/// <summary>
/// 使管理器切换到下一页。
/// </summary>
/// <param name="changePage">页面切换的方法。</param>
/// <param name="callback">页面切换成功的回调方法。</param>
/// <returns>一个值，指示操作是否成功。</returns>
public virtual bool NextPage(ChangePageHandler changePage, CallbackHandler callback = null)
{
if (changePage == null)
{
throw new ArgumentNullException(nameof(changePage));
}
CancelArgs e = new CancelArgs();
this.page = changePage(this.page, e);
if (!e.Cancel)
{
this.page.Initialize();
callback?.Invoke(this.page, e);
return(!e.Cancel);
}
else
{
return(false);
}
}
//int _currentPageNumber;
/*protected async override Task OnInitializedAsync()
* {
* var rx_EndUri = new Regex(@"[1-9][0-9]*$");
* MatchCollection matches = rx_EndUri.Matches(NavigationManager.Uri);
* string str = matches.First().Value;
* bool isParsable = int.TryParse(str, out _currentPageNumber);
* CurrentPageNumber = _currentPageNumber;
* }*/
void ChangePage(int pageNumber)
{
NavigationManager.NavigateTo("/list/" + pageNumber);
//CurrentPageNumber = pageNumber;
ChangePageHandler.InvokeAsync(pageNumber);
}
