@namespace Oqtane.Themes.Controls
@inherits ThemeControlBase

@if (Parent.ActivePage == (TabPage)(object)this)
{
    @ChildContent
}

@code {
    [CascadingParameter]
    private TabControl Parent { get; set; }

    [Parameter]
    public RenderFragment ChildContent { get; set; }

    [Parameter]
    public string Text { get; set; }

    protected override void OnInitialized()
    {
        if (Parent == null)
            throw new ArgumentNullException(nameof(Parent), "TabPage must exist within a TabControl");

        base.OnInitialized();
        Parent.AddPage((TabPage)(object)this);
    }
}