Class GridCaptionSummaryCellRenderer

Represents a class that maintains the rendering of GridCaptionSummaryCell.

Inheritance
System.Object
GridCellRendererBase
GridVirtualizingCellRendererBase<GridCaptionSummaryCell, GridCaptionSummaryCell>
GridVirtualizingCellRenderer<GridCaptionSummaryCell, GridCaptionSummaryCell>
GridCaptionSummaryCellRenderer
Implements
System.IDisposable
Inherited Members
Namespace: Syncfusion.UI.Xaml.DataGrid.Renderers
Assembly: Syncfusion.Grid.WinUI.dll
Syntax
public class GridCaptionSummaryCellRenderer : GridVirtualizingCellRenderer<GridCaptionSummaryCell, GridCaptionSummaryCell>, IGridCellRenderer, IDisposable
Examples
this.sfDataGrid.CellRenderers.Remove("CaptionSummary");
this.sfDataGrid.CellRenderers.Add("CaptionSummary", new GridCaptionSummaryCellRendererExt());
public class GridCaptionSummaryCellRendererExt : GridCaptionSummaryCellRenderer
{
   public override void OnUpdateEditBinding(Syncfusion.UI.Xaml.DataGrid.DataColumnBase dataColumn, Syncfusion.UI.Xaml.DataGrid.GridCaptionSummaryCell element, object dataContext)
   {
       if (element.DataContext is Group && this.DataGrid.View.GroupDescriptions.Count > 0)
       {
           var groupRecord = element.DataContext as Group;
           var groupedColumn = this.GetGroupedColumn(groupRecord);

           if (this.DataGrid.CaptionSummaryRow == null)
           {

               if (this.DataGrid.View.GroupDescriptions.Count < groupRecord.Level)
                   return;

               //Set the CaptionSummaryCell text as customized.
               element.Content = GetCustomizedCaptionText(groupedColumn.HeaderText, groupRecord.Key, groupRecord.ItemsCount);
           }

           else if (this.DataGrid.CaptionSummaryRow.ShowSummaryInRow)
           {
               element.Content = SummaryCreator.GetSummaryDisplayTextForRow(groupRecord.SummaryDetails, this.DataGrid.View, groupedColumn.HeaderText);
           }

           else
              element.Content = SummaryCreator.GetSummaryDisplayText(groupRecord.SummaryDetails, dataColumn.GridColumn.MappingName, this.DataGrid.View);
       }
   }

   private GridColumn GetGroupedColumn(Group group)
   {
       var groupDesc = this.DataGrid.View.GroupDescriptions[group.Level - 1];

       foreach (var column in this.DataGrid.Columns)
       {

           if (column.MappingName == groupDesc.PropertyName)
           {
              return column;
           }
       }
       return null;
   }

   private string GetCustomizedCaptionText(string columnName, object groupName, int itemsCount)
   {

       //entryText - instead of "Items", the entryText is assigned to Customize the CaptionSummaryCell Text.
       string entryText = string.Empty;

       if (itemsCount < 20)
           entryText = "entries in the Group";

       else if (itemsCount < 40)
           entryText = "elements in the Group";

       else if (itemsCount < 60)
           entryText = "list in the Group";

       else
           entryText = "items in the Group";

       if (groupName.ToString().Equals("1001"))
           groupName = "Thousand and One";

       else if (groupName.ToString().Equals("1002"))
           groupName = "Thousand and Two";

       else if (groupName.ToString().Equals("1004"))
           groupName = "Thousand and Four";
       return string.Format("{0}: {1} - {2} {3}", columnName, groupName, itemsCount, entryText);
   }
}

Constructors

GridCaptionSummaryCellRenderer()

Initializes a new Instance of GridCaptionSummaryCellRenderer class.

Declaration
public GridCaptionSummaryCellRenderer()

Methods

InitializeCellStyle(DataColumnBase, Object)

Initializes the custom style for cell when the corresponding api's and selectors are used.

Declaration
protected override void InitializeCellStyle(DataColumnBase dataColumn, object record)
Parameters
Type Name Description
DataColumnBase dataColumn

Specifies the corresponding DataColumnBase.
System.Object record

Specifies the corresponding record to initialize cell style.
Overrides
Syncfusion.UI.Xaml.DataGrid.Renderers.GridVirtualizingCellRendererBase<Syncfusion.UI.Xaml.DataGrid.GridCaptionSummaryCell, Syncfusion.UI.Xaml.DataGrid.GridCaptionSummaryCell>.InitializeCellStyle(Syncfusion.UI.Xaml.DataGrid.DataColumnBase, System.Object)

OnInitializeEditElement(DataColumnBase, GridCaptionSummaryCell, Object)

Initializes the binding editor for corresponding column.

Declaration
public override void OnInitializeEditElement(DataColumnBase dataColumn, GridCaptionSummaryCell uiElement, object dataContext)
Parameters
Type Name Description
DataColumnBase dataColumn

Specifies the corresponding DataColumnBase.
GridCaptionSummaryCell uiElement

Specifies the corresponding UIElement.
System.Object dataContext

Specifies the dataContext of the cell.
Overrides
Syncfusion.UI.Xaml.DataGrid.Renderers.GridVirtualizingCellRenderer<Syncfusion.UI.Xaml.DataGrid.GridCaptionSummaryCell, Syncfusion.UI.Xaml.DataGrid.GridCaptionSummaryCell>.OnInitializeEditElement(Syncfusion.UI.Xaml.DataGrid.DataColumnBase, Syncfusion.UI.Xaml.DataGrid.GridCaptionSummaryCell, System.Object)

OnUpdateEditBinding(DataColumnBase, GridCaptionSummaryCell, Object)

Updates the binding for editor control of corresponding column.

Declaration
public override void OnUpdateEditBinding(DataColumnBase dataColumn, GridCaptionSummaryCell element, object dataContext)
Parameters
Type Name Description
DataColumnBase dataColumn

Specifies the corresponding DataColumnBase.
GridCaptionSummaryCell element

Specifies the corresponding GridCaptionSummaryCell.
System.Object dataContext

Specifies the data context of the cell.
Overrides
Syncfusion.UI.Xaml.DataGrid.Renderers.GridVirtualizingCellRenderer<Syncfusion.UI.Xaml.DataGrid.GridCaptionSummaryCell, Syncfusion.UI.Xaml.DataGrid.GridCaptionSummaryCell>.OnUpdateEditBinding(Syncfusion.UI.Xaml.DataGrid.DataColumnBase, Syncfusion.UI.Xaml.DataGrid.GridCaptionSummaryCell, System.Object)

Implements

System.IDisposable