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fa99d6e8fa
* fix(module: table): avoid OnChange being called multiple times during initialisation * fix indent
441 lines
14 KiB
C#
441 lines
14 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.ComponentModel;
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using System.ComponentModel.DataAnnotations;
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using System.Linq.Expressions;
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using System.Reflection;
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using AntDesign.Internal;
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using AntDesign.TableModels;
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using Microsoft.AspNetCore.Components;
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namespace AntDesign
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{
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public partial class Column<TData> : ColumnBase, IFieldColumn
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{
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[CascadingParameter(Name = "ItemType")]
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public Type ItemType { get; set; }
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[Parameter]
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public EventCallback<TData> FieldChanged { get; set; }
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[Parameter]
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public Expression<Func<TData>> FieldExpression { get; set; }
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[Parameter]
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public RenderFragment<TData> CellRender { get; set; }
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[Parameter]
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public TData Field
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{
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get
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{
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return GetValue != null ? GetValue(RowData) : _field;
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}
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set
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{
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if (GetValue == null)
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{
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_field = value;
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}
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}
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}
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private TData _field;
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[Parameter]
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public string DataIndex { get; set; }
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[Parameter]
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public string Format { get; set; }
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[Parameter]
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public bool Sortable { get; set; }
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[Parameter]
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public Func<TData, TData, int> SorterCompare { get; set; }
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[Parameter]
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public int SorterMultiple { get; set; }
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[Parameter]
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public bool ShowSorterTooltip { get; set; } = true;
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[Parameter]
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public SortDirection[] SortDirections { get; set; }
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[Parameter]
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public SortDirection DefaultSortOrder { get; set; }
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[Parameter]
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public Func<RowData, Dictionary<string, object>> OnCell { get; set; }
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[Parameter]
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public Func<Dictionary<string, object>> OnHeaderCell { get; set; }
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private bool _filterable;
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private bool _hasFilterableAttribute;
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[Parameter]
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public bool Filterable
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{
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get => _filterable;
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set
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{
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_filterable = value;
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_hasFilterableAttribute = true;
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}
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}
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private IEnumerable<TableFilter> _filters;
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private bool _hasFiltersAttribute;
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[Parameter]
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public IEnumerable<TableFilter<TData>> Filters
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{
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get => _filters as IEnumerable<TableFilter<TData>>;
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set
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{
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_filters = value;
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_hasFiltersAttribute = true;
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}
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}
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[Parameter]
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public bool FilterMultiple { get; set; } = true;
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/// <summary>
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/// Function that determines if the row is displayed when filtered
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/// <para>
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/// Parameter 1: The value of the filter item
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/// </para>
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/// <para>
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/// Parameter 2: The value of the column
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/// </para>
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/// </summary>
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[Parameter]
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public Expression<Func<TData, TData, bool>> OnFilter { get; set; }
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private TableFilterType _columnFilterType;
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private Type _columnDataType;
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public string? DisplayName { get; private set; }
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public string FieldName { get; private set; }
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public ITableSortModel SortModel { get; private set; }
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public ITableFilterModel FilterModel { get; private set; }
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private SortDirection _sortDirection;
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public Func<RowData, TData> GetValue { get; private set; }
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public LambdaExpression GetFieldExpression { get; private set; }
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void IFieldColumn.ClearSorter()
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{
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SetSorter(SortDirection.None);
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if (FieldExpression == null)
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{
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StateHasChanged();
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}
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}
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private static readonly EventCallbackFactory _callbackFactory = new EventCallbackFactory();
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private bool _filterOpened;
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private bool _hasFilterSelected;
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private string[] _selectedFilterValues;
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//private ElementReference _filterTriggerRef;
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protected override void OnInitialized()
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{
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base.OnInitialized();
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Sortable = Sortable || SorterMultiple != default || SorterCompare != default || DefaultSortOrder != default || SortDirections?.Any() == true;
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if (IsHeader)
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{
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if (FieldExpression != null)
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{
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if (FieldExpression.Body is not MemberExpression memberExp)
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{
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throw new ArgumentException("'Field' parameter must be child member");
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}
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var paramExp = Expression.Parameter(ItemType);
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var bodyExp = Expression.MakeMemberAccess(paramExp, memberExp.Member);
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GetFieldExpression = Expression.Lambda(bodyExp, paramExp);
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}
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else if (DataIndex != null)
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{
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(_, GetFieldExpression) = ColumnDataIndexHelper<TData>.GetDataIndexConfig(this);
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}
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if (GetFieldExpression != null)
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{
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var member = ColumnExpressionHelper.GetReturnMemberInfo(GetFieldExpression);
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DisplayName = member?.GetCustomAttribute<DisplayNameAttribute>(true)?.DisplayName
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?? member?.GetCustomAttribute<DisplayAttribute>(true)?.GetName()
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?? member?.Name;
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FieldName = DataIndex ?? member?.Name;
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}
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if (Sortable && GetFieldExpression != null)
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{
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SortModel = new SortModel<TData>(GetFieldExpression, FieldName, SorterMultiple, DefaultSortOrder, SorterCompare);
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}
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}
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else if (IsBody)
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{
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SortModel = Context.HeaderColumns[ColIndex] is IFieldColumn fieldColumn ? fieldColumn.SortModel : null;
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if (DataIndex != null)
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{
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(GetValue, _) = ColumnDataIndexHelper<TData>.GetDataIndexConfig(this);
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}
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}
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SortDirections ??= Table.SortDirections;
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Sortable = Sortable || SortModel != null;
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_sortDirection = SortModel?.SortDirection ?? DefaultSortOrder ?? SortDirection.None;
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if (IsHeader)
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{
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if (_hasFiltersAttribute)
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{
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if (!_hasFilterableAttribute) Filterable = true;
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_columnFilterType = TableFilterType.List;
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}
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else if (_hasFilterableAttribute)
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{
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_columnDataType = THelper.GetUnderlyingType<TData>();
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if (_columnDataType == typeof(bool))
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{
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_columnFilterType = TableFilterType.List;
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_filters = new List<TableFilter>();
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var trueFilterOption = GetNewFilter();
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trueFilterOption.Text = Table.Locale.FilterOptions.True;
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trueFilterOption.Value = true;
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((List<TableFilter>)_filters).Add(trueFilterOption);
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var falseFilterOption = GetNewFilter();
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falseFilterOption.Text = Table.Locale.FilterOptions.False;
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falseFilterOption.Value = false;
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((List<TableFilter>)_filters).Add(falseFilterOption);
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}
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else if (_columnDataType.IsEnum && _columnDataType.GetCustomAttribute<FlagsAttribute>() == null)
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{
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_columnFilterType = TableFilterType.List;
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_filters = new List<TableFilter>();
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foreach (var enumValue in Enum.GetValues(_columnDataType))
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{
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var enumName = Enum.GetName(_columnDataType, enumValue);
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var filterOption = GetNewFilter();
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// use DisplayAttribute only, DisplayNameAttribute is not valid for enum values
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filterOption.Text = _columnDataType.GetMember(enumName)[0].GetCustomAttribute<DisplayAttribute>()?.Name ?? enumName;
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filterOption.Value = enumValue;
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((List<TableFilter>)_filters).Add(filterOption);
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}
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}
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else
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{
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_columnFilterType = TableFilterType.FieldType;
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InitFilters();
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}
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if (_columnFilterType == TableFilterType.List && THelper.IsTypeNullable<TData>())
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{
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var nullFilterOption = GetNewFilter();
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nullFilterOption.Text = Table.Locale.FilterOptions.IsNull;
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nullFilterOption.Value = null;
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((List<TableFilter>)_filters).Add(nullFilterOption);
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}
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}
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Context.HeaderColumnInitialed(this);
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}
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ClassMapper
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.If("ant-table-column-has-sorters", () => Sortable)
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.If($"ant-table-column-sort", () => Sortable && SortModel != null && SortModel.SortDirection.IsIn(SortDirection.Ascending, SortDirection.Descending));
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}
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protected override void OnParametersSet()
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{
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base.OnParametersSet();
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if (IsHeader)
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{
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FilterModel = _filterable && _filters?.Any(x => x.Selected) == true ?
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new FilterModel<TData>(GetFieldExpression, FieldName, OnFilter, _filters.Where(x => x.Selected).ToList(), _columnFilterType) :
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null;
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}
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}
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private string NumberFormatter(object value)
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{
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if (value == null) return null;
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return Convert.ToDouble(value).ToString(Format);
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}
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private void HandleSort()
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{
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if (Sortable)
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{
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SetSorter(NextSortDirection());
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Table.ColumnSorterChange(this);
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}
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}
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private string SorterTooltip
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{
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get
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{
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var next = NextSortDirection();
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return next?.Value switch
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{
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0 => Table.Locale.CancelSort,
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1 => Table.Locale.TriggerAsc,
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2 => Table.Locale.TriggerDesc,
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_ => Table.Locale.CancelSort
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};
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}
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}
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private SortDirection NextSortDirection()
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{
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if (_sortDirection == SortDirection.None)
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{
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return SortDirections[0];
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}
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else
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{
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var index = Array.IndexOf(SortDirections, _sortDirection);
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if (index >= SortDirections.Length - 1)
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{
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return SortDirection.None;
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}
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return SortDirections[index + 1];
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}
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}
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private void SetSorter(SortDirection sortDirection)
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{
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_sortDirection = sortDirection;
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SortModel?.SetSortDirection(sortDirection);
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}
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private void SetFilterCompareOperator(TableFilter filter, TableFilterCompareOperator compareOperator)
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{
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filter.FilterCompareOperator = compareOperator;
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}
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private void SetFilterCondition(TableFilter filter, TableFilterCondition filterCondition)
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{
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filter.FilterCondition = filterCondition;
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}
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private void SetFilterValue(TableFilter filter, object value)
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{
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filter.Value = value;
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}
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private void FilterSelected(TableFilter filter)
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{
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if (_columnFilterType == TableFilterType.FieldType) return;
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if (!FilterMultiple)
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{
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_filters.ForEach(x => x.Selected = false);
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filter.Selected = true;
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}
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else
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{
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filter.Selected = !filter.Selected;
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}
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_selectedFilterValues = _filters.Where(x => x.Selected).Select(x => x.Value?.ToString()).ToArray();
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StateHasChanged();
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}
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private void FilterConfirm(bool isReset = false)
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{
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_filterOpened = false;
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if (!isReset && _columnFilterType == TableFilterType.FieldType)
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{
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_filters?.ForEach(f =>
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{
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f.Selected =
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f.Value != null ||
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f.FilterCompareOperator == TableFilterCompareOperator.IsNotNull ||
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f.FilterCompareOperator == TableFilterCompareOperator.IsNull;
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});
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}
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_hasFilterSelected = _filters?.Any(x => x.Selected) == true;
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FilterModel = _hasFilterSelected ? new FilterModel<TData>(GetFieldExpression, FieldName, OnFilter, _filters.Where(x => x.Selected).ToList(), _columnFilterType) : null;
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Table?.ReloadAndInvokeChange();
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}
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private void ResetFilters()
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{
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if (_columnFilterType == TableFilterType.List)
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{
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_filters.ForEach(x => x.Selected = false);
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}
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else
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{
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InitFilters();
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}
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FilterConfirm(true);
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}
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private void AddFilter()
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{
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((List<TableFilter>)_filters).Add(GetNewFilter());
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}
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private void RemoveFilter(TableFilter filter)
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{
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((List<TableFilter>)_filters).Remove(filter);
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}
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private TableFilter GetNewFilter()
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{
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if (_columnFilterType == TableFilterType.FieldType)
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{
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return new TableFilter()
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{
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FilterCondition = TableFilterCondition.And,
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FilterCompareOperator = _columnDataType == typeof(string) ? TableFilterCompareOperator.Contains : TableFilterCompareOperator.Equals
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};
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}
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else
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{
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return new TableFilter()
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{
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FilterCondition = TableFilterCondition.Or,
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FilterCompareOperator = TableFilterCompareOperator.Equals
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};
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}
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}
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private void InitFilters()
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{
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_filters = new List<TableFilter>() { GetNewFilter() };
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}
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}
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}
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