable <bool> isDisplayable,
Nullable <bool> isASubRelationship,
DataGridForeignKeyDescription foreignKeyDescription)
{
if (string.IsNullOrEmpty(name))
{
throw new ArgumentException("name cannot be null or empty.", "name");
}
if ((string.IsNullOrEmpty(valuePath)) && (string.IsNullOrEmpty(valueXPath)) && (propertyDescriptor == null))
{
throw new ArgumentException("The valuePath, valueXPath, or propertyDescriptor must be provided.");
}
this.Initialize(
name,
propertyDescriptor,
title,
valueXPath,
valuePath,
dataType,
isAutoCreated,
isReadOnly,
overrideReadOnlyForInsertion,
isDisplayable,
isASubRelationship,
foreignKeyDescription);
}
public FieldDescriptor(
string name,
string displayName,
Type dataType,
PropertyDescriptor propertyDescriptor,
string bindingXPath,
string bindingPath,
bool readOnly,
bool overrideReadOnlyForInsertion,
bool supportDBNull,
bool browsable,
bool isASubRelationship,
bool isDataGridUnboundItemProperty,
DataGridForeignKeyDescription foreignKeyDescription )
{
if( name == null )
throw new ArgumentNullException( "name" );
if( displayName == null )
throw new ArgumentNullException( "displayName" );
if( dataType == null )
throw new ArgumentNullException( "dataType" );
this.ReadOnly = readOnly;
this.OverrideReadOnlyForInsertion = overrideReadOnlyForInsertion;
m_name = name;
m_displayName = displayName;
m_dataType = dataType;
m_propertyDescriptor = propertyDescriptor;
m_bindingPath = bindingPath;
m_bindingXPath = bindingXPath;
this.SupportDBNull = supportDBNull;
this.Browsable = browsable;
this.IsASubRelationship = isASubRelationship;
this.IsDataGridUnboundItemProperty = isDataGridUnboundItemProperty;
this.ForeignKeyDescription = foreignKeyDescription;
}
internal static DataGridForeignKeyDescription GetDataGridForeignKeyDescriptionForEnum( Type enumType )
{
DataGridForeignKeyDescription foreignKeyDescription = null;
if( ( enumType != null ) && ( enumType.IsEnum ) )
{
foreignKeyDescription = new DataGridForeignKeyDescription();
// Using "." as default value path will revert to Self when used as
// SelectedValuePath when bound to a DataGridForeignKeyDictionary or
// ComboBox (default editor)
foreignKeyDescription.ValuePath = ".";
foreignKeyDescription.ItemsSource = Enum.GetValues( enumType );
foreignKeyDescription.IsAutoCreated = true;
}
return foreignKeyDescription;
}
private void Initialize(
string name,
PropertyDescriptor propertyDescriptor,
string title,
string valueXPath,
string valuePath,
Type dataType,
bool isAutoCreated,
Nullable<bool> isReadOnly,
Nullable<bool> overrideReadOnlyForInsertion,
Nullable<bool> isASubRelationship,
DataGridForeignKeyDescription foreignKeyDescription )
{
this.IsAutoCreated = isAutoCreated;
m_valueXPath = valueXPath;
m_valuePath = valuePath;
m_propertyDescriptor = propertyDescriptor;
if( m_propertyDescriptor == null )
{
if( ( string.IsNullOrEmpty( m_valueXPath ) ) && ( m_valuePath == "." ) )
m_propertyDescriptor = new SelfPropertyDescriptor( dataType );
}
if( m_propertyDescriptor != null )
{
this.Browsable = m_propertyDescriptor.IsBrowsable;
if( m_propertyDescriptor.IsReadOnly )
isReadOnly = m_propertyDescriptor.IsReadOnly;
}
if( title == null )
{
if( m_propertyDescriptor != null )
{
title = m_propertyDescriptor.DisplayName;
}
}
if( isReadOnly == null )
{
if( m_propertyDescriptor != null )
{
isReadOnly = m_propertyDescriptor.IsReadOnly;
}
}
if( dataType == null )
{
if( m_propertyDescriptor != null )
{
dataType = m_propertyDescriptor.PropertyType;
}
}
this.ForeignKeyDescription = foreignKeyDescription;
base.Initialize( name, title, dataType, isReadOnly, overrideReadOnlyForInsertion, isASubRelationship );
}
internal DataGridItemProperty(
string name,
PropertyDescriptor propertyDescriptor,
string title,
string valueXPath,
string valuePath,
Type dataType,
bool isAutoCreated,
Nullable<bool> isReadOnly,
Nullable<bool> overrideReadOnlyForInsertion,
Nullable<bool> isASubRelationship,
DataGridForeignKeyDescription foreignKeyDescription )
{
if( string.IsNullOrEmpty( name ) )
throw new ArgumentException( "name cannot be null or empty.", "name" );
if( ( string.IsNullOrEmpty( valuePath ) ) && ( string.IsNullOrEmpty( valueXPath ) ) && ( propertyDescriptor == null ) )
throw new ArgumentException( "The valuePath, valueXPath, or propertyDescriptor must be provided." );
this.Initialize(
name,
propertyDescriptor,
title,
valueXPath,
valuePath,
dataType,
isAutoCreated,
isReadOnly,
overrideReadOnlyForInsertion,
isASubRelationship,
foreignKeyDescription );
}
private void Initialize(
string name,
PropertyDescriptor propertyDescriptor,
string title,
string valueXPath,
string valuePath,
Type dataType,
bool isAutoCreated,
Nullable <bool> isReadOnly,
Nullable <bool> overrideReadOnlyForInsertion,
Nullable <bool> isASubRelationship,
DataGridForeignKeyDescription foreignKeyDescription)
{
this.IsAutoCreated = isAutoCreated;
m_valueXPath = valueXPath;
m_valuePath = valuePath;
m_propertyDescriptor = propertyDescriptor;
if (m_propertyDescriptor == null)
{
if ((string.IsNullOrEmpty(m_valueXPath)) && (m_valuePath == "."))
{
m_propertyDescriptor = new SelfPropertyDescriptor(dataType);
}
}
if (m_propertyDescriptor != null)
{
this.Browsable = m_propertyDescriptor.IsBrowsable;
if (m_propertyDescriptor.IsReadOnly)
{
isReadOnly = m_propertyDescriptor.IsReadOnly;
}
}
if (title == null)
{
if (m_propertyDescriptor != null)
{
title = m_propertyDescriptor.DisplayName;
}
}
if (isReadOnly == null)
{
if (m_propertyDescriptor != null)
{
isReadOnly = m_propertyDescriptor.IsReadOnly;
}
}
if (dataType == null)
{
if (m_propertyDescriptor != null)
{
dataType = m_propertyDescriptor.PropertyType;
}
}
this.ForeignKeyDescription = foreignKeyDescription;
base.Initialize(name, title, dataType, isReadOnly, overrideReadOnlyForInsertion, isASubRelationship);
}
internal static void SynchronizeForeignKeyConfigurationFromForeignKeyDescription(
Column column,
DataGridForeignKeyDescription description,
bool autoCreateForeignKeyConfigurations )
{
if( ( description == null ) || ( column == null ) )
return;
ForeignKeyConfiguration configuration = column.ForeignKeyConfiguration;
if( configuration == null )
{
if( !autoCreateForeignKeyConfigurations )
return;
configuration = new ForeignKeyConfiguration();
configuration.IsAutoCreated = true;
column.ForeignKeyConfiguration = configuration;
}
// ValuePath will be affected to the FieldName when the
// configuration is auto-created to be able to modify
// local source using foreign key value
if( configuration.IsAutoCreated )
{
if( string.IsNullOrEmpty( configuration.ValuePath ) )
{
configuration.ValuePath = description.ValuePath;
}
}
// Affect the ItemsSource on the configuration if it is not
// already set
if( ( configuration.ItemsSource == null )
&& ( description.ItemsSource != null ) )
{
configuration.ItemsSource = description.ItemsSource;
}
// Set the Converter if it was not locally set
if( configuration.ForeignKeyConverter == null )
{
configuration.ForeignKeyConverter = description.ForeignKeyConverter;
}
}
internal void SetForeignKeyDescription( DataGridForeignKeyDescription description )
{
if( m_foreignKeyDescription != description )
{
m_foreignKeyDescription = description;
this.OnPropertyChanged( "ForeignKeyDescription" );
}
}
public virtual object GetValueFromKey(object key, DataGridForeignKeyDescription description)
{
return(key);
}
public override object GetValueFromKey(object key, DataGridForeignKeyDescription description)
{
return(this.GetValueFromKeyCore(key, description.ItemsSource, description.ValuePath, description.DisplayMemberPath, false));
}