ant-design-blazor/components/tabs/TabPane.razor

@namespace AntDesign
@inherits AntDomComponentBase

@if (Pane?.Key != Key || IsEmpty)
{
    return;
}

@if (IsTab)
{
    var ondragoverPreventDefault = IsActive;
    var onclickStopPropagation = !IsActive;

    <div @key="Pane?.Key"
     @ref="Pane.TabBar"
     @onclick:stopPropagation="@onclickStopPropagation"
     @onclick="@(e => Parent.HandleTabClick(Pane))"
     @ondragover:preventDefault="@ondragoverPreventDefault"
     @ondragstart="@(e => Parent.HandleDragStart(e, Pane))"
     @ondrop="@(_ => Parent.HandleDrop(Pane))"
     aria-controls="@($"rc-tabs-{Id}-tab-{Key}")"
     aria-selected="@(Pane?.IsActive)"
     class="@Pane.ClassMapper.Class"
     draggable="@Parent.Draggable.ToString()"
     id="@($"rc-tabs-{Id}-tab-{Key}")"
     ondragover="event.preventDefault();">
        <div role="tab" aria-selected="false" class="ant-tabs-tab-btn" tabindex="0">
            @if (TabTemplate != null)
            {
                @TabTemplate
            }
            else
            {
                @Tab
            }
        </div>
        @if (Parent.Type == TabType.EditableCard && Closable)
        {
            <button type="button" aria-label="remove" tabindex="0" class="ant-tabs-tab-remove" @onclick="(e) => Parent.RemoveTabPane(Pane)" @onclick:stopPropagation="true">
                <Icon Type="close" />
            </button>
        }
    </div>
}
else if (IsPane)
{
    if (Pane.IsActive || Pane.ForceRender || Pane.HasRendered)
    {
        Pane.HasRendered = true;

        <div @key="Pane?.Key"
     tabindex="@(IsActive ? "0" : "-1")"
     class="ant-tabs-tabpane @(Pane.IsActive ? "ant-tabs-tabpane-active" : "")"
     id="@($"rc-tabs-{Id}-panel-{Key}")"
     role="tabpanel" aria-hidden="@(Pane.IsActive ? "false" : "true")"
     aria-labelledby="@($"rc-tabs-{Id}-panel-{Key}")"
     style="@(Pane.IsActive ? "" : "display: none;")">

            @ChildContent
        </div>
    }
}