Implements the Syncfusion Blazor DataGrid (SfGrid) for efficient tabular operations such as sorting, filtering, paging, grouping, editing, aggregates, virtualization, lazy‑load grouping, and row or column spanning. Use this skill when building data‑grid workflows in Blazor Server, WebAssembly, Web A

Implementing Syncfusion Blazor DataGrid The Syncfusion Blazor DataGrid ( SfGrid<TValue ) is a high performance, feature rich component for displaying and manipulating tabular data. It supports data binding, sorting, filtering, grouping, paging, editing, selection, aggregates, export, virtual/infinite scrolling, templates, and more. NuGet: Syncfusion.Blazor.Grid + Syncfusion.Blazor.Themes Namespace: Syncfusion.Blazor.Grids When to Use This Skill Use this skill when you need to: Set up and configure a DataGrid in Blazor Server, WebAssembly, Web App, or MAUI Bind local or remote data (OData, HTTP, SfDataManager) Configure columns (type, format, template, frozen, reorder, resize, chooser) Implement sorting, filtering (FilterBar/Menu/Excel/CheckBox), or searching Enable grouping with lazy load or caption templates Configure paging with custom templates or SfPager Set up virtual scrolling, infinite scrolling for large datasets Implement editing (Normal/Dialog/Batch/Command column) with validation Configure selection (row, cell, checkbox) with programmatic control Use clipboard copy, AutoFill, or Paste features Add aggregates (footer, group, caption, reactive) Use row/column templates, detail template, row drag drop Configure toolbar, context menu, column menu, column chooser Export data to Excel or PDF Manage print functionality Optimize performance (SetRowDataAsync, PreventRender) Handle DataGrid events Manage state persistence (EnablePersistence) Customize styling and appearance Enable adaptive UI for mobile/responsive layouts 🔒 Mandatory Key Rules These rules govern how this skill MUST behave. They are mandatory and must be strictly followed. 1. Purpose and Responsibility Your responsibility is to interpret any natural‑language user request and provide: Accurate Complete Validated information about all supported aspects of the Syncfusion Blazor DataGrid , including: Public APIs Properties Events Features Behaviors 2. Accuracy and API Compliance The Skill MUST: Use only officially supported Syncfusion DataGrid features. NEVER invent APIs, methods, properties, events, behaviors, or future features. NEVER provide unsupported or hypothetical code samples. ALWAYS follow official Syncfusion component design patterns. If a feature is not supported : Clearly state the limitation. Suggest a supported alternative when possible. 3. Interpreting Natural Language Requests When user requests are incomplete: Infer reasonable assumptions using official Grid best practices. Fill missing gaps with accurate and relevant information. Request clarification only when essential. 4. Response Quality Requirements Every response MUST: Be technically accurate Be complete and well‑structured Include required dependencies and configuration notes Follow real, documented Syncfusion API behavior Avoid contradictions or ambiguity 5. Handling Unsupported User Requests If the user asks for an unsupported capability: Explicitly state that it is not supported Suggest official alternatives or valid workarounds NEVER simulate or fabricate impossible functionality 6. Design Pattern Enforcement The Skill MUST follow Syncfusion official patterns, including: Correct component structure ( SfGrid , GridColumn , GridEditSettings , etc.) Proper async event and API usage Valid configuration properties and enums Supported data‑binding approaches Real event patterns and names 7. Quality, Completeness & Reliability The Skill MUST: Use only validated and real Grid capabilities Provide actionable and implementation‑ready guidance Ensure clarity so users can follow without guesswork Maintain clean, readable, and professional formatting 8. No Hallucination Safeguard The Skill MUST NOT: Invent non‑existent APIs or behavior Suggest unsupported modes, features, or configuration Provide incorrect, misleading, or unverifiable code Describe undocumented internal behavior If unsure: Ask for clarification OR Clearly state the limitation 9. Event Name Verification Requirement CRITICAL: Event names MUST be verified against references/events.md BEFORE providing code examples. All grid events MUST be defined inside the <GridEvents component Common Mistakes to Avoid: ❌ OnSortChange Does NOT exist. Use Sorting , Sorted instead ❌ OnFilterChange Does NOT exist. Use Filtering , Filtered instead ❌ OnPageChange Does NOT exist. Use PageChanging , PageChanged instead ❌ OnGroupChange Does NOT exist. Use Grouping , Grouped instead Rule: ALWAYS cross reference references/events.md for: Exact event names (case sensitive) Event argument types Whether events are cancelable When they fire (before/after operation) Verification Checklist Before Providing Event Code: 1. Check if event name exists in references/events.md 2. Verify the correct EventArgs type 3. Confirm Cancelable status (✅ or ❌) 4. Test against actual Syncfusion documentation 5. Never assume naming conventions (e.g., On prefix, Change suffix) Strict Rules for Grid Events 1. Event Handlers MUST be in <GridEvents Component ✅ Define ALL event handlers inside <GridEvents TValue="YourType" ✅ Use the exact event names as properties (e.g., DataBound , RowSelecting , Grouped ) ❌ DO NOT use @onEventName syntax on <SfGrid ❌ DO NOT define event handlers on any root element 2. Correct Event Handler Signatures ✅ Use async Task for event handlers ✅ Event handlers may have specific parameter types (e.g., GridEventArgs , RowSelectEventArgs ) ✅ Some events have no parameters (e.g., DataBound() , Created() ) ❌ Do not use synchronous void methods for async operations 3. API Method Calls MUST NOT be in Lifecycle Events ❌ DO NOT call API methods in OnInitialized() ❌ DO NOT call API methods in OnAfterRenderAsync() ❌ DO NOT call API methods in OnParametersSet() ✅ ONLY call API methods in response to user interactions (button clicks, dropdown changes, etc.) ✅ API methods CAN be called inside GridEvents handlers 4. Use Async/Await Pattern ✅ Always use await with async API methods ✅ Define event handlers as async Task ✅ Mark code block methods as async Task ❌ Do not use synchronous method calls for async operations 5. Grid Reference Required for API Calls ✅ Use @ref="Grid" to get the Grid instance ✅ Use the reference to call API methods (e.g., await Grid.GroupColumnAsync() ) ❌ Do not attempt to call methods without a reference 6. Event Types Must Match GridEvents TValue ✅ Set TValue="YourDataType" to match your data model ✅ All event handlers will be properly typed with this model ❌ Do not use generic or wrong type for TValue Navigation Guide Setup & Getting Started 📄 Read: [references/getting started.md](references/getting started.md) NuGet install, Imports.razor , Program.cs , theme/script setup, basic grid 📄 Read: [references/getting started app types.md](references/getting started app types.md) Server App, Web App (Auto/WASM), MAUI variants Data 📄 Read: [references/data binding.md](references/data binding.md) Local (List, ExpandoObject, DynamicObject, DataTable, ObservableCollection) Connecting to Adaptors (Remote Data) 📄 Read: [references/odatav4 adaptor.md](references/odatav4 adaptor.md) OData V4 service setup, ODataConventionModelBuilder, [EnableQuery], automatic $filter/$orderby/$skip/$top, CRUD with PATCH/DELETE 📄 Read: [references/web api adaptor.md](references/web api adaptor.md) Web API with { Items, Count } response, manual $filter/$orderby/$skip/$top QueryString parsing, CRUD with GET/POST/PUT/DELETE Security note: Do NOT bind SfDataManager.Url to arbitrary user supplied URLs. Use an operator configured string variable (for example Url="@DataApiUrl" where DataApiUrl is read from ALLOWED API URL in configuration), an internal proxy/gateway, field/operator whitelists, and server side validation/sanitization. See [references/web api adaptor.md](references/web api adaptor.md) Security Considerations for examples. 📄 Read: [references/url adaptor.md](references/url adaptor.md) Custom API with { result, count } response, DataManagerRequest POST body, DataOperations helpers, InsertUrl/UpdateUrl/RemoveUrl/CrudUrl/BatchUrl Security note: Use a configuration backed URL variable (for example Url="@DataApiUrl" where DataApiUrl is read from ALLOWED API URL in configuration), avoid user supplied endpoints, and route third party requests through an internal proxy/gateway. See [references/url adaptor.md](references/url adaptor.md) for examples and configuration snippets. 📄 Read: [references/custom adaptor.md](references/custom adaptor.md) DataAdaptor abstract class, override Read/Insert/Update/Remove/BatchUpdate, service injection, adaptor as component, custom parameters via Query.AddParams Security note: When implementing CustomAdaptor , do not trust dm.Params or user supplied endpoints. Use operator configured endpoints, validate dm.Params , whitelist fields/operators, and route third party calls through a proxy. See [references/custom adaptor.md](references/custom adaptor.md) Security Considerations for examples. Columns 📄 Read: [references/columns.md](references/columns.md) ColumnType, Format, TextAlign, frozen, reorder, resize, chooser, stacked headers, column menu, foreign key 📄 Read: [references/cell.md](references/cell.md) QueryCellInfo, CustomAttributes, ClipMode, GridLines, tooltips Sorting, Filtering, Searching 📄 Read: [references/sorting.md](references/sorting.md) AllowSorting, multi sort, SortColumnAsync, ClearSortingAsync 📄 Read: [references/filtering.md](references/filtering.md) AllowFiltering, FilterType (FilterBar/Menu/Excel/CheckBox), operators, FilterByColumnAsync 📄 Read: [references/searching.md](references/searching.md) Toolbar Search, SearchAsync, GridSearchSettings Grouping & Paging 📄 Read: [references/grouping.md](references/grouping.md) AllowGrouping, lazy load grouping, CaptionTemplate, programmatic group/ungroup 📄 Read: [references/paging.md](references/paging.md) AllowPaging, GridPageSettings, pager template, GoToPageAsync Scrolling 📄 Read: [references/scrolling.md](references/scrolling.md) Height/Width, sticky header, ScrollIntoViewAsync 📄 Read: [references/virtual scrolling.md](references/virtual scrolling.md) EnableVirtualization, EnableColumnVirtualization, OverscanCount, limitations 📄 Read: [references/infinite scrolling.md](references/infinite scrolling.md) EnableInfiniteScrolling, GridInfiniteScrollSettings, cache mode, limitations Editing 📄 Read: [references/editing.md](references/editing.md) GridEditSettings, EditMode (Normal/Dialog/Batch/CommandColumn), ValidationRules, EditType, EditTemplate, CRUD methods Read: [references/editing patterns.md](references/editing patterns.md) Cancel edit based on condition, disable editing for specific rows Provide new/edited item via events, default column values, new row position Always show add new row form, delete multiple rows, single click editing Save new row at a specific index, inline template editing 📄 Read: [references/editing validation.md](references/editing validation.md) Per column ValidationRules , Data Annotation attributes ( [Required] , [Range] , etc.) Custom validation attributes, complex type validation, custom validator component Selection 📄 Read: [references/selection.md](references/selection.md) AllowSelection, SelectionMode, SelectionType, checkbox selection, programmatic s

syncfusion-blazor-datagrid