private void FilterLoadFunction(object args)
{
RoutedEventArgs routedEventArgs = args as RoutedEventArgs;
DataGridColumnHeader columnHeader = (routedEventArgs.OriginalSource as ToggleExtend).GetParent <DataGridColumnHeader>();
DataGridColumn dataGridColumn = columnHeader.Column;
OptionColumnInfo = new OptionColumnInfo(dataGridColumn, DataGridExtend);
RoutedEventArgs routedEvent = new RoutedEventArgs(DataGridExtend.InitFilterColumnEvent, OptionColumnInfo.PropertyPath);
DataGridExtend.RaiseEvent(routedEvent);
ObservableCollection <FilterKeyValue> filter = new ObservableCollection <FilterKeyValue>();
if (FilteredItemsSource == null)
{
FilteredItemsSource = new ObservableCollection <FilterKeyValue>();
foreach (var item in DataGridExtend.FilteredItemsSource)
{
if (item is ICateoryFilter cateory)
{
FilterKeyValue filterKeyValue = new FilterKeyValue();
filterKeyValue.DiaplayValue = cateory.FilterColumnValue?.ToString();
filterKeyValue.ID = cateory.ID;
FilteredItemsSource.Add(filterKeyValue);
}
}
}
else
{
foreach (var item in DataGridExtend.FilteredItemsSource)
{
if (item is ICateoryFilter cateory)
{
if (FilteredItemsSource.Where(p => p.ID == cateory.ID).Count() > 0)
{
FilterKeyValue filterKeyValue = FilteredItemsSource.Where(p => p.ID == cateory.ID).ToList()[0];
filterKeyValue.DiaplayValue = cateory.FilterColumnValue?.ToString();
}
else
{
FilterKeyValue filterKeyValue = new FilterKeyValue();
filterKeyValue.DiaplayValue = cateory.FilterColumnValue?.ToString();
FilteredItemsSource.Add(filterKeyValue);
}
}
}
}
foreach (var item in FilteredItemsSource)
{
if (filter.Where(p => p.DiaplayValue == item.DiaplayValue).ToList().Count <= 0)
{
filter.Add(item);
}
}
CategoryFilter = filter;
}
void ColumnFilterControl_Loaded(object sender, RoutedEventArgs e)
{
DataGridColumn column = null;
DataGridColumnHeader colHeader = null;
UIElement parent = (UIElement)VisualTreeHelper.GetParent(this);
while (parent != null)
{
parent = (UIElement)VisualTreeHelper.GetParent(parent);
if (colHeader == null)
{
colHeader = parent as DataGridColumnHeader;
}
if (Grid == null)
{
Grid = parent as DataGridExtend;
}
}
if (colHeader != null)
{
column = colHeader.Column;
}
CanUserFreeze = Grid.CanUserFreeze;
CanUserGroup = Grid.CanUserGroup;
CanUserSelectDistinct = Grid.CanUserSelectDistinct;
FilterColumnInfo = new OptionColumnInfo(column, Grid);
if (column != null)
{
object oCanUserFreeze = column.GetValue(ColumnConfiguration.CanUserFreezeProperty);
if (oCanUserFreeze != null)
{
CanUserFreeze = (bool)oCanUserFreeze;
Grid.FreezeColumn(FilterColumnInfo.Column);
}
object oCanUserGroup = column.GetValue(ColumnConfiguration.CanUserGroupProperty);
if (oCanUserGroup != null)
{
CanUserGroup = (bool)oCanUserGroup;
if (!string.IsNullOrWhiteSpace(FilterColumnInfo.PropertyPath))
{
Grid.AddGroup(FilterColumnInfo.PropertyPath);
}
}
object oCanUserSelectDistinct = column.GetValue(ColumnConfiguration.CanUserSelectDistinctProperty);
if (oCanUserSelectDistinct != null)
{
CanUserSelectDistinct = (bool)oCanUserSelectDistinct;
}
}
if (Grid.FilterType == null)
{
return;
}
Grid.RegisterOptionControl(this);
FilterOperations.Clear();
if (FilterColumnInfo.PropertyType != null)
{
if (TypeHelper.IsNumbericType(FilterColumnInfo.PropertyType) && TypeHelper.IsStringType(FilterColumnInfo.PropertyConvertType))
{
FilterOperations.Add(new FilterOperationItem(Enums.FilterOperation.Equals, "=", "/Jib.WPF.Controls;component/Images/Equal.png"));
CalcControlVisibility(ColumnType.ConvertString);
}
else
{
if (TypeHelper.IsStringType(FilterColumnInfo.PropertyType) || TypeHelper.IsStringType(FilterColumnInfo.PropertyConvertType))
{
FilterOperations.Add(new FilterOperationItem(Enums.FilterOperation.Contains, "Contains", "/Jib.WPF.Controls;component/Images/Contains.png"));
FilterOperations.Add(new FilterOperationItem(Enums.FilterOperation.StartsWith, "Starts With", "/Jib.WPF.Controls;component/Images/StartsWith.png"));
FilterOperations.Add(new FilterOperationItem(Enums.FilterOperation.EndsWith, "Ends With", "/Jib.WPF.Controls;component/Images/EndsWith.png"));
CalcControlVisibility(ColumnType.String);
}
FilterOperations.Add(new FilterOperationItem(Enums.FilterOperation.Equals, "=", "/Jib.WPF.Controls;component/Images/Equal.png"));
if (TypeHelper.IsNumbericType(FilterColumnInfo.PropertyType))
{
FilterOperations.Add(new FilterOperationItem(Enums.FilterOperation.GreaterThan, ">", "/Jib.WPF.Controls;component/Images/GreaterThan.png"));
FilterOperations.Add(new FilterOperationItem(Enums.FilterOperation.GreaterThanEqual, ">=", "/Jib.WPF.Controls;component/Images/GreaterThanEqual.png"));
FilterOperations.Add(new FilterOperationItem(Enums.FilterOperation.LessThan, "<", "/Jib.WPF.Controls;component/Images/LessThan.png"));
FilterOperations.Add(new FilterOperationItem(Enums.FilterOperation.LessThanEqual, "<=", "/Jib.WPF.Controls;component/Images/GreaterThanEqual.png"));
FilterOperations.Add(new FilterOperationItem(Enums.FilterOperation.NotEquals, "!=", "/Jib.WPF.Controls;component/Images/NotEqual.png"));
CalcControlVisibility(ColumnType.Num);
}
if (TypeHelper.IsBoolType(FilterColumnInfo.PropertyType) || TypeHelper.IsBoolType(FilterColumnInfo.PropertyConvertType))
{
CalcControlVisibility(ColumnType.Bool);
}
if (TypeHelper.IsDateTimeType(FilterColumnInfo.PropertyType))
{
FilterOperations.Add(new FilterOperationItem(Enums.FilterOperation.GreaterThan, ">", "/Jib.WPF.Controls;component/Images/GreaterThan.png"));
FilterOperations.Add(new FilterOperationItem(Enums.FilterOperation.GreaterThanEqual, ">=", "/Jib.WPF.Controls;component/Images/GreaterThanEqual.png"));
FilterOperations.Add(new FilterOperationItem(Enums.FilterOperation.LessThan, "<", "/Jib.WPF.Controls;component/Images/LessThan.png"));
FilterOperations.Add(new FilterOperationItem(Enums.FilterOperation.LessThanEqual, "<=", "/Jib.WPF.Controls;component/Images/GreaterThanEqual.png"));
FilterOperations.Add(new FilterOperationItem(Enums.FilterOperation.NotEquals, "!=", "/Jib.WPF.Controls;component/Images/NotEqual.png"));
CalcControlVisibility(ColumnType.Date);
}
}
if (FilterOperations.Count > 0)
{
SelectedFilterOperation = FilterOperations[0];
}
}
if (FilterColumnInfo != null && FilterColumnInfo.IsValid)
{
foreach (var i in DistinctPropertyValues.Where(i => i.IsChecked))
{
i.IsChecked = false;
}
DistinctPropertyValues.Clear();
FilterText = string.Empty;
_boundColumnPropertyAccessor = null;
if (!string.IsNullOrWhiteSpace(FilterColumnInfo.PropertyPath))
{
if (FilterColumnInfo.PropertyPath.Contains('.'))
{
throw new ArgumentException(string.Format("This version of the grid does not support a nested property path such as '{0}'. Please make a first-level property for filtering and bind to that.", FilterColumnInfo.PropertyPath));
}
this.Visibility = System.Windows.Visibility.Visible;
ParameterExpression arg = System.Linq.Expressions.Expression.Parameter(typeof(object), "x");
System.Linq.Expressions.Expression expr = System.Linq.Expressions.Expression.Convert(arg, Grid.FilterType);
expr = System.Linq.Expressions.Expression.Property(expr, Grid.FilterType, FilterColumnInfo.PropertyPath);
System.Linq.Expressions.Expression conversion = System.Linq.Expressions.Expression.Convert(expr, typeof(object));
_boundColumnPropertyAccessor = System.Linq.Expressions.Expression.Lambda <Func <object, object> >(conversion, arg).Compile();
if (_boundColumnPropertyAccessor != null)
{
if (DistinctPropertyValues.Count == 0)
{
//List<object> result = new List<object>();
//foreach (var i in Grid.ItemsSource)
//{
// object value = _boundColumnPropertyAccessor(i);
// if (value != null)
// {
// if (result.Where(o => o.ToString() == value.ToString()).Count() == 0)
// result.Add(value);
// }
// else if (FilterColumnInfo.PropertyType == typeof(bool?) && FilterColumnInfo.IsSpecialState)
// {
// if (result.Where(o => o == value).Count() == 0)
// result.Add(value);
// }
//}
//try
//{
// result.Sort();
//}
//catch
//{
// if (System.Diagnostics.Debugger.IsLogging())
// System.Diagnostics.Debugger.Log(0, "Warning", "There is no default compare set for the object type");
//}
//if (result.Count > 0)
//{
// StringBuilder sb = new StringBuilder();
// foreach (var obj in result)
// {
// var item = new CheckboxComboItem()
// {
// Description = GetFormattedValue(obj),
// Tag = obj,
// IsChecked = true
// };
// item.PropertyChanged += new PropertyChangedEventHandler(filter_PropertyChanged);
// DistinctPropertyValues.Add(item);
// sb.AppendFormat("{0}{1}", sb.Length > 0 ? "," : "",item.Description );
// }
// FilterText = sb.ToString();
//}
//else
//{
// FilterText = string.Empty;
//}
}
}
}
else
{
this.Visibility = System.Windows.Visibility.Collapsed;
}
object oDefaultFilter = column.GetValue(ColumnConfiguration.DefaultFilterProperty);
if (oDefaultFilter != null)
{
FilterText = (string)oDefaultFilter;
}
}
}
