上傳後顯示圖片

Question

我用這篇文章上傳後沒有刷新頁面顯示圖像。
Display image after upload without page refresh or postback using ASP.Net AsyncFileUpload Control
我定製FileUploadComplete，因爲我要爲上傳的文件創建名稱：

protected void FileUploadComplete(object sender, EventArgs e) 
{ 
    string filename = System.IO.Path.GetFileName(AsyncFileUpload1.FileName); 
    filename = Uploader.CreateNameForFile(filename); 
    AsyncFileUpload1.SaveAs(Server.MapPath(this.UploadFolderPath) + filename); 
    Session["image"] = filename; 
} 

後，我改變了代碼，圖像不上傳後顯示。
我該怎麼辦？

Answer 1

你必須有JavaScript進行這樣的場景：

從後面的代碼

URL =位置保存的圖像文件

ScriptManager.RegisterClientScriptBlock(Me, Me.GetType(), "image", "top.$get(""" & _img.ClientID & """).src = '" & url & "';", True) 

Display image after upload without page refresh or postback using ASP.Net AsyncFileUpload Control 展示瞭如何從客戶端做