无效的回发或回调参数。使用'<pages enableEventValidation="true"/>'启用事件验证

当我从客户端返回一个页面时，我得到以下错误。我有JavaScript代码，修改asp:ListBox在客户端。

我们如何解决这个问题?

错误详情如下:

Server Error in '/XXX' Application.

--------------------------------------------------------------------------------
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.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.ArgumentException: 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.

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:

[ArgumentException: 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.]
   System.Web.UI.ClientScriptManager.ValidateEvent(String uniqueId, String argument) +2132728
   System.Web.UI.Control.ValidateEvent(String uniqueID, String eventArgument) +108
   System.Web.UI.WebControls.ListBox.LoadPostData(String postDataKey, NameValueCollection postCollection) +274
   System.Web.UI.WebControls.ListBox.System.Web.UI.IPostBackDataHandler.LoadPostData(String postDataKey, NameValueCollection postCollection) +11
   System.Web.UI.Page.ProcessPostData(NameValueCollection postData, Boolean fBeforeLoad) +353
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1194

--------------------------------------------------------------------------------
Version Information: Microsoft .NET Framework Version:2.0.50727.1433; ASP.NET Version:2.0.50727.1433

当前回答

这里没有提到的另一种方法是子类化ListBox

Ie.

public class ListBoxNoEventValidation : ListBox 
{
}

如果你子类化了system . web . ui . supportsevenvalidation属性，除非你显式地把它添加回来，否则它永远不会调用验证例程。这对任何控件都有效，而且是我发现的在一个控件的基础上“禁用”它的唯一方法(即，不是页面级别)。

2011-02-28 15:56:41

其他回答

我用过DataGrid。其中一列是“选择”按钮。当我点击任何一行的“选择”按钮时，我收到了这个错误消息:

无效的回发或回调参数。事件验证使用配置或 <%@ Page EnableEventValidation="true" %>出于安全考虑，此特性验证回发或回发的参数回调事件源自最初呈现它们的服务器控件。如果数据是有效的和预期的，则使用 ClientScriptManager。RegisterForEventValidation方法，以便注册回发或回调数据进行验证。

我改了几个密码，最后成功了。我的体验路线:

1)我把页面属性改为EnableEventValidation="false"。但这并没有起作用。(这不仅危险出于安全原因，我的事件处理程序没有被调用:void Grid_SelectedIndexChanged(对象发送者，EventArgs e)

2)实现ClientScript。渲染方法中的RegisterForEventValidation。但这并没有起作用。

protected override void Render(HtmlTextWriter writer)
{
    foreach (DataGridItem item in this.Grid.Items)
    {
        Page.ClientScript.RegisterForEventValidation(item.UniqueID);
        foreach (TableCell cell in (item as TableRow).Cells)
        {
            Page.ClientScript.RegisterForEventValidation(cell.UniqueID);
            foreach (System.Web.UI.Control control in cell.Controls)
            {
                if (control is Button)
                    Page.ClientScript.RegisterForEventValidation(control.UniqueID);
            }
        }
    }
}

3)我改变了我的按钮类型在网格列从PushButton到LinkButton。它工作!(" ButtonType = " LinkButton”)。我认为如果你可以改变你的按钮到其他控件，如“LinkButton”在其他情况下，它会正常工作。

2008-11-09 07:57:56

在Page_Load事件中有代码吗?如果是，那么添加以下内容可能会有所帮助。

if (!Page.IsPostBack)
{ //do something }

在正常的生命周期中，当您单击命令并再次运行Page_load时，将抛出此错误 Page_Load ->单击“Command -> Page_Load(再次)-> Process ItemCommand Event”

2010-09-21 09:30:42

检查绑定控件的数据。一些无效数据破坏了ValidateEvent。

2010-09-23 08:32:02

如果您正在使用gridview，而不是在pageload inside !ispostback中绑定gridview，那么当您单击gridview中的编辑和删除行时，将出现此错误。

 protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
        bindGridview();
        }

2018-03-22 11:46:25

这里没有提到的另一种方法是子类化ListBox

Ie.

public class ListBoxNoEventValidation : ListBox 
{
}

2011-02-28 15:56:41

无效的回发或回调参数。使用'<pages enableEventValidation="true"/>'启用事件验证

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