RegisterForEventValidation只能在渲染调用 [英] RegisterForEventValidation can only be called during Render

问题描述

我有一个WebMethod将从jQuery的AJAX调用：

I have a webmethod which will be called from jquery ajax:

[WebMethod]
public string TestMethod(string param1, string param2)
{
    StringBuilder b = new StringBuilder();
    HtmlTextWriter h = new HtmlTextWriter(new StringWriter(b));
    this.LoadControl("~/Pages/Controls/Listing.ascx").RenderControl(h);
    string controlAsString = b.ToString();
    return controlAsString;
}

（这是一个非静态方法，我们能够打它，这不是一个问题）

(it's a non-static method and we are able to hit it. That's not an issue)

在执行loadControl（）方法中，我得到一个错误说：RegisterForEventValidation只能在所谓的渲染

When the loadControl() method is executed, I get an error saying: RegisterForEventValidation can only be called during Render.

我已经列入EnableEventValidation =当前的aspx假，禁用ViewState中也。但我仍然得到同样的错误。在这个任何想法？

I have already included EnableEventValidation="false" for the current aspx, disabled viewstate also. but still i get the same error. Any ideas on this?

推荐答案

解决办法是禁用页面的事件验证的搜索结果
 ＆LT;％@页............ EnableEventValidation =假％GT;

Solution is to disable the Page's Event Validation as

<%@ Page ............ EnableEventValidation="false" %>

和通过添加下面的方法在C＃code后面

and Override VerifyRenderingInServerForm by adding following method in your C# code behind

public override void VerifyRenderingInServerForm(Control control)
{
    /* Confirms that an HtmlForm control is rendered for the specified ASP.NET
       server control at run time. */
}

请参考以下链接搜索结果
<一href=\"http://www.$c$cproject.com/Questions/45450/RegisterForEventValidation-can-only-be-called-duri\">http://www.$c$cproject.com/Questions/45450/RegisterForEventValidation-can-only-be-called-duri

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