.Net 如何在浏览器中获取被点击元素的 ID [英] .Net How to get the ID of the clicked Element in a Webbrowser

问题描述

我想在浏览器中获取被点击元素的 HTML Id.

I want to get the HTML Id of the clicked Element in a Webbrowser.

示例:如果我点击 Google 搜索按钮，它应该给我点击元素的 HTML ID(在这种情况下是一个按钮)

Example: If i click the Google Search button it should give me the HTML ID of the clicked element (in this case a button)

我应该如何做到这一点?

How should i achieve that ?

Webbrowser = Web 浏览器控件

Webbrowser = The Web browser Control

推荐答案

如果是针对 Web 浏览器控件，那么这篇文章解释了如何去做:https://www.codeproject.com/Articles/32279/How-To-Tell-什么是点击的 Web 浏览器控件

If it's for a Web browser control, then this article explains how to do it: https://www.codeproject.com/Articles/32279/How-To-Tell-What-is-Clicked-in-a-WebBrowser-Contro

首先，我们需要将屏幕上的鼠标坐标转换为 Point 对象:

First off, we need to translate the mouse coordinates on the screen, into a Point object:

Point ScreenCoord = new Point(MousePosition.X, MousePosition.Y); 

现在，我们必须根据屏幕坐标创建浏览器的坐标:

Now, we must create the coordinates of the browser, based off the coordinates of the screen:

Point BrowserCoord = webBrowser1.PointToClient(ScreenCoord);

现在我们可以使用 WebBrowser 文档 GetElementFromPoint 方法来检索被点击的元素:

Now we can use the WebBrowser documents  GetElementFromPoint method to retrieve the element that has been clicked:

HtmlElement elem = webBrowser1.Document.GetElementFromPoint(BrowserCoord);

现在，我们可以使用这个元素来查看点击了什么:

Now, we can use this element to see what has been clicked:

switch (elem.TagName) { 
case "A": //! We have clicked a link 
break; 
case "IMG": //! We have clicked an image
break; 
default: //! This is anywhere else 
break; 
}

这篇关于.Net 如何在浏览器中获取被点击元素的 ID的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！