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

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。

其他回答

我有一个类似的问题,但我没有使用ASP。Net 1.1也没有通过javascript更新控件。 我的问题只发生在Firefox而不是IE(!)。

我在PreRender事件的下拉列表中添加了如下选项:

DropDownList DD = (DropDownList)F.FindControl("DDlista");
HiddenField HF = (HiddenField)F.FindControl("HFlista");
string[] opcoes = HF.value.Split('\n');
foreach (string opcao in opcoes) DD.Items.Add(opcao);

我的“HF”(隐藏字段)有换行符分隔的选项,如下所示:

HF.value = "option 1\n\roption 2\n\roption 3";

问题是HTML页面在代表下拉菜单的“选择”选项上出现了问题(我的意思是有换行符)。

所以我解决了我的问题加了一行

DropDownList DD = (DropDownList)F.FindControl("DDlista");
HiddenField HF = (HiddenField)F.FindControl("HFlista");
string dados = HF.Value.Replace("\r", "");
string[] opcoes = dados.Split('\n');
foreach (string opcao in opcoes) DD.Items.Add(opcao);

希望这能帮助到一些人。

(1) EnableEventValidation = " false "...................这对我没用。

(2) ClientScript.RegisterForEventValidation……这对我没用。

解决方案1:

在GridView中将Button/ImageButton更改为LinkButton。它的工作原理。(但我喜欢ImageButton)

研究:Button/ImageButton和LinkButton使用不同的回发方法

原文:

http://geekswithblogs.net/mahesh/archive/2006/06/27/83264.aspx

解决方案2:

在OnInit()中,输入如下代码来设置Button/ImageButton的唯一ID:

protected override void OnInit(EventArgs e) {
  foreach (GridViewRow grdRw in gvEvent.Rows) {

  Button deleteButton = (Button)grdRw.Cells[2].Controls[1];

  deleteButton.ID = "btnDelete_" + grdRw.RowIndex.ToString();           
  }
}

原文:

http://www.c-sharpcorner.com/Forums/Thread/35301/

我知道这是一个超级老的帖子。假设你正在调用你的应用程序,这里有一个对我有用的想法:

在页面上实现ICallbackEventHandler ClientScriptManager打电话。GetCallbackEventReference调用服务器端代码 正如错误消息所述,您可以调用ClientScriptManager。RegisterForEventValidation

如果你不需要完全控制,你可以使用一个更新面板来为你做这件事。

当我在ItemDataBound上添加id时,它没有给我错误,但它没有给我命令名。它返回命令名为空。然后我添加了命令名以及ItemDataBound。然后它解决了同样的问题。谢谢Nilesh,好建议。它起作用了:)

如果您使用Ajax更新面板。添加<Triggers>标签,并在其中使用<asp:PostBackTrigger…/>触发按钮或控件导致回发