inabox/inabox.wpf/DynamicGrid/ColumnFilter/IDynamicGridColumnFilter.cs

using InABox.Core;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;

namespace InABox.DynamicGrid;

public interface IDynamicGridColumnFilter
{
    event Action<IDynamicGridColumnFilter>? FilterChanged;

    FrameworkElement CreateControl();

    bool FilterRow(CoreRow row);

    void ClearFilter();

    bool IsFiltered();

    IEnumerable<CoreRow> GetRowsToFilter(IBaseDynamicGrid grid)
    {
        IEnumerable<CoreRow> rows = grid.Data.Rows;
        foreach(var column in grid.ColumnList)
        {
            if(grid.GetColumnFilter(column) is IDynamicGridColumnFilter filter && filter != this)
            {
                rows = rows.Where(filter.FilterRow);
            }
        }
        return rows;
    }
}