Question

I am using AsyncFileUpload (ajaxToolkit) control for uploading image file from registration page. uploaded file content are store into DB. So I need to show my uploaded file in asp:image control by httphander like <asp:image id="imgLogo" runat="server" ImageUrl="Images.aspx/id=12" />. So how to do this.

Answer 1

I have reviewed many site and I got answer of this question..
http://www.mikeborozdin.com/post/AJAX-File-Upload-in-ASPNET-with-the-AsyncFileUpload-Control.aspx

<ajaxToolkit:AsyncFileUpload ID="afuCompanyLogo" runat="server" 
            OnClientUploadError="uploadError" OnClientUploadComplete="uploadComplete"
            UploaderStyle="Modern" UploadingBackColor="#CCFFFF" 
            ThrobberID="myThrobber" 
        onuploadedcomplete="afuCompanyLogo_UploadedComplete" />
        <asp:Image ID="imgCompanylogo" CssClass="imgCompanylogo" runat="server" Height="80px" Width="80px" AlternateText="" />

protected void afuCompanyLogo_UploadedComplete(object sender, AjaxControlToolkit.AsyncFileUploadEventArgs e)
        {
            if(afuCompanyLogo.HasFile)
            {
                FileManagementEntity fileManagementEntity = new FileManagementEntity();
                FileManagement fileManagement = fileManagementEntity.Create();

                fileManagement.FileContentType = afuCompanyLogo.ContentType;
                fileManagement.FileContent = afuCompanyLogo.FileBytes;
                fileManagement.Size = afuCompanyLogo.FileBytes.Count();
                fileManagement.OriginalName = afuCompanyLogo.FileName;
                fileManagementEntity.Save(fileManagement);

                ViewState["logoID"] = fileManagement.FileManagementID;
                imgCompanylogo.ImageUrl = "Image.aspx?id=" + fileManagement.FileManagementID.ToString();
                ScriptManager.RegisterClientScriptBlock(afuCompanyLogo, afuCompanyLogo.GetType(), "img", "top.document.getElementById('" + imgCompanylogo.ClientID + "').src='Image.aspx?id=" + fileManagement.FileManagementID + "';", true);
            }
        }