I've tried solving this out and researching for weeks and i still can't get it to work. My code is to simply upload images and then save it in the database without postback.
As of now, I used AjaxFileUpload to upload images. My plan was to get the uploaded filename in AjaxFileUpload using javascript and then store it in a hiddenfield. And then when the admin clicks submit, it will get the value that was stored in the hiddenfield and then save it in the database(using the query that i have created in my code-behind).
The problem is, it will always return empty. I hope you guys can really help me on this one.
What I have tried:
Here is the code for the aspx:
<%@ Page Language="C#" AutoEventWireup="true"
CodeFile="CreateBrands.aspx.cs" Inherits="Pages_CreateBrands" %>
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit"
TagPrefix="asp"%>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>Music Store</title>
<script src="../Javascript/jquery-1.11.2.min.js"></script>
<link rel="stylesheet" href="~/Styles/jquery.bxslider.css"/>
<link rel="shortcut icon" type="image/png" href="~/Images/rockSign.png"/>
<script type="text/javascript">
function abc() {
var elem1 = document.getElementById('<%# itemFileUpload1.ID %>').value;
document.getElementById('HiddenInput1') = elem1;
var elem2 = document.getElementById('<%# itemFileUpload1.ID %>').value;
document.getElementById('HiddenInput2') = elem2;
}
</script>
</head>
<body>
<form id="form1" runat="server">
<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
<div id="wrapper">
<h1>Item Image1:</h2>
<br />
<asp:AjaxFileUpload ID="itemFileUpload1" runat="server"
Width="300px" OnUploadComplete="itemUploadImage1"
OnClientUploadComplete="abc"/>
<input type="hidden" id="HiddenInput1" name="HiddenInput" value="" />
<h1>Item Image2:</h2>
<br />
<asp:AjaxFileUpload ID="itemFileUpload2" runat="server"
Width="300px" OnUploadComplete="itemUploadImage2"
OnClientUploadComplete="abc"/>
<input type="hidden" id="HiddenInput2" name="HiddenInput" value="" />
<br/>
<asp:Label ID="lblResult2" runat="server" Text=""></asp:Label>
<br />
<asp:Button ID="Button1" runat="server" CssClass="submitButton"
Text="Save Item" OnClick="Button1_Click"/>
</div>
</form>
</body>
</html>
And here is the code for the aspx.cs:
protected void itemUploadImage1(object sender, AjaxFileUploadEventArgs e)
{
string filename = Path.GetFileName(e.FileName);
itemFileUpload1.SaveAs(Server.MapPath("~/Images/Brands/String Instrument Items/Guitar/") + filename);
}
protected void itemUploadImage2(object sender, AjaxFileUploadEventArgs e)
{
string filename = Path.GetFileName(e.FileName);
itemFileUpload2.SaveAs(Server.MapPath("~/Images/Brands/String Instrument Items/Guitar/") + filename);
}
protected void Button1_Click(object sender, EventArgs e)
{
try {
string item_image1 = Request.Form["HiddenInput1"];
string item_image2 = Request.Form["HiddenInput2"];
ConnectionClassGuitarItems.AddStringInstrumentItems(item_image1,item_image2);
lblResult2.Text = "Upload successful!" + item_image1 + " and " + item_image2;
ClearTextFields2();
}
catch (Exception ex)
{
lblResult2.Text = ex.Message;
}
}
Notice the the Button1_Click, I try to access the value of HiddenInput1 and HiddenInput2 but it seems like they are empty.