ToolTip unspecified Error

4 posts, 0 answers
  1. Richard
    Richard avatar
    11 posts
    Member since:
    Jul 2008

    Posted 27 Oct 2008 Link to this post

    I am using a Telerik Grid Control with a custom column that has a image button that has the item command attribute set to allow the row to be selected when the image is clicked.

    The tool tip on the image button works great, but does not work great and throws an "unspecified error" when the image button is clicked before tooltip appears.

    I have even commented out the code in the command:



    protected void OnAjaxUpdate(object sender, ToolTipUpdateEventArgs args)




    this.UpdateToolTip(args.Value, args.UpdatePanel);




    private void UpdateToolTip(string ImagePath, UpdatePanel panel)




    Control ctrl = Page.LoadControl("/ControlLibrary/FileUI/FilePopUp.ascx");



    FilePopUp popUp = (ControlLibrary.FileUI.FilePopUp)ctrl;


    popUp.theFileImagePath = ImagePath;




    protected void FilesGrid_ItemCommand(object source, GridCommandEventArgs e)



    //if (e.CommandName == "Select")
    // foreach (GridItem GI in FilesGrid.SelectedItems
    // {
    // GI.Selected = false;
    // }




    void FilesGrid_ItemDataBound(object sender, GridItemEventArgs e)
    if (Session["UserID"] == null)

    if (e.Item is GridDataItem)
    GridDataItem item = (GridDataItem)e.Item;
    //To access a cell Text
    if (item["Cost"].Text == "$0.00")
    "Cost"].Text = "Free";



    ImageButton theImg = (ImageButton)item["ThumbnailCol"].FindControl("thumbnailLnk");
    Literal theNumBoards = (Literal)item["BoardsCol"].FindControl("NumBoards");


    theNumBoards.Text = thumbnailsTA.CountNumBoards(




    "/services/GetThumbnail.ashx?ID=1&height=200&width=200&FileID=" + theImg.ImageUrl, true);


    theImg.ImageUrl =

    "/services/GetThumbnail.ashx?ID=1&width=83&height=67&FileID=" + theImg.ImageUrl;



    if (item["Type"].Text == "1")
    "Type"].Text = "yes";
    "Type"].Text = "no";





    <telerik:RadToolTipManager OnAjaxUpdate="OnAjaxUpdate" ID="RadToolTipManager1"
    Animation="Resize" Skin="Web20" Width="250px" Height="250px"
    OffsetY="15" ShowDelay="2000"
    AutoCloseDelay="4000" style="display: none;">



  2. Svetlina Anati
    Svetlina Anati avatar
    2795 posts

    Posted 31 Oct 2008 Link to this post

    Hello Richard,

    I built up a sample project in order to follow the logic you have described and tested clicking the image button before the tooltip is shown but I was not able to reproduce the problem - please examine the attached demo. I assume that you might have used AJAX on your page but I cannot be sure what is your exact configuration. I also tested the demo with the 2008.2 1001 version of the controls as you have noted.

    Would you please modify my test demo in order to reproduce the problem, open a new support ticket and send it to me along with detailed explanation of the problem, reproduction steps and confirmation of the used version of the Telerik.Web.UI.dll? Once I am able to reproduce the problem locally, I will do my best to help. 

    Kind regards,
    the Telerik team

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  4. Dario Zanelli
    Dario Zanelli avatar
    40 posts
    Member since:
    Dec 2009

    Posted 29 Jan 2010 Link to this post

    Hi Svetlina ,
    I need to add a TololTip to a GridDataItem dynamically generated.
    How can I?
    I wold like to do that using only C#, not in ASP.

    Thanks and regards.

  5. Svetlina Anati
    Svetlina Anati avatar
    2795 posts

    Posted 03 Feb 2010 Link to this post

    Hi Dario Zanelli,

    Did you try the suggestion and did you examine our online demos? When you add the grid column dynamically you should databind it and you can add the tooltips in the Item_DataBound event as explained and shown in our online demos. It does not matter whether you dynamically create or not the column as far as you have to simply add the desired controls to the TargetControls collection.

    the Telerik team

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