I am using a custom Http Handler as described at http://www.telerik.com/forums/radasyncupload-without-temporary-file to upload files directly to a database without using a temporary folder. This is working correctly, however, if the user clicks 'cancel' or 'remove' the file is obviously not removed from my database.
Is there a way to override the cancel and remove operations so I can delete the files from my database?
I've created a new class that inherits from AsyncUploadResult to add a FileID so this should be easy... if I just knew which fuction to override. Thanks!
3 Answers, 1 is accepted
0
Hi Michael,
RadAsyncUpload cannot remove uploaded file automatically. That's why you can create webservice which do that. Use jQuery to attach click event to "Cancel/Remove" buttons and call the service.
Regards,
Hristo Valyavicharski
Telerik
RadAsyncUpload cannot remove uploaded file automatically. That's why you can create webservice which do that. Use jQuery to attach click event to "Cancel/Remove" buttons and call the service.
Regards,
Hristo Valyavicharski
Telerik
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Michael
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answered on 11 Sep 2015, 02:02 PM
In order to not re-invent the wheel, do you have any example code for attaching a jquery event to attach to these buttons in order to call a webservice?
0
Sample with web method:
I hope this helps.
Regards,
Hristo Valyavicharski
Telerik
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="Default" %><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head runat="server"> <title></title> <telerik:RadStyleSheetManager ID="RadStyleSheetManager1" runat="server" /></head><body> <form id="form1" runat="server"> <telerik:RadScriptManager ID="RadScriptManager1" runat="server"> <Scripts> <asp:ScriptReference Assembly="Telerik.Web.UI" Name="Telerik.Web.UI.Common.Core.js" /> <asp:ScriptReference Assembly="Telerik.Web.UI" Name="Telerik.Web.UI.Common.jQuery.js" /> <asp:ScriptReference Assembly="Telerik.Web.UI" Name="Telerik.Web.UI.Common.jQueryInclude.js" /> </Scripts> </telerik:RadScriptManager> <script type="text/javascript"> function fileRemoving(sender, args) { $.ajax({ type: "POST", url: "Default.aspx/Remove", contentType: "application/json; charset=utf-8", dataType: "json", success: OnSuccess, failure: function (response) { alert(response.d); } }); } function OnSuccess(response) { alert(response.d); } </script> <div> <telerik:RadAsyncUpload runat="server" ID="RadAsyncUpload1" OnClientFileUploadRemoving="fileRemoving"></telerik:RadAsyncUpload> </div> </form></body></html>using System;using System.Web;using System.Web.Services;using System.Web.UI;using System.Web.UI.WebControls;using System.Data;using System.Configuration;using System.Web.Security;using System.Web.UI.WebControls.WebParts;using System.Web.UI.HtmlControls;using Telerik.Web.UI;using System.Web.Script.Services;public partial class Default : System.Web.UI.Page { [WebMethod] [ScriptMethod] public static int Remove() { // SQL query that removes file from the DB return 200; }}I hope this helps.
Regards,
Hristo Valyavicharski
Telerik
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