Class GridUnboundCellRenderer

Represents the class that used for drawing the GridUnboundColumn cells.

Inheritance
System.Object
GridCellRendererBase
GridVirtualizingCellRendererBase<System.Windows.Forms.TextBox>
GridTextBoxCellRenderer
GridUnboundCellRenderer
Implements
System.IDisposable
Inherited Members
System.Object.ToString()
System.Object.Equals(System.Object)
System.Object.Equals(System.Object, System.Object)
System.Object.ReferenceEquals(System.Object, System.Object)
System.Object.GetHashCode()
System.Object.GetType()
System.Object.MemberwiseClone()
Namespace: Syncfusion.WinForms.DataGrid.Renderers
Assembly: Syncfusion.SfDataGrid.WinForms.dll
Syntax
public class GridUnboundCellRenderer : GridTextBoxCellRenderer, IGridCellRenderer<TableControl>, IDisposable
Examples

The following example shows how to replace the custom cell renderer.

// Remove the existing unbound cell renderer and add the custom cell renderer.
sfDataGrid1.CellRenderers.Remove("Unbound");
sfDataGrid1.CellRenderers.Add("Unbound", new CustomUnboundCellRenderer());

// Implementation for custom unbound cell render.
public class CustomUnboundCellRenderer : GridUnboundCellRenderer
{
   protected override void OnEditingComplete(DataColumnBase dataColumn, TextBox currentRendererElement)
    {
        base.OnEditingComplete(dataColumn, currentRendererElement);
    }

   protected override void OnInitializeEditElement(DataColumnBase column, RowColumnIndex rowColumnIndex, TextBox uiElement)
   {
       base.OnInitializeEditElement(column, rowColumnIndex, uiElement);
       uiElement.BackColor = Color.Green;
   }
}

Constructors

GridUnboundCellRenderer()

Declaration
public GridUnboundCellRenderer()

Methods

GetEditorUIElementBounds()

Overriden to get the proper editor element bounds.

Declaration
protected override Rectangle GetEditorUIElementBounds()
Returns
Type Description
System.Drawing.Rectangle

Returns the editor element bounds.
Overrides

OnEditingComplete(DataColumnBase, TextBox)

When complete edit, we need to raise query again to provide entered value to customer.

Declaration
protected override void OnEditingComplete(DataColumnBase dataColumn, TextBox currentRendererElement)
Parameters
Type Name Description
DataColumnBase dataColumn

DataColumn which holds GridColumn, RowColumnIndex and GridCell
System.Windows.Forms.TextBox currentRendererElement

The UIElement that resides in GridUnboundCell
Overrides
Syncfusion.WinForms.DataGrid.Renderers.GridVirtualizingCellRendererBase<System.Windows.Forms.TextBox>.OnEditingComplete(Syncfusion.WinForms.DataGrid.DataColumnBase, System.Windows.Forms.TextBox)

OnInitializeEditElement(DataColumnBase, RowColumnIndex, TextBox)

Overriden to initialize the text box as editor control of the cell.

Declaration
protected override void OnInitializeEditElement(DataColumnBase column, RowColumnIndex rowColumnIndex, TextBox uiElement)
Parameters
Type Name Description
DataColumnBase column

The DataColumnBase of the current cell.
RowColumnIndex rowColumnIndex

The row and column index of the current cell.
System.Windows.Forms.TextBox uiElement

The text box of the current cell.
Overrides

OnRender(Graphics, Rectangle, String, CellStyleInfo, DataColumnBase, RowColumnIndex)

Overridden to draw the unbound column cell.

Declaration
protected override void OnRender(Graphics paint, Rectangle cellRect, string cellValue, CellStyleInfo style, DataColumnBase column, RowColumnIndex rowColumnIndex)
Parameters
Type Name Description
System.Drawing.Graphics paint

The System.Drawing.Graphics that used to draw the cell.
System.Drawing.Rectangle cellRect

The bounds of the cell.
System.String cellValue

The value of the cell.
CellStyleInfo style

The CellStyleInfo of the cell.
DataColumnBase column

The DataColumnBase of the cell.
RowColumnIndex rowColumnIndex

The row and column index of the cell.
Overrides

Implements

System.IDisposable