calling javascript function from

Discussion in 'ASP .Net' started by kimberly.walker, Dec 12, 2006.

  1. I have a piece of code that calls the clientside it works ok when no
    values are passed ie window.alert ('this is a test'). But I have a
    value from a textbox example:
    function openemail()
    var email = document.getElementbyID("txtEmailAddress").value;
    when I call this function
    string script = "<script language='javascript'>openemail();</script>";
    Page.RegisterClientScriptBlock("email", script);
    Its gives me an error saying missing object.
    Any help will be greatly appreciated
    kimberly.walker, Dec 12, 2006
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  2. kimberly.walker

    Serge/XX Guest

    It is due to the fact that when the aspx page is rendered, your control
    txtEmailAddress will have a more complicated id based on page id and
    container control (if any).

    To solve your issue, just do this

    function openemail(theEmailAddressControl)
    var email = document.getElementbyID(theEmailAddressControl).value;


    string script = "<script language='javascript'>" _
    "openemail(" & txtEmailAddress.ClientID & ");" _
    Page.RegisterClientScriptBlock("email", script);

    Serge/XX, Dec 12, 2006
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  3. kimberly.walker

    bruce barker Guest

    you are calling the function before the text control is parsed by the
    browser. try using RegisterStartupScript("openemail()")

    -- bruce (
    bruce barker, Dec 12, 2006
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