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V25.1
  • DxTreeList.GetVisibleRowCount() Method

    Returns the total number of visible rows in the TreeList.

    Namespace: DevExpress.Blazor

    Assembly: DevExpress.Blazor.v25.1.dll

    NuGet Package: DevExpress.Blazor

    Declaration

    public int GetVisibleRowCount()

    Returns

    Type Description
    Int32

    The number of visible rows.

    Remarks

    The GetVisibleRowCount method returns the number of visible rows displayed in all TreeList pages. This number does not include filtered out rows and child rows of collapsed items.

    @inject EmployeeTaskService EmployeeTaskService
    
    <style>
        .my-button{
            width:200px;
        }
    </style>
    
    <DxTreeList @ref="MyTreeList"
                Data="TreeListData"
                KeyFieldName="Id"
                ParentKeyFieldName="ParentId">
        <Columns>
            <DxTreeListDataColumn FieldName="Name" Caption="Task" />
            <DxTreeListDataColumn FieldName="EmployeeName" />
            <DxTreeListDataColumn FieldName="StartDate" />
            <DxTreeListDataColumn FieldName="DueDate" />
        </Columns>
    </DxTreeList>
    <p />
    <DxButton Click="OnGetVisibleRowCount" Text="Get Visible Row Count" CssClass="my-button"/>
    <p />
    @Alert
    
    @code {
        List<EmployeeTask> TreeListData { get; set; }
        ITreeList MyTreeList { get; set; }
        string Alert { get; set; }
    
        protected override void OnInitialized() {
            TreeListData = EmployeeTaskService.GenerateData();
        }
        void OnGetVisibleRowCount() {
            int count = MyTreeList.GetVisibleRowCount();
            Alert = "The visible row count equals " + count;
        }
    }
    

    TreeList - Get Visible Row Count

    For more information about paging in the TreeList component, refer to the following topic: Paging in Blazor TreeList.

    See Also