1
创建一个具有“异步文件上传”控件的自定义控件。 但是,当我试图添加异步FileUpload控件不能添加获取Complie时间错误。 以下是我的代码AsyncFileUpload动态添加自定义控件
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using AjaxControlToolkit;
using System.Web.UI;
using System.Web.UI.WebControls;
namespace SBITS.CustomControl
{
class CustomFileUpload:CompositeControl
{
private AsyncFileUpload asyncFileUpload;
private Image throbberImage;
protected override void CreateChildControls()
{
this.throbberImage = new Image();
this.throbberImage.ImageUrl = Constant.THROBBER_IMAGE_PATH;
this.Controls.Add(throbberImage);
this.asyncFileUpload = new AsyncFileUpload();
this.asyncFileUpload.ThrobberID = throbberImage.ID;
this.Controls.Add(asyncFileUpload);
}
} }
在这一行越来越错误
this.Controls.Add(asyncFileUpload);
错误屏幕
编译时错误
VS遇到无效参数错误时会产生一对错误消息。第二条消息告诉接收的类型方法以及它期望接收的类型。你也可以显示这个编译器错误吗? –