CellRenderer Class
Definition
Base class for cell renderers that draw cell content directly without creating per-cell controls.
public class CellRenderer
Remarks
When a column has a Avalonia.Controls.CellRenderer, the Avalonia.Controls.Primitives.TreeDataGridCellsPresenter renders cells directly rather than creating individual control elements for each cell. This can significantly improve performance for columns that display simple content such as text.
This is an abstract class rather than an interface so that methods with defaults can be added in the future without breaking existing implementations.
Methods
| Name | Description |
|---|---|
| CommitEdit | Commits changes made to the edit control back to the model. |
| CreateEditControl | Creates an edit control when a drawn cell enters edit mode. |
| MeasureContent | Measures the content of a drawn cell. |
| RenderContent | Renders the content of a drawn cell. |
CommitEdit Method
Commits changes made to the edit control back to the model.
public void CommitEdit(Avalonia.Controls.Control editControl)
Parameters
editControl Avalonia.Controls.Control
The edit control.
CreateEditControl Method
Creates an edit control when a drawn cell enters edit mode.
public Avalonia.Controls.Control CreateEditControl(object dataContext)
Parameters
dataContext object
The row's data model.
Returns
The edit control, or null if not editable.
MeasureContent Method
Measures the content of a drawn cell.
public Avalonia.Size MeasureContent(Avalonia.Controls.Control owner, object dataContext, Avalonia.Size availableSize)
Parameters
owner Avalonia.Controls.Control
The presenter control (for reading inherited font properties).
dataContext object
The row's data model.
availableSize Avalonia.Size
Available size constraint.
Returns
The desired size of the cell content.
RenderContent Method
Renders the content of a drawn cell.
public void RenderContent(Avalonia.Controls.Control owner, Avalonia.Media.DrawingContext context, object dataContext, Avalonia.Rect bounds, bool isSelected)
Parameters
owner Avalonia.Controls.Control
The presenter control.
context Avalonia.Media.DrawingContext
The drawing context.
dataContext object
The row's data model.
bounds Avalonia.Rect
The cell bounds to render within.
isSelected bool
Whether the cell/row is selected.