Problem using RadAsyncUpload

[Rajiv Prashant]

When i use RadAsyncUpload and Rad Upload its giving the following error

Microsoft JScript runtime error: Sys.WebForms.PageRequestManagerServerErrorException: The process cannot access the file because it is being used by another process.


I have pasted the code for your reference.


    protected void AsyncUpload1_FileUploaded(object sender, FileUploadedEventArgs e)
    {

        checkThum.Width = Unit.Pixel(97);
        checkThum.Height = Unit.Pixel(60);
        if (e.File.FileName.Length <= 150)
        {
            byte[] imageData = new byte[e.File.InputStream.Length];

            using (Stream stream = e.File.InputStream)
            {
                stream.Read(imageData, 0, (int)e.File.InputStream.Length);
            }

            checkThum.Visible = true;
            checkThum.DataValue = imageData;

        }
        else
        {
            checkThum.Visible = false;

        }

    }


The above is the code where i will read it as bytes and display the image.




  protected void Button1_Click(object sender, EventArgs e)
    {
        if (RadUpload1.UploadedFiles.Count > 0)
        {
            if (AsyncUpload1.UploadedFiles.Count > 0)
            {
                AsyncUpload1.TargetFolder = System.Configuration.ConfigurationSettings.AppSettings["NetworkSmallImageUrl"];
                UploadedFile ufImage = AsyncUpload1.UploadedFiles[AsyncUpload1.UploadedFiles.Count - 1];

                string imgFileNameMaster = DateTime.Now.TimeOfDay.Ticks.ToString() + ufImage.FileName;
                string strImgPathMaster = System.Configuration.ConfigurationSettings.AppSettings["NetworkSmallImageUrl"] + imgFileNameMaster;
                string FolderPathMaster = Server.MapPath(System.Configuration.ConfigurationSettings.AppSettings["NetworkSmallImageUrl"]) + imgFileNameMaster;
                new PictureFunctions().IsResizeRadUploadImageWithWhiteBackroundFilled(ufImage, FolderPathMaster, 80, 56);

                ViewState["LogoPath"] = strImgPathMaster;

            }
}
}

The above is the button click event which is hidden when i choose a file from a Radupload this button1_click will be fired.


Can you guys help me out on this issue.

[Genady Sergeev]

Hello Rajiv Prashant,

The error comes from this line:

1.byte[] imageData = new byte[e.File.InputStream.Length];

Please use

1.byte[] imageData = new byte[e.File.ContentLength];

instead. The error should vanish.

Regards,
Genady Sergeev
the Telerik team

[Cesar]

Hello there, i have the same issue, my code reads the content length like u said but still gives me this error, please help:

codebehind:


    protected static byte[] _UploadedImage;
    public static RadAjaxManager _RadAjaxManager;
    public static RadAjaxPanel _RadAjaxMainPanel;

 protected void Page_Load(object sender, EventArgs e)
    {
            _RadAjaxManager = (RadAjaxManager)Master.FindControl("RadAjaxManager1");
            _RadAjaxMainPanel = (RadAjaxPanel)Master.FindControl("AjaxMainPanel");
            RadAjaxLoadingPanel _RadAjaxLoadingPanel = (RadAjaxLoadingPanel)Master.FindControl("LoadingPanel1");
            _RadAjaxManager.AjaxSettings.Clear();
            _RadAjaxManager.AjaxSettings.AddAjaxSetting(rauImage, rbiUserPicture);
}

  protected void rauImage_FileUploaded(object sender, Telerik.Web.UI.FileUploadedEventArgs e)
    {
        _UploadedImage = new byte[e.File.ContentLength];
        e.File.InputStream.Read(_UploadedImage, 0, e.File.ContentLength);
        rbiUserPicture.DataValue = _UploadedImage;
        e.File.InputStream.Dispose();
    }

page:
<%@ MasterType VirtualPath="~/User/UserDefault.master" %>
...
...
<telerik:RadBinaryImage ID="rbiUserPicture" runat="server" Height="210px"
                                 ResizeMode="Crop" Width="180px" />
                            <telerik:RadAsyncUpload ID="rauImage" runat="server"
                                onfileuploaded="rauImage_FileUploaded" RegisterWithScriptManager="true"
                                Width="180px" AllowedFileExtensions="jpeg,jpg,gif,png" InputSize="10"
                                MaxFileSize="5500000" TargetFolder="~/Temp/Photos"
                                UploadedFilesRendering="BelowFileInput"  AutoAddFileInputs="False"
                                OnClientValidationFailed="validationFailed" OnClientFileUploaded="fileUploaded"
                                MaxFileInputsCount="1">
                                <Localization Select="Update Picture" />
                            </telerik:RadAsyncUpload>

[Cesar]

please help!

[Genady Sergeev]

Hi Cesar,

Why do you call dispose on the input stream? This might cause unexpected behavior. Please comment out that line and let us know how it is going. If the issue persist please open a support ticket and attach there sample page and we will troubleshoot it.

Greetings,
Genady Sergeev
the Telerik team