/// <summary>
/// Get current form when inside a partial view.
/// </summary>
/// <typeparam name="TPartialViewModel">View model of the partial view</typeparam>
/// <param name="partial">View page for partial view</param>
/// <returns>Current form</returns>
public static IForm <TPartialViewModel> Form <TPartialViewModel>(this WebViewPage <TPartialViewModel> partial)
{
object currentForm;
if (!partial.ViewData.TryGetValue(CurrentFormViewDataKey, out currentForm))
{
throw new InvalidOperationException("Not currently inside a form section.");
}
return((currentForm as IForm).CreatePartialForm(partial.PartialModelExpression(), partial.Html));
}
