エラーが追加された場合

Question

Server Error in '/' 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) +2080169 
    System.Web.UI.Control.ValidateEvent(String uniqueID, String eventArgument) +106 
    System.Web.UI.WebControls.LinkButton.RaisePostBackEvent(String eventArgument) +32 
    System.Web.UI.WebControls.LinkButton.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +7 
    System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +11 
    System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +174 
    System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +5102 




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Version Information: Microsoft .NET Framework Version:2.0.50727.42; ASP.NET Version:2.0.50727.42 

これを修正するにはどうすればよいですか？

Answer 1

エラーは、次のいずれかを行うことができますする内容に十分な情報が含まれています。

1.マスターページに

<%@ Page EnableEventValidation="true" %> 

2.編集のWeb.Config

をディレクティブを追加します。

<system.web> 
    <pages enableEventValidation="true"/> 
</system.web> 

Answer 2

複数のフォーム要素がある可能性があります。コンテンツページからフォーム要素を削除します。