ant-design-blazor/components/auto-complete/AutoComplete.razor

@namespace AntDesign
@inherits AntInputComponentBase<string>
@typeparam TOption
@using AntDesign.Internal

<div @ref="@_divRef" style="@Style" id="@Id">
    <CascadingValue Value='$"ant-select-dropdown"' Name="PrefixCls">
        <OverlayTrigger @ref="_overlayTrigger"
                        Style="display: inline"
                        IsButton="@true"
                        Disabled="false"
                        Trigger="new TriggerType[] { TriggerType.Click }"
                        PopupContainerSelector="@PopupContainerSelector"
                        OverlayEnterCls="slide-up-enter slide-up-enter-active slide-up"
                        OverlayLeaveCls="slide-up-leave slide-up-leave-active slide-up"
                        OverlayClassName="@OverlayClassName"
                        OverlayStyle="@OverlayStyle"
                        OnVisibleChange="@OnOverlayTriggerVisibleChange">
            <Overlay>
                <CascadingValue Value="this">
                    @if (ShowPanel && !_isOptionsZero)
                    {
                        <div style="max-height: 256px; overflow-y: auto; overflow-anchor: none; @_minWidth">
                            <div style="display: flex;flex-direction: column;">

                                @if (OverlayTemplate != null)
                                {
                                    @OverlayTemplate
                                }
                                else
                                {
                                    @if (OptionTemplate != null)
                                    {
                                        @foreach (var option in GetOptionItems())
                                        {
                                            @OptionTemplate(option)
                                        }
                                    }
                                    else
                                    {
                                        @foreach (var option in GetOptionItems())
                                        {
                                            var label = OptionFormat == null ? option.Label : OptionFormat(option);
                                            <AutoCompleteOption Value="@option.Value" Label="@option.Label" Disabled="option.IsDisabled">
                                                @label
                                            </AutoCompleteOption>
                                        }
                                    }
                                }
                            </div>
                        </div>
                    }
                </CascadingValue>
            </Overlay>
            <ChildContent>
                <CascadingValue Value="this">
                    @if (ChildContent == null)
                    {
                        <AutoCompleteInput @bind-Value="@CurrentValue" Placeholder="@Placeholder" Disabled="@Disabled" />
                    }
                    else
                    {
                        @ChildContent
                    }
                </CascadingValue>
            </ChildContent>
        </OverlayTrigger>
    </CascadingValue>
</div>