# Grids

Core grid system built on DevExpress `DxGrid`. For the full technical reference see `AyCode.Blazor.Components/docs/MGGRID/README.md`.

## Key Files

- **`MgGridBase.cs`** — `MgGridBase<TSignalRDataSource, TDataItem, TId, TLoggerClient>`, the main abstract grid component. Extends `DxGrid` with SignalR CRUD, layout persistence, master-detail hierarchy, edit state tracking, fullscreen toggle.
- **`MgGridWithInfoPanel.razor`** — `DxSplitter` wrapper: grid (left) + InfoPanel (right), fullscreen overlay, splitter size persistence.
- **`MgGridToolbarBase.cs`** — Extends `DxToolbar` with `Grid`, `RefreshClick`, and `ShowOnlyIcon` parameters.
- **`MgGridToolbarTemplate.razor`** — Full toolbar template: New/Edit/Delete/Save/Cancel, row navigation, layout menu (Load/Save/Reset), column chooser, export, reload, fullscreen. Extensible via `ToolbarItemsExtended`.
- **`MgGridDataColumn.cs`** — Extends `DxGridDataColumn` with InfoPanel parameters (`ShowInInfoPanel`, `InfoPanelOrder`, `InfoPanelDisplayFormat`) and `UrlLink` template with `{Property}` placeholder substitution via compiled accessors.
- **`MgGridInfoPanel.razor`** / **`.razor.cs`** — `MgGridInfoPanel` implementing `IInfoPanelBase`. Responsive column layout (1-4 columns with breakpoints), edit/view mode with typed editors, template system, sticky positioning via JS interop.
- **`MgGridSignalRDataSource.cs`** — `GridCustomDataSource` wrapping `AcSignalRDataSource`. Local cache for seen filter criteria, background refresh.
- **`GridEditMode.cs`** — `MgGridEditState` enum: `None`, `New`, `Edit`.
- **`MgGridHelper.cs`**, **`MgGridToolbarHelper.cs`**, **`MgGridInfoPanelHelper.cs`** — Placeholder helpers (empty).