/// <summary>
/// Opens the FilterOptionPopup with the FilterOptionList.
/// </summary>
public virtual void OpenFilterOptionPopup()
{
if (this.FilterOptionButtonVisibility == Visibility.Collapsed)
{
return;
}
if (!this.ColumnBase.IsEditing)
{
this.ColumnBase.Renderer.DataGrid.SelectionController.CurrentCellManager.BeginEdit();
}
var list = this.GetFilterOptionsList();
if (list.Count > 0)
{
this.FilterOptionsList.ItemsSource = list;
this.FilterOptionsList.SelectedItem = FilterRowHelpers.GetResourceWrapper(this.ColumnBase.GridColumn.FilterRowCondition);
#if !WPF
this.FilterOptionPopup.VerticalOffset = this.ActualHeight;
#endif
FilterOptionPopup.IsOpen = true;
#if WPF
this.FilterOptionsList.ItemContainerGenerator.StatusChanged += OnItemContainerGeneratorStatusChanged;
#endif
}
}
/// <summary>
/// Gets the list of FilterPredicates for the corresponding column.
/// </summary>
/// <param name="filterValue">Value that want to be filter in corresponding column.</param>
/// <returns>
/// Returns the list of FilterPredicates that have been generated for the particular column.
/// </returns>
protected List<FilterPredicate> GetFilterPredicates(object filterValue)
{
var column = this.FilterRowCell.DataColumn.GridColumn;
if (column == null)
return null;
var filterPredicates = new List<FilterPredicate>();
if (column.FilterRowCondition == FilterRowCondition.NotNull || column.FilterRowCondition == FilterRowCondition.Null)
filterValue = null;
else if (column.FilterRowCondition == FilterRowCondition.Empty || column.FilterRowCondition == FilterRowCondition.NotEmpty)
filterValue = string.Empty;
else if ((filterValue == null || filterValue.ToString() == string.Empty))
return filterPredicates;
var filterMode = isSupportDisplayTextFiltering(column) || (column.GetType() != typeof(GridTextColumn) && column.GetFilterBehavior() == FilterBehavior.StringTyped) ? ColumnFilter.DisplayText : ColumnFilter.Value;
var filterPredicate = new FilterPredicate()
{
FilterBehavior = column.GetFilterBehavior(),
FilterType = FilterRowHelpers.GetFilterType(column.FilterRowCondition),
FilterValue = filterValue,
IsCaseSensitive = column.IsCaseSensitiveFilterRow,
PredicateType = PredicateType.And ,
FilterMode = filterMode
};
filterPredicates.Add(filterPredicate);
return filterPredicates;
}
/// <summary>
/// Process the filtering when the FilterRowCondition is changed in corresponding column.
/// </summary>
/// <param name="filterRowCondition">The new FilterRowCondition that have been changed.</param>
public virtual void OnFilterRowConditionChanged(string filterRowCondition)
{
if (filterRowCondition == FilterRowHelpers.GetResourceWrapper(this.FilterRowCell.DataColumn.GridColumn.FilterRowCondition))
return;
this.FilterRowCell.DataColumn.GridColumn.UpdateFilterType(FilterRowHelpers.GetFilterRowCondition(filterRowCondition));
object filterValue;
if (this.IsInEditing)
filterValue = this.GetControlValue();
else
filterValue = this.FilterRowCell.DataColumn.GridColumn.FilterPredicates.Count > 0 && this.FilterRowCell.DataColumn.GridColumn.FilteredFrom == FilteredFrom.FilterRow
? this.FilterRowCell.DataColumn.GridColumn.FilterPredicates[0].FilterValue : null;
var filterType = this.FilterRowCell.DataColumn.GridColumn.FilterRowCondition;
this.ProcessSingleFilter(filterValue);
this.SetFocus(true);
if (this.IsInEditing && (filterType == FilterRowCondition.Empty || filterType == FilterRowCondition.NotEmpty || filterType == FilterRowCondition.NotNull
|| filterType == FilterRowCondition.Null))
{
this.SetControlValue(null);
this.DataGrid.SelectionController.CurrentCellManager.EndEdit();
}
else if (!this.IsInEditing)
#if WPF
Dispatcher.CurrentDispatcher.BeginInvoke(new Action(() =>
{
#endif
this.DataGrid.SelectionController.CurrentCellManager.BeginEdit();
#if WPF
}), DispatcherPriority.ApplicationIdle);
#endif
}
/// <summary>
/// Gets the FilterText that want to be displayed in particular FilterRow Cell.
/// </summary>
/// <param name="filterValues">The list of FilterPredicates that have been created to the particular column.</param>
public virtual string GetFilterText(List<FilterPredicate> filterPredicates)
{
string _filterText = string.Empty;
if (filterPredicates.Count > 0)
{
#if WPF
if(this.EditorType == typeof(ComboBoxAdv) && this.HasCurrentCellState)
{
var comboBox = (ComboBoxAdv) this.CurrentCellRendererElement;
if (comboBox.AllowMultiSelect)
{
var selectedItems = ((IList) comboBox.SelectedItems).Cast<FilterRowElement>().ToList();
foreach (var item in selectedItems)
{
_filterText += item.DisplayText;
if (selectedItems.IndexOf(item) < selectedItems.Count - 1)
_filterText += comboBox.SelectedValueDelimiter;
}
}
else
_filterText = (comboBox.SelectedItem as FilterRowElement).DisplayText;
return _filterText;
}
#endif
var filterRowCond = this.FilterRowCell.DataColumn.GridColumn.FilterRowCondition;
if (filterRowCond == FilterRowCondition.Null || filterRowCond == FilterRowCondition.NotNull
|| filterRowCond == FilterRowCondition.Empty || filterRowCond == FilterRowCondition.NotEmpty)
_filterText = FilterRowHelpers.GetResourceWrapper(this.FilterRowCell.DataColumn.GridColumn.FilterRowCondition);
else
{
var filterValue = filterPredicates[0].FilterValue;
if (filterValue != null && filterValue.ToString() != string.Empty)
_filterText = this.FilterRowCell.DataColumn.GridColumn.GetFormatedFilterText(filterValue);
}
}
return _filterText;
}
