TreeListColumnFooterTemplateContext Class
Stores information about a footer cell in the TreeList and is passed as the context
parameter to the DxTreeList.ColumnFooterTemplate and DxTreeListColumn.FooterTemplate.
Namespace: DevExpress.Blazor
Assembly: DevExpress.Blazor.v24.2.dll
NuGet Package: DevExpress.Blazor
#Declaration
public class TreeListColumnFooterTemplateContext :
GridColumnFooterTemplateContextBase
#Remarks
The DxTreeList.ColumnFooterTemplate and DxTreeListColumn.FooterTemplate accept a TreeListColumnFooterTemplateContext
object as the context
parameter. You can use the parameter’s members to get information about the current footer cell.
The following code snippet applies italic formatting to all summary values:
@inject EmployeeTaskService EmployeeTaskService
<DxTreeList Data="TreeListData" KeyFieldName="Id" ParentKeyFieldName="ParentId">
<Columns>
<DxTreeListDataColumn FieldName="Name" Caption="Task" />
<DxTreeListDataColumn FieldName="EmployeeName" />
<DxTreeListDataColumn FieldName="StartDate" />
<DxTreeListDataColumn FieldName="DueDate" />
<DxTreeListDataColumn FieldName="Status" Caption="Progress" DisplayFormat="p0" />
</Columns>
<TotalSummary>
<DxTreeListSummaryItem SummaryType="TreeListSummaryItemType.Count" FieldName="Name" />
<DxTreeListSummaryItem SummaryType="TreeListSummaryItemType.Min" FieldName="DueDate" ValueDisplayFormat="y" />
<DxTreeListSummaryItem SummaryType="TreeListSummaryItemType.Max" FieldName="DueDate" ValueDisplayFormat="y" />
<DxTreeListSummaryItem SummaryType="TreeListSummaryItemType.Avg" FieldName="Status" />
</TotalSummary>
<ColumnFooterTemplate>
@{
var summaryItems = context.SummaryItems;
if (summaryItems.Any()) {
foreach (var i in summaryItems) {
@context.TreeList.GetTotalSummaryLabel(i)
<text>: </text>
<i>@context.TreeList.GetTotalSummaryFormattedValue(i)</i> <br />
}
}
}
</ColumnFooterTemplate>
</DxTreeList>
@code {
List<EmployeeTask> TreeListData { get; set; }
protected override void OnInitialized() {
TreeListData = EmployeeTaskService.GenerateData();
}
}