Invalid postback or callback argument Error

Discussion in 'ASP .Net' started by =?Utf-8?B?SWJyYWhpbS4=?=, Jun 26, 2006.

  1. Hi,
    I'm getting the following error when requesting asp.net page.


    Invalid postback or callback argument. Event validation is enabled using
    <pages enableEventValidation="true"/> in configuration or <%@ Page
    EnableEventValidation="true" %> in a page. For security purposes, this
    feature verifies that arguments to postback or callback events originate from
    the server control that originally rendered them. If the data is valid and
    expected, use the ClientScriptManager.RegisterForEventValidation method in
    order to register the postback or callback data for validation.

    Any thoughts are welcome.

    Thanks
     
    =?Utf-8?B?SWJyYWhpbS4=?=, Jun 26, 2006
    #1
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  2. the message is pretty clear. the browser is posting back a value for a
    unknown control, or a value out of range. this usually happens when client
    code changes the values of a dropdown. if so following the instruction in
    the message.

    -- bruce (sqlwork.com)


    "Ibrahim." <> wrote in message
    news:...
    > Hi,
    > I'm getting the following error when requesting asp.net page.
    >
    >
    > Invalid postback or callback argument. Event validation is enabled using
    > <pages enableEventValidation="true"/> in configuration or <%@ Page
    > EnableEventValidation="true" %> in a page. For security purposes, this
    > feature verifies that arguments to postback or callback events originate
    > from
    > the server control that originally rendered them. If the data is valid and
    > expected, use the ClientScriptManager.RegisterForEventValidation method in
    > order to register the postback or callback data for validation.
    >
    > Any thoughts are welcome.
    >
    > Thanks
     
    bruce barker \(sqlwork.com\), Jun 26, 2006
    #2
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