public override bool Equals(object other)
{
if (other is DataTablePropertyDescriptor)
{
DataTablePropertyDescriptor descriptor = (DataTablePropertyDescriptor)other;
return(descriptor.Table == Table);
}
return(false);
}
public override bool Equals([NotNullWhen(true)] object?other)
{
if (other is DataTablePropertyDescriptor)
{
DataTablePropertyDescriptor descriptor = (DataTablePropertyDescriptor)other;
return(descriptor.Table == Table);
}
return(false);
}
/// <include file='doc\DataViewManagerListItemTypeDescriptor.uex' path='docs/doc[@for="DataViewManagerListItemTypeDescriptor.ICustomTypeDescriptor.GetProperties1"]/*' />
/// <devdoc>
/// Retrieves an array of properties that the given component instance
/// provides. This may differ from the set of properties the class
/// provides. If the component is sited, the site may add or remove
/// additional properties. The returned array of properties will be
/// filtered by the given set of attributes.
/// </devdoc>
PropertyDescriptorCollection ICustomTypeDescriptor.GetProperties(Attribute[] attributes)
{
if (propsCollection == null)
{
PropertyDescriptor[] props = null;
DataSet dataSet = dataViewManager.DataSet;
if (dataSet != null)
{
int tableCount = dataSet.Tables.Count;
props = new PropertyDescriptor[tableCount];
for (int i = 0; i < tableCount; i++)
{
props[i] = new DataTablePropertyDescriptor(dataSet.Tables[i]);
}
}
propsCollection = new PropertyDescriptorCollection(props);
}
return(propsCollection);
}
internal PropertyDescriptorCollection GetPropertiesInternal()
{
if (_propsCollection == null)
{
PropertyDescriptor[]? props = null;
DataSet?dataSet = _dataViewManager.DataSet;
if (dataSet != null)
{
int tableCount = dataSet.Tables.Count;
props = new PropertyDescriptor[tableCount];
for (int i = 0; i < tableCount; i++)
{
props[i] = new DataTablePropertyDescriptor(dataSet.Tables[i]);
}
}
_propsCollection = new PropertyDescriptorCollection(props);
}
return(_propsCollection);
}
public PropertyDescriptorCollection GetProperties()
{
DataSet ds = dvm.DataSet;
if (ds == null)
{
return(null);
}
DataTableCollection tables = ds.Tables;
int index = 0;
PropertyDescriptor [] descriptors = new PropertyDescriptor [tables.Count];
foreach (DataTable table in tables)
{
descriptors [index++] = new DataTablePropertyDescriptor(table);
}
return(new PropertyDescriptorCollection(descriptors));
}
private ListChangedEventArgs CollectionToListChangeEventArgs(CollectionChangeEventArgs e)
{
ListChangedEventArgs args;
if (e.Action == CollectionChangeAction.Remove)
{
args = null;
}
else if (e.Action == CollectionChangeAction.Refresh)
{
args = new ListChangedEventArgs(ListChangedType.PropertyDescriptorChanged, null);
}
else
{
object obj;
if (typeof(DataTable).IsAssignableFrom(e.Element.GetType()))
{
obj = new DataTablePropertyDescriptor((DataTable)e.Element);
}
else // Assume a DataRelation
{
obj = new DataRelationPropertyDescriptor((DataRelation)e.Element);
}
if (e.Action == CollectionChangeAction.Add)
{
args = new ListChangedEventArgs(ListChangedType.PropertyDescriptorAdded, (PropertyDescriptor)obj);
}
else
{
args = new ListChangedEventArgs(ListChangedType.PropertyDescriptorDeleted, (PropertyDescriptor)obj);
}
}
return(args);
}
private ListChangedEventArgs CollectionToListChangeEventArgs (CollectionChangeEventArgs e)
{
ListChangedEventArgs args;
if (e.Action == CollectionChangeAction.Remove)
args = null;
else if (e.Action == CollectionChangeAction.Refresh)
args = new ListChangedEventArgs(ListChangedType.PropertyDescriptorChanged, null);
else {
object obj;
if (typeof (DataTable).IsAssignableFrom (e.Element.GetType()))
obj = new DataTablePropertyDescriptor ((DataTable) e.Element);
else // Assume a DataRelation
obj = new DataRelationPropertyDescriptor((DataRelation) e.Element);
if (e.Action == CollectionChangeAction.Add)
args = new ListChangedEventArgs(ListChangedType.PropertyDescriptorAdded, (PropertyDescriptor) obj);
else
args = new ListChangedEventArgs(ListChangedType.PropertyDescriptorDeleted, (PropertyDescriptor) obj);
}
return args;
}
PropertyDescriptorCollection ICustomTypeDescriptor.GetProperties(Attribute[] attributes)
{
if (this.propsCollection == null)
{
PropertyDescriptor[] properties = null;
DataSet dataSet = this.dataViewManager.DataSet;
if (dataSet != null)
{
int count = dataSet.Tables.Count;
properties = new PropertyDescriptor[count];
for (int i = 0; i < count; i++)
{
properties[i] = new DataTablePropertyDescriptor(dataSet.Tables[i]);
}
}
this.propsCollection = new PropertyDescriptorCollection(properties);
}
return this.propsCollection;
}
public PropertyDescriptorCollection GetProperties ()
{
DataSet ds = dvm.DataSet;
if (ds == null)
return null;
DataTableCollection tables = ds.Tables;
int index = 0;
PropertyDescriptor [] descriptors = new PropertyDescriptor [tables.Count];
foreach (DataTable table in tables)
descriptors [index++] = new DataTablePropertyDescriptor (table);
return new PropertyDescriptorCollection (descriptors);
}
