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

我的问题解决时取消事件结束时网格事件在服务器端。

protected void grdEducation_RowEditing(object sender, GridViewEditEventArgs e)
{
  // do your processing ...

  // at end<br />
  e.Cancel = true;
}

2018-08-21 14:49:23

其他回答

如果您通过客户端脚本填写下拉列表，则在将表单提交回服务器之前清除列表;然后ASP。NET将不会抱怨，安全性将仍然存在。

为了从DDL中获得选择的数据，您可以将“OnChange”事件附加到DDL以收集隐藏输入或文本框中的值，并使用Style="display: none;"

2008-12-11 20:43:00

我实现了一个嵌套的网格视图，我也遇到了同样的问题。我使用了LinkButton而不是像这样的图像按钮:

在我有这样的专栏之前:

<asp:TemplateField ItemStyle-Width="9">
  <ItemTemplate>
 <asp:ImageButton ID="ImgBtn" ImageUrl="Include/images/gridplus.gif" CommandName="Expand"
                        runat="server" />
  </ItemTemplate>
</asp:TemplateField>

我像这样替换了。

<asp:TemplateField>
<ItemTemplate>
     <asp:LinkButton  CommandName="Expand" ID="lnkBtn"  runat="server" ><asp:Image  ID="Img"  runat="server" ImageUrl="~/Images/app/plus.gif" /></asp:LinkButton>
      </ItemTemplate>
</asp:TemplateField>

2011-04-21 12:34:03

我的问题解决时取消事件结束时网格事件在服务器端。

protected void grdEducation_RowEditing(object sender, GridViewEditEventArgs e)
{
  // do your processing ...

  // at end<br />
  e.Cancel = true;
}

2018-08-21 14:49:23

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

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>");
}

2010-10-14 21:35:27

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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