Question

我在AjaxFileUpload1的pageupload事件期间从页面上的文本框中为变量赋值。问题是，即使没有错误抛出，我也没有从文本框中获取值到我的变量。我变量是

    string scn = txtSCN.Text;
    string line1 = txtLineitem.Text;
    string aging1 = txtAging.Text;

知道为什么AjaxFileUpload1_UploadComplete无法读取文本框值

我的cs代码是：

protected void AjaxFileUpload1_UploadComplete(object sender, AjaxControlToolkit.AjaxFileUploadEventArgs e)
{
    string c = System.IO.Path.GetFileName(e.FileName);
    string dpath = "~/Profile/Images/";
    string scn = txtSCN.Text;
    string line1 = txtLineitem.Text;
    string aging1 = txtAging.Text;             
    AjaxFileUpload1.SaveAs(MapPath(Path.Combine(dpath,c)));
    dpath = dpath + c;
    string str1 = ConfigurationManager.ConnectionStrings["ProTracConnGMCH"].ConnectionString;
    SqlConnection cn = new SqlConnection(str1);
    cn.Open();
    string sql = "Update tbNoquoteFollowupupdate set MailreceivedURL = '" + dpath + "', chkMailreceived = 1 , Buyername =  '" + buyername + "'  where scn = '" + scn + "' AND lineItem = '" + line1 + "' and Aging ='" + aging1 + "' ";
    SqlCommand cmd = new SqlCommand(sql, cn);
    int i = cmd.ExecuteNonQuery();

    if (i > 0)
    {
        // AjaxFileUpload1.SaveAs(Path.Combine(dpath, e.FileName));
        //AjaxFileUpload1.SaveAs(MapPath(dpath));
    }
    cn.Close();
    BindGridviewData1();
    cn.Open();
    string cmd2 = "Insert Into tbMulitmailsreived (scn, lineItem,followupdate, Aging,MailreceivedURL) Values ('" + scn + "', '" + line1 + "','" + DateTime.Now + "','" + aging1 + "','" + dpath + "')";
    SqlCommand sqlCommand2 = new SqlCommand(cmd2, cn);
    sqlCommand2.ExecuteNonQuery();
    cn.Close();
}

Answer 1

请将文本框中的值放入会话中，因为您可以从UpLoadComplete访问会话变量，所有内容都将以这种方式运行。

Answer 2

您可以自定义AjaxFileUpload控件并将文本框值传递给UploadCompleted事件处理程序，如下所示：

function uploadStarted(sender, args) {
     var latitude = $get("<%= tbUploaderLat.ClientID %>").value;
     var longitude = $get("<%= tbUploaderLon.ClientID %>").value;
     sender.contextKeys = { "latitude": latitude, "longitude": longitude };
}

在那之后，你可以得到纬度＆amp; UploadComplete处理程序中的经度值：

    protected void AjaxFileUpload1_OnUploadComplete(object sender, AjaxFileUploadEventArgs file)
    {
       if (!string.IsNullOrEmpty(file.ContextKeys))
       {
            var longLat = new     System.Web.Script.Serialization.JavaScriptSerializer().Deserialize<Dictionary<string,   string>>(file.ContextKeys);
           var longitude = longLat["longitude"];
           var latitude = longLat["latitude"];
       }

       //code to save file

   }

如何从Ajaxfileupolad控件中读取文本框的值

2 个答案: