ant-design-blazor/components/tooltip/Tooltip.razor

@namespace AntDesign
@inherits OverlayTrigger

@using AntDesign.Internal

@if (ChildContent != null)
{
<div class="@ClassMapper.Class" @ref="@Ref" Id="@Id" style="display: inline-block; @Style"
     @onclick="OnClickDiv"
     @onmouseenter="OnTriggerMouseEnter"
     @onmouseleave="OnTriggerMouseLeave"
     @oncontextmenu="OnTriggerContextmenu"
     @onfocusin="OnTriggerFocusIn"
     @onfocusout="OnTriggerFocusOut"
     @oncontextmenu:preventDefault>
    @ChildContent
</div>
}
@if (Unbound != null)
{
    @Unbound(RefBack)
}

<CascadingValue Value="this" Name="Trigger">
    <CascadingValue Value="@ArrowPointAtCenter" Name="ArrowPointAtCenter">
        <Overlay @ref="_overlay"
                 HideMillisecondsDelay="10"
                 WaitForHideAnimMilliseconds="100"
                 OnOverlayMouseEnter="OnOverlayMouseEnter"
                 OnOverlayMouseLeave="OnOverlayMouseLeave"
                 OnOverlayMouseUp="OnOverlayMouseUp">
            @if (Title.Value != null)
            {
                <div class="ant-tooltip-content">
                    <div class="ant-tooltip-arrow">
                        <span class="ant-tooltip-arrow-content"></span>
                    </div>
                    <div class="ant-tooltip-inner" role="tooltip">
                        @if (Title.IsT0 && !string.IsNullOrWhiteSpace(Title.AsT0))
                        {
                            @Title.AsT0
                        }
                        else if (Title.IsT1)
                        {
                            @Title.AsT1
                        }
                        else if (Title.IsT2)
                        {
                            @Title.AsT2
                        }
                    </div>
                </div>
            }
        </Overlay>
    </CascadingValue>
</CascadingValue>