VB.NET GetElementById 内文 [英] VB.NET GetElementById innertext

问题描述

好的，这是我带有 ID 的 html 行:

<id="accounttype" class=inline-block"><strong><?=$_SESSION['accounttype']?></strong><br>

这就是它抓取的东西
当然虽然这变成了文字

<?=$_SESSION['accounttype']?>

这是我的 vb.net 代码

 TextBox4.Text = WebBrowser1.Document.GetElementById("accounttype").InnerText

当我运行程序时出现此错误

未将对象引用设置为对象的实例.

解决方案

我没有看到 ID 为 accounttype 的元素.我所看到的只是一个 ID 为 newssite 的元素.GetElementById 返回属性 id 等于您传递它的任何元素的元素.例如:

Hello World

和 VB.NET 代码:

TextBox4.Text = WebBrowser1.Document.GetElementById("accounttype").InnerText

您可能没有包含代码；但在尝试使用它之前，您还应该确保 WebBrowser 已完全加载其内容.

Okay so this is my html line with the ID:

<id="accounttype" class=inline-block"><strong><?=$_SESSION['accounttype']?></strong><br>

this is what it grabs
of course though that turns into text

<?=$_SESSION['accounttype']?>

this is my vb.net code

  TextBox4.Text = WebBrowser1.Document.GetElementById("accounttype").InnerText

When i run the program i get this error

Object reference not set to an instance of an object.

解决方案

I don't see an element with an ID of accounttype. All I see is an element with an ID of newssite. GetElementById returns the element who has an attribute id equal to whatever you pass it. For example:

<div id="accounttype">Hello World</div>

And the VB.NET Code:

TextBox4.Text = WebBrowser1.Document.GetElementById("accounttype").InnerText

You may not have included the code; but you should also make sure the WebBrowser has completely loaded its contents before trying to work with it.

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