/// <summary>
/// Applies the filter to the Engine.
/// </summary>
public void Apply()
{
if (_tableDescriptor != null && _recordFilters != null)
{
_tableDescriptor.RecordFilters.InitializeFrom(_recordFilters);
}
_recordFilters = null;
}
/// <summary>
/// A method that applies (All) type filtering to the column.
/// </summary>
/// <remarks>Resets the filter applied to that column.</remarks>
public void SelectAll()
{
_tableDescriptor = _engine.TableDescriptor;//identity.Table.TableDescriptor;
_recordFilters = new RecordFilterDescriptorCollection();
_recordFilters.InitializeFrom(_tableDescriptor.RecordFilters);
var removefdc = GetFilters(_recordFilters, _identity);
if (removefdc == null)
{
return;
}
foreach (var rfd in removefdc)
{
_recordFilters.Remove(rfd);
}
}
/// <summary>
/// A method that applies specific item filtering to the column.
/// </summary>
/// <param name="index">selected index</param>
public void SelectItem(int index)
{
var filterName = GetUniqueColumnGroupId(_identity);
_tableDescriptor = _engine.TableDescriptor;//identity.Table.TableDescriptor;
_recordFilters = new RecordFilterDescriptorCollection();
_recordFilters.InitializeFrom(_tableDescriptor.RecordFilters);
var items = GetFilterBarChoices(_identity);
////check to see if list was shortened after index was set
if (index >= items.GetLength(0))
{
return;
}
var value = items[index];
var removefdc = GetFilters(_recordFilters, _identity);
if (removefdc != null)
{
foreach (var rfd in removefdc)
{
_recordFilters.Remove(rfd);
}
}
var newFilter = new RecordFilterDescriptor
{
Name = filterName,
MappingName = _identity.Column.MappingName,
UniqueGroupId = GetUniqueGroupId(_identity)
};
newFilter.Conditions.Add(new FilterCondition(FilterCompareOperator.Equals, value));
_recordFilters.Add(newFilter);
}
/// <summary>
/// A method that returns filter collection applied so far to the respective column.
/// </summary>
/// <param name="recordFilters">Filtercollection</param>
/// <param name="tableCellIdentity">StyleInfoIdentity</param>
/// <returns>Collection of filters.</returns>
private IEnumerable <RecordFilterDescriptor> GetFilters(RecordFilterDescriptorCollection recordFilters, GridTableCellStyleInfoIdentity tableCellIdentity)
{
var rfdc = recordFilters.GetRecordFilters(tableCellIdentity.Column.MappingName);
if (rfdc != null)
{
var uniqueId = tableCellIdentity.DisplayElement.ParentGroup.UniqueGroupId;
var rfdList = new ArrayList();
foreach (var rfd in rfdc)
{
if (rfd.CompareUniqueId(uniqueId))
{
rfdList.Add(rfd);
}
}
if (rfdList.Count > 0)
{
return((RecordFilterDescriptor[])rfdList.ToArray(typeof(RecordFilterDescriptor)));
}
}
return(null);
}
