Add growth rate and VLF count columns (#567) #625
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,136 @@ | ||
| /* | ||
| * Copyright (c) 2026 Erik Darling, Darling Data LLC | ||
| * | ||
| * This file is part of the SQL Server Performance Monitor. | ||
| * | ||
| * Licensed under the MIT License. See LICENSE file in the project root for full license information. | ||
| */ | ||
|
|
||
| using System; | ||
| using System.Collections.Generic; | ||
| using System.Linq; | ||
| using System.Windows; | ||
| using System.Windows.Controls; | ||
| using System.Windows.Media; | ||
| using PerformanceMonitorDashboard.Models; | ||
|
|
||
| namespace PerformanceMonitorDashboard.Services; | ||
|
|
||
| /// <summary> | ||
| /// Non-generic interface for looking up filter state from a shared dictionary. | ||
| /// </summary> | ||
| public interface IDataGridFilterManager | ||
| { | ||
| Dictionary<string, ColumnFilterState> Filters { get; } | ||
| void SetFilter(ColumnFilterState filterState); | ||
| void UpdateFilterButtonStyles(); | ||
| } | ||
|
|
||
| /// <summary> | ||
| /// Manages column filter state, unfiltered data capture, and filter application | ||
| /// for a single DataGrid. Eliminates per-grid boilerplate code. | ||
| /// </summary> | ||
| public class DataGridFilterManager<T> : IDataGridFilterManager | ||
| { | ||
| private readonly DataGrid _dataGrid; | ||
| private readonly Dictionary<string, ColumnFilterState> _filters = new(); | ||
| private List<T>? _unfilteredData; | ||
|
|
||
| public DataGridFilterManager(DataGrid dataGrid) | ||
| { | ||
| _dataGrid = dataGrid; | ||
| } | ||
|
|
||
| public Dictionary<string, ColumnFilterState> Filters => _filters; | ||
|
|
||
| /// <summary> | ||
| /// Called when new data arrives (refresh cycle). Captures unfiltered data, | ||
| /// then re-applies any active filters. | ||
| /// </summary> | ||
| public void UpdateData(List<T> newData) | ||
| { | ||
| _unfilteredData = newData; | ||
|
|
||
| if (!HasActiveFilters()) | ||
| { | ||
| _dataGrid.ItemsSource = newData; | ||
| return; | ||
| } | ||
|
|
||
| ApplyFilters(); | ||
| } | ||
|
|
||
| /// <summary> | ||
| /// Applies or removes a filter and re-filters the data. | ||
| /// </summary> | ||
| public void SetFilter(ColumnFilterState filterState) | ||
| { | ||
| if (filterState.IsActive) | ||
| _filters[filterState.ColumnName] = filterState; | ||
| else | ||
| _filters.Remove(filterState.ColumnName); | ||
|
|
||
| ApplyFilters(); | ||
| UpdateFilterButtonStyles(); | ||
| } | ||
|
|
||
| private bool HasActiveFilters() | ||
| { | ||
| return _filters.Count > 0 && _filters.Values.Any(f => f.IsActive); | ||
| } | ||
|
|
||
| private void ApplyFilters() | ||
| { | ||
| if (_unfilteredData == null) return; | ||
|
|
||
| if (!HasActiveFilters()) | ||
| { | ||
| _dataGrid.ItemsSource = _unfilteredData; | ||
| return; | ||
| } | ||
|
|
||
| var filteredData = _unfilteredData.Where(item => | ||
| { | ||
| foreach (var filter in _filters.Values) | ||
| { | ||
| if (filter.IsActive && !DataGridFilterService.MatchesFilter(item!, filter)) | ||
| return false; | ||
| } | ||
| return true; | ||
| }).ToList(); | ||
|
|
||
| _dataGrid.ItemsSource = filteredData; | ||
| } | ||
|
|
||
| /// <summary> | ||
| /// Updates filter icon colors (gold when active, dim when inactive). | ||
| /// </summary> | ||
| public void UpdateFilterButtonStyles() | ||
| { | ||
| foreach (var column in _dataGrid.Columns) | ||
| { | ||
| if (column.Header is StackPanel headerPanel) | ||
| { | ||
| var filterButton = headerPanel.Children.OfType<Button>().FirstOrDefault(); | ||
| if (filterButton != null && filterButton.Tag is string columnName) | ||
| { | ||
| bool hasActive = _filters.TryGetValue(columnName, out var filter) && filter.IsActive; | ||
|
|
||
| var textBlock = new TextBlock | ||
| { | ||
| Text = hasActive ? "\uE16E" : "\uE71C", | ||
| FontFamily = new FontFamily("Segoe MDL2 Assets"), | ||
| Foreground = hasActive | ||
| ? new SolidColorBrush(Color.FromRgb(0xFF, 0xD7, 0x00)) | ||
| : (Brush)Application.Current.FindResource("ForegroundDimBrush") | ||
| }; | ||
| filterButton.Content = textBlock; | ||
|
|
||
| filterButton.ToolTip = hasActive && filter != null | ||
| ? $"Filter: {filter.DisplayText}\n(Click to modify)" | ||
| : "Click to filter"; | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } |
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Unify Database Sizes column filters under one handler.
Line 1063 and Line 1071 use
DatabaseSizesFilter_Click, while otherDatabaseSizesDataGridcolumns still useFinOpsFilter_Click. This splits state across two managers, so filters in the same grid won’t compose reliably and refresh can drop one side’s filter state.🤖 Prompt for AI Agents