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.

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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

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

当前回答

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();
        }

其他回答

以上这些方法对我都没用。经过更多的挖掘,我意识到我忽略了2个表单应用在页面上,这是导致问题的原因。

<body>
<form id="form1" runat="server">
<div>
        <form action="#" method="post" class="form" role="form">
        <div>
        ...
        <asp:Button ID="submitButton" runat="server"
        </div>
</div>
</body>

注意,最近ASP。NET已经开始考虑iframes在一个表单标签中包含一个表单标签在iframe文档本身是一个嵌套框架。为了避免这个错误,我不得不将iframe移出form标签。

如果你把UseSubmitBehavior="True"改成UseSubmitBehavior="False",你的问题就解决了

<asp:Button ID="BtnDis" runat="server" CommandName="BtnDis" CommandArgument='<%#Eval("Id")%>' Text="Discription" CausesValidation="True" UseSubmitBehavior="False" />

我遇到了同样的问题,两个列表框和两个按钮。

列表框中的数据是从数据库中加载的,您可以通过单击按钮在框之间移动项目。

我收到了一个无效的回发。

结果是数据中有回车换行符,当显示在列表框中时无法看到。

在除ie10和ie11之外的所有浏览器中都运行良好。

拆下车架回换线,一切正常。

问题是ASP。NET不会知道这个额外的或已删除的列表项。 你有很多选择(如下所示):

禁用eventvalidation(这是个坏主意,因为你损失了一点安全性,而代价却很小)。 使用ASP。NET Ajax UpdatePanel。(如果你添加或删除列表框,将列表框放在更新面板中并触发更新。通过这种方式,viewstate和相关字段得到更新,eventvalidation将通过。) 忘记客户端,使用经典的回发并添加或删除listitems服务器端。

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)。