GridFilterMenuDataItem Class

Defines an item in the column filter menu.

Namespace: DevExpress.Blazor

Assembly: DevExpress.Blazor.v23.2.dll

NuGet Package: DevExpress.Blazor

Declaration

public class GridFilterMenuDataItem

Remarks

The GridFilterMenuDataItem class implements the functionality of an individual item in the column filter menu. Handle the CustomizeFilterMenu event to access and customize the list of items (DataItems).

<DxGrid Data="@customers" 
        HeaderFilterButtonDisplayMode="GridHeaderFilterButtonDisplayMode.Always"
        CustomizeFilterMenu="OnCustomizeFilterMenu">
    <Columns>
        <DxGridDataColumn FieldName="ContactName" />
        <DxGridDataColumn FieldName="Company" />
        <DxGridDataColumn FieldName="Country" />
    </Columns>
</DxGrid>

@code {
    DateTime data { get; set; }
    private Customer[]? customers;
    protected override async Task OnInitializedAsync() {
        customers = await CustomerData.GetData();
    }
    void OnCustomizeFilterMenu (GridCustomizeFilterMenuEventArgs e) {
        if (e.DataColumn.FieldName == "ContactName") {
            e.DataItems.ForEach(di => {
                int? CustomerID = customers.Where(c => 
                    c.ContactName == di.Value.ToString()).FirstOrDefault()?.ID;
                di.DisplayText = di.DisplayText + " (ID " + CustomerID + ")";
            });
        }
    }
}

Inheritance

Object

GridFilterMenuDataItem