DevExpress WinForms Pivot Grid (PivotGridControl)

PivotGridControl (namespace DevExpress.XtraPivotGrid) is a cross-tabulation control that summarizes bound data across row and column dimensions — like an Excel PivotTable. Fields are assigned to four areas (Row, Column, Data, Filter); the control computes summaries at every intersection.

Before You Start — Ask the Developer

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1. Data source? In-memory List<T>/DataTable, EF/EF Core, an OLAP cube (SSAS), or an Excel file? This decides the binding approach (see the Decision Guide).
2. Which fields go where? Which columns become Row / Column / Data / Filter fields, and which need calculated or grouped bindings (ExpressionDataBinding, GroupInterval)?
3. Summaries? Default Sum, or other SummaryType / custom summaries? Any % of total / running totals?
4. Layout & interactivity? Should end users rearrange fields (Customization Form), or is the layout fixed in code?
5. Formatting? Cell number formats, conditional formatting (FormatRules: bars/scales/icons), and appearance/skin requirements?
6. Scale & responsiveness? Large in-memory data → Optimized engine + UseAsyncMode. Large database table → server mode (EntityServerModeSource) so aggregation runs in SQL.
7. Persistence? Save/restore the layout (SaveLayoutToXml / RestoreLayoutFromXml)?

Reference Files

Topic	File
NuGet setup, first binding, async mode	references/getting-started.md
DataSource types, DataSourceColumnBinding, OLAP, server mode (large data), calculated bindings	references/data-binding.md
Field areas, totals, groups, BestFit, Customization Form	references/view-layout.md
SummaryType, custom summaries, GroupInterval, sorting, TopN, FilterValues	references/summaries-grouping-sorting-filtering.md
FormatRules, PivotGridFormatRule, rule types	references/conditional-formatting.md
PivotGridAppearances, per-field style, CustomDrawCell, skins	references/appearance.md

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Quick Start (Minimal Working Example)

// NuGet: DevExpress.Win.PivotGrid
// Assembly: DevExpress.XtraPivotGrid.v26.1.dll
using DevExpress.XtraEditors;
using DevExpress.XtraPivotGrid;

public partial class Form1 : XtraForm
{
    public Form1()
    {
        InitializeComponent();

        pivotGridControl1.BeginUpdate();
        try
        {
            pivotGridControl1.OptionsData.DataProcessingEngine =
                PivotDataProcessingEngine.Optimized;
            pivotGridControl1.DataSource = GetSalesData();   // IList / DataTable / BindingSource
            pivotGridControl1.Fields.AddDataSourceColumn("Country",  PivotArea.FilterArea);
            pivotGridControl1.Fields.AddDataSourceColumn("Category", PivotArea.RowArea);
            pivotGridControl1.Fields.AddDataSourceColumn("Year",     PivotArea.ColumnArea);
            pivotGridControl1.Fields.AddDataSourceColumn("Sales",    PivotArea.DataArea);
        }
        finally
        {
            pivotGridControl1.EndUpdate();   // always unlock, even if setup throws
        }
        pivotGridControl1.BestFit();
    }
}

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Decision Guide

What data source to use?

Scenario	Approach
In-memory List<T> / DataTable	DataSource = myList + Optimized engine
Entity Framework / EF Core (small/medium)	DataSource = dbContext.Orders.ToList()
Large database table (EF Core / LINQ)	Server mode — DataSource = new EntityServerModeSource { ElementType=…, QueryableSource=…, KeyExpression=… } (aggregates in SQL)
OLAP cube (SSAS)	Set OLAPConnectionString, use MDX paths in bindings
Excel file	ExcelDataSource + .Fill()

Which binding type for a field?

Scenario	Binding class
Direct column from data source	DataSourceColumnBinding("ColName")
Date grouped by Year/Quarter	DataSourceColumnBinding("Date") { GroupInterval = PivotGroupInterval.DateYear }
Numeric field bucketed by N ("group by 5")	DataSourceColumnBinding("Size") { GroupInterval = PivotGroupInterval.Numeric, GroupIntervalNumericRange = 5 } (do not compute buckets in LINQ; field-level GroupInterval is ignored under the Optimized engine)
Calculated expression	ExpressionDataBinding("[Revenue] - [Cost]")
% of total / running total	PercentOfTotalBinding(sourceBinding, CalculationPartitioningCriteria.ColumnValue) / RunningTotalBinding(...)
OLAP MDX calculated measure	OLAPExpressionBinding("MDX expression")

How to color cells?

Scenario	Technique
Global cell type palette	pivotGridControl1.Appearance.Cell.BackColor = ...
Highlight specific field	field.Appearance.Header.BackColor = ...
Conditional per value	CustomAppearance event (no need to redraw)
Full control over rendering	CustomDrawCell event + e.Handled = true
Excel-style rules (bars, scales, icons)	FormatRules.Add(new PivotGridFormatRule { ... })

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Common Patterns

Date hierarchy (Year → Quarter → Month)

var fY = pivotGridControl1.Fields.AddDataSourceColumn("OrderDate", PivotArea.ColumnArea);
fY.Caption = "Year";
((DataSourceColumnBinding)fY.DataBinding).GroupInterval = PivotGroupInterval.DateYear;
fY.AreaIndex = 0;

var fQ = pivotGridControl1.Fields.AddDataSourceColumn("OrderDate", PivotArea.ColumnArea);
fQ.Caption = "Quarter";
((DataSourceColumnBinding)fQ.DataBinding).GroupInterval = PivotGroupInterval.DateQuarter;
fQ.AreaIndex = 1;

// Group them so they move together
var g = new PivotGridGroup();
g.AddRange(new[] { fY, fQ });
pivotGridControl1.Groups.Add(g);

Currency format on a data field

fieldSales.CellFormat.FormatType   = DevExpress.Utils.FormatType.Numeric;
fieldSales.CellFormat.FormatString = "c2";

Sort category by descending sales

fieldCategory.SortBySummaryInfo.Field = fieldSales;   // rank by the Sales summary
fieldCategory.SortOrder = PivotSortOrder.Descending;   // direction is set on the field

Show Top 5 + "Others"

fieldCategory.TopValueCount      = 5;
fieldCategory.TopValueType       = PivotTopValueType.Absolute;  // Absolute = top N by count (Percent / Sum also available)
fieldCategory.TopValueShowOthers = true;

Async refresh

pivotGridControl1.OptionsBehavior.UseAsyncMode = true;
pivotGridControl1.BeginUpdate();
// … apply changes …
await pivotGridControl1.EndUpdateAsync();

Save / restore layout

pivotGridControl1.SaveLayoutToXml("layout.xml");
pivotGridControl1.RestoreLayoutFromXml("layout.xml");

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Troubleshooting

Symptom	Likely cause	Fix
Fields not visible after assigning DataSource	DataBinding not set	Use Fields.AddDataSourceColumn() or assign field.DataBinding = new DataSourceColumnBinding(...)
ExpressionDataBinding or window calculations not working	Wrong engine	Set OptionsData.DataProcessingEngine = PivotDataProcessingEngine.Optimized
Appearance.FieldHeader.BackColor has no effect	Skin is active	Disable skin or use CustomDrawFieldHeader event
Grand totals hidden	Options disabled	Set OptionsView.ShowColumnGrandTotals = true
CustomDrawCell fires but cells still look default	Forgot e.Handled = true	Always set e.Handled = true at the end
Format rule not applied	IsValid = false	Verify Measure, Settings, and Rule are all set; check field areas
Excel export loses conditional formatting	Data-aware export mode	Switch to WYSIWYG export mode
Grid does not refresh after data change	DataSource is a plain list	Wrap in BindingSource or call pivotGridControl1.RefreshData()
Performance is slow on large data	Default engine; whole table loaded into memory	In-memory: Optimized engine + UseAsyncMode = true. Database-backed: bind via server mode (EntityServerModeSource) so aggregation runs in SQL

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Constraints & Rules

CRITICAL — follow these rules in every interaction:

1. Verify builds: after code changes, run dotnet build and fix every error before you claim success. If the build cannot be executed in this environment, say so explicitly and report the change as unverified — never report success on an unverified build.
2. Do not mix DevExpress package versions: reference the control through the DevExpress.Win.PivotGrid NuGet package — never assembly DLLs by path — and keep every DevExpress package in the project on the same version.
3. Target Windows: PivotGridControl is WinForms-only. Target .NET Framework 4.6.2+ or .NET 8+ with the -windows TFM suffix for SDK-style projects.
4. Batch field changes: wrap bulk field/layout changes in BeginUpdate() / EndUpdate(), and put EndUpdate() in a finally block so the control is never left update-locked if setup throws. Use UseAsyncMode + EndUpdateAsync() for large data.
5. Bindings are required: a field only shows data when its DataBinding is set — use Fields.AddDataSourceColumn(...) or assign a *Binding object. For expression/window calculations set OptionsData.DataProcessingEngine = PivotDataProcessingEngine.Optimized.
6. CustomDrawCell must set e.Handled = true when you take over rendering, or the default cell still paints over your drawing.
7. Adding assembly references (.NET Framework): Resolve the required assemblies via the DevExpress Docs MCP and add the corresponding NuGet package. Avoid manually editing the .csproj references node to add new assembly references.

Using DevExpress Documentation MCP

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Use MCP for: exact SummaryType / PivotGroupInterval / PivotArea enum members, OLAP/MDX binding details, the full OptionsData / OptionsView / OptionsBehavior surfaces, PivotGridFormatRule rule types, custom-draw event arguments, and Excel/PDF export options.

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Source Documentation

• Pivot Grid overview: https://docs.devexpress.com/content/WindowsForms/3409?md=true
• PivotGridControl class: https://docs.devexpress.com/content/WindowsForms/DevExpress.XtraPivotGrid.PivotGridControl?md=true
• Getting started walkthroughs: https://docs.devexpress.com/content/WindowsForms/404088?md=true
• Data Binding: https://docs.devexpress.com/content/WindowsForms/1842?md=true
• Grouping: https://docs.devexpress.com/content/WindowsForms/1846?md=true
• Sorting: https://docs.devexpress.com/content/WindowsForms/1809?md=true
• Filtering: https://docs.devexpress.com/content/WindowsForms/1811?md=true
• Summaries: https://docs.devexpress.com/content/WindowsForms/9384?md=true
• Conditional Formatting: https://docs.devexpress.com/content/WindowsForms/1883?md=true
• Appearance: https://docs.devexpress.com/content/WindowsForms/1843?md=true
• Custom Draw: https://docs.devexpress.com/content/WindowsForms/1817?md=true