注册事件中的问题以进行验证 [英] Problem in Register event for validation

问题描述

先生们，我使用了以下代码:

Gentlemen, I have used the code:

Dim options As System.Web.UI.PostBackOptions = New PostBackOptions(Me, String.Empty)
Me.TextBox1.Attributes.Add("onchange", Page.ClientScript.GetPostBackEventReference(options, True))

在userControl的Load事件处理程序中.
该代码在某些项目中有效.
在另一个例子中，它给了我一个例外:

RegisterForEventValidation can only be called during Render();

问候；

in the Load event handler of a userControl.
this code worked in some project.
in another one it gave me the exception:

RegisterForEventValidation can only be called during Render();

Regards;

推荐答案

先生们，我很抱歉；

在第一个项目中，我在Web.config中禁用页面级别的事件验证:

Gentlemen, I apologize;

In the first project I was disabling event validation on the page level in Web.config:

<pages enableEventValidation="false">
...
</pages>

因此，我控制的正确代码是:

so, the correct code for my control is:

Dim options As System.Web.UI.PostBackOptions = New PostBackOptions(Me, String.Empty)
Me.TextBox1.Attributes.Add("onchange", Page.ClientScript.GetPostBackEventReference(options, False))

问候；

Regards;

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