How to insert text into textarea through c# with Forms.WebBrowser

Question

Suppose I had the following HTML:

<html>
<body>
   <textarea id="foo"></textarea>
</body>
</html>

How to insert text into the textarea through C# Htmldocument ?

The setattribute () method is not working as there is no value field for textarea .

So how to insert text into textarea through C#?

Any advice is much appreciated!
Thanks in advance.

Answer 1

First, add a reference to your project for Microsoft.mshtml , or if it is not on the list, the file C:\\Program Files (x86)\\Microsoft.NET\\Primary Interop Assemblies\\Microsoft.mshtml.dll . Then the C# code would look something like:

string myId = "foo";
string myNewValue = "This goes in the Text Area!";

IHTMLDocument2 htmlDoc = webBrowser1.Document.DomDocument as IHtmlDocument2;
if (htmlDoc != null)
{
  var textAreaType = typeof(IHTMLTextAreaElemnt);
  IHTMLTextAreaElement htmlTextArea = 
    htmlDoc.All
           .FirstOrDefault(x => textAreaType.IsAssignableFrom(x)
                                && ((IHTMLElement)x).id == myId) 
           as IHTMLTextAreaElement;
  if (htmlTextArea != null)
  {
    htmlTextArea.value = myNewValue;
  }
}

How to insert text into textarea through c# with Forms.WebBrowser

Question

1 answers

solution1
0 2012-03-18 08:06:03

How to insert text into textarea through c# with Forms.WebBrowser

Question

1 answers

solution1 0 2012-03-18 08:06:03

solution1
0 2012-03-18 08:06:03