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

我有同样的问题与Repeater,因为我有一个网页与一个网站的Repeater控件,已启用EnableEventValidation开关。这并不好。我得到无效的回发相关异常。

对我来说有用的是为Repeater设置EnableViewState="false"。它的优点是使用起来更简单,就像关闭网站或网页的事件验证一样简单,但是范围比关闭事件验证要小得多。

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。

对我们来说,问题只在生产环境中随机发生。RegisterForEventValidation没有为我们做任何事情。

最后,我们发现在asp.net应用程序运行的web场中,两台IIS服务器安装了不同的。net版本。所以看起来他们有不同的规则加密asp.net验证散列。更新它们解决了大部分问题。

另外,我们在web中配置了machineKey(compatibilityMode)(在两个服务器中相同),httpRuntime(targetFramework), ValidationSettings:UnobtrusiveValidationMode, pages(renderAllHiddenFieldsAtTopOfForm)。配置两个服务器。

我们使用该站点生成密钥https://www.allkeysgenerator.com/Random/ASP-Net-MachineKey-Generator.aspx

我们花了很多时间来解决这个问题,我希望这对大家有所帮助。

<appSettings>
   <add key="ValidationSettings:UnobtrusiveValidationMode" value="None" />
...
</appSettings>
<system.web>
   <machineKey compatibilityMode="Framework45" decryptionKey="somekey" validationKey="otherkey" validation="SHA1" decryption="AES />
   <pages [...] controlRenderingCompatibilityVersion="4.0" enableEventValidation="true" renderAllHiddenFieldsAtTopOfForm="true" />
   <httpRuntime [...] requestValidationMode="2.0" targetFramework="4.5" />
...
</system.web>

对我有用的是将以下代码从page_load移动到page_prerender:

lstMain.DataBind();
Image img = (Image)lstMain.Items[0].FindControl("imgMain");

// Define the name and type of the client scripts on the page.
String csname1 = "PopupScript";
Type cstype = this.GetType();

// Get a ClientScriptManager reference from the Page class.
ClientScriptManager cs = Page.ClientScript;

// Check to see if the startup script is already registered.
if (!cs.IsStartupScriptRegistered(cstype, csname1))
{
    cs.RegisterStartupScript(cstype, csname1, "<script language=javascript> p=\"" + img.ClientID + "\"</script>");
}

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();
        }

这就是我得到它的原因:

我有一个ASP:ListBox。最初它是隐藏的。在客户端,我将通过AJAX填充它的选项。用户选择了一个选项。然后,当单击Submit按钮时,服务器会对ListBox感到奇怪,因为它不记得它有任何选项。

因此,我所做的是确保在将表单提交回服务器之前清除所有列表选项。这样服务器就不会抱怨,因为列表到客户端时是空的,返回时也是空的。

排序! !