在ASP.NET中人工触发页面事件?

max*_*axp 4 c# asp.net rendercontrol

我正在使用C#中的静态类,我正在尝试使用Control.RenderControl()一个字符串/标记表示Control.

不幸的是,控件(和所有子控件)使用事件冒泡来填充某些值,例如,在实例化时,然后调用RenderControl()以下内容:

public class MyTest : Control
{
    protected override void OnLoad(EventArgs e)
    {
        this.Controls.Add(new LiteralControl("TEST"));
        base.OnLoad(e);
    }
}
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我返回一个空字符串,因为OnLoad()从未被解雇过.

有没有办法可以调用'假的'页面生命周期?也许使用一些虚拟Page控制?

mcl*_*129 9

我能够通过使用本地实例来实现这一点PageHttpServerUtility.Execute:

// Declare a local instance of a Page and add your control to it
var page = new Page();
var control = new MyTest();
page.Controls.Add(control);

var sw = new StringWriter();            

// Execute the page, which will run the lifecycle
HttpContext.Current.Server.Execute(page, sw, false);           

// Get the output of your control
var output = sw.ToString();
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编辑

如果您需要控件存在于<form />标记内,则只需HtmlForm向页面添加一个控件,然后将控件添加到该表单中,如下所示:

// Declare a local instance of a Page and add your control to it
var page = new Page();
var control = new MyTest();

// Add your control to an HTML form
var form = new HtmlForm();
form.Controls.Add(control);

// Add the form to the page
page.Controls.Add(form);                

var sw = new StringWriter();            

// Execute the page, which will in turn run the lifecycle
HttpContext.Current.Server.Execute(page, sw, false);           

// Get the output of the control and the form that wraps it
var output = sw.ToString();
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