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Version Q2 2011 released 07/12/2011
select

AsyncUpload / Custom Handler


  • Select an image to upload.

Source Code

C# VB.NET
Show code in new window Demo isolation steps
  • <%@ Page Language="VB" AutoEventWireup="true" CodeFile="DefaultVB.aspx.vb" Inherits="Upload_ImageUploader_DefaultVB" %>

    <%@ Register TagPrefix="telerik" Namespace="Telerik.Web.UI" Assembly="Telerik.Web.UI" %>
    <%@ Register TagPrefix="qsf" Namespace="Telerik.QuickStart" %>
    <%@ Register TagPrefix="qsf" TagName="Header" Src="~/Common/Header.ascx" %>
    <%@ Register TagPrefix="qsf" TagName="HeadTag" Src="~/Common/HeadTag.ascx" %>
    <%@ Register TagPrefix="qsf" TagName="Footer" Src="~/Common/Footer.ascx" %>
    <!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 id="Head1" runat="server">
        <title></title>
        <qsf:HeadTag runat="server" ID="Headtag1" />
        <link href="Styles.css" rel="Stylesheet" type="text/css" />
    </head>
    <body class="BODY">
        <form id="form1" runat="server">
        <qsf:Header runat="server" ID="Header1" NavigationLanguage="VB" />
        <telerik:RadScriptManager ID="ScriptManager1" 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">
        //<![CDATA[
            function fileUploaded(sender, args) {
                var id = args.get_fileInfo().ImageID;
                $(".imageContainer")
                    .empty()
                    .append($("<img />")
                            .attr("src", getImageUrl(id)));
               
                $(".info")
                    .html(String.format("<strong>{0}</strong> succesfully insterted. Record ID - {1}", args.get_fileName(), id));

            }

            function getImageUrl(id) {
                var url = window.location.href;
                var handler = "StreamImage.ashx?imageID=" + id;
                var index = url.lastIndexOf("/");
                var completeUrl = url.substring(0, index + 1) + handler;
                return completeUrl
            }

            function fileUploadRemoving(sender, args) {
                var index = args.get_rowIndex();
                $(".imageContainer img:eq(" + index + ")").remove();
            }
        //]]>
        </script>
        <span class="info"></span>
        <telerik:RadAsyncUpload runat="server" ID="RadAsyncUpload1" HttpHandlerUrl="~/Upload/Examples/Async/ImageUploader/Handler.ashx"
            OnClientFileUploaded="fileUploaded" OnClientFileUploadRemoving="fileUploadRemoving" MultipleFileSelection="Disabled"
            AllowedFileExtensions="jpeg,jpg,gif,png,bmp">
        </telerik:RadAsyncUpload>
        <div class="imageContainer">
        </div>
        <qsf:Footer runat="server" ID="Footer1" />
        </form>
    </body>
    </html>

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