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V25.1
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    DxTreeListDataColumn.FilterMenuTemplate Property

    Specifies a template used to display the column’s filter menu.

    Namespace: DevExpress.Blazor

    Assembly: DevExpress.Blazor.v25.1.dll

    NuGet Package: DevExpress.Blazor

    #Declaration

    #Property Value

    Type Description
    RenderFragment<TreeListDataColumnFilterMenuTemplateContext>

    The template content.

    #Remarks

    Use the FilterMenuTemplate property to define a template for the column filter menu.

    The template accepts a TreeListDataColumnFilterMenuTemplateContext object as the context parameter. This parameter allows you to do the following:

    Note

    The GetDataItemsAsync() method cannot obtain unique values from a column whose data items do not implement IComparable type. If you call the method for such a column, an error may occur.

    To define a common column filter menu template for all TreeList columns, use the DxTreeList.DataColumnFilterMenuTemplate property.

    Run Demo: Column Filter Menu

    The following example displays the Start Date filter menu as a ListView:

    Razor
    <DxTreeList Data="Data"
                KeyFieldName="Id"
                ParentKeyFieldName="ParentId"
                FilterMenuButtonDisplayMode="TreeListFilterMenuButtonDisplayMode.Always"
                CustomizeFilterMenu="TreeList_CustomizeFilterMenu"
                CssClass="max-h-480">
        <Columns>
            <DxTreeListDataColumn FieldName="Name" Caption="Task" />
            <DxTreeListDataColumn FieldName="EmployeeName" Caption="Assigned To" TextAlignment="TreeListTextAlignment.Left" />
            <DxTreeListDataColumn FieldName="StartDate" Width="150px">
                <FilterMenuTemplate>
                    @context.ListView
                </FilterMenuTemplate>
            </DxTreeListDataColumn>
            <DxTreeListDataColumn FieldName="DueDate" Width="150px" />
        </Columns>
    </DxTreeList>
    

    Filter Menu - Plain List

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

    #Implements

    See Also