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V25.1
  • TreeListFocusedRowChangedEventArgs.VisibleIndex Property

    Returns the visible index of the focused row.

    Namespace: DevExpress.Blazor

    Assembly: DevExpress.Blazor.v25.1.dll

    NuGet Package: DevExpress.Blazor

    Declaration

    public int VisibleIndex { get; }

    Property Value

    Type Description
    Int32

    If a data row is focused, the property returns this row’s visible index. The property returns -1 if a new row is focused or the TreeList displays no rows.

    Remarks

    The following example displays the focused row’s visible index:

    @inject EmployeeTaskService EmployeeTaskService
    
    <DxTreeList Data="TreeListData"
                KeyFieldName="Id"
                ParentKeyFieldName="ParentId"
                FocusedRowEnabled="true"
                FocusedRowChanged="e => rowNumber = e.VisibleIndex + 1">
        <Columns>
            <DxTreeListDataColumn FieldName="Name" Caption="Task" />
            <DxTreeListDataColumn FieldName="EmployeeName" />
            <DxTreeListDataColumn FieldName="StartDate" />
            <DxTreeListDataColumn FieldName="DueDate" />
        </Columns>
    </DxTreeList>
    <text>The focused row number is @rowNumber</text>
    @code {
        List<EmployeeTask> TreeListData { get; set; }
        int rowNumber { get; set; }
    
        protected override void OnInitialized() {
            TreeListData = EmployeeTaskService.GenerateData();
        }
    }
    

    Refer to the TreeListFocusedRowChangedEventArgs class description for more information.

    See Also