Hey guys,
On form load I am using a web browser control to navigate to a specific webpage...
Then in the web browser's document completed event, I am doing this...
Problem is, it is throwing the following exception every time...
System.InvalidCastException: Conversion from string "background" to type "integer" is not valid. ---> System.FormatException: Input string was not in a correct format.
I don't understand where an integer is coming from, as "ExtractedStyle" is a string, and the style I am trying to extract ("background") is also a string... or so I thought.
Also, I double checked the HTML source code on that page, and there is definitely an ID named "wrapper" that uses a CSS style named "background".
What am I missing here?
Or is this not the correct way to extract a style from a webpage?
On form load I am using a web browser control to navigate to a specific webpage...
Code:
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
WebBrowser1.Navigate("http://www.website.com")
End SubCode:
Private Sub WebBrowser1_DocumentCompleted(ByVal sender As System.Object, ByVal e As System.Windows.Forms.WebBrowserDocumentCompletedEventArgs) Handles WebBrowser1.DocumentCompleted
Try
Dim ExtractedStyle As String = WebBrowser1.Document.GetElementById("wrapper").Style("background")
TextBox1.Text = ExtractedStyle
Catch ex As Exception
MessageBox.Show(ex.ToString)
End Try
End SubProblem is, it is throwing the following exception every time...
Quote:
System.InvalidCastException: Conversion from string "background" to type "integer" is not valid. ---> System.FormatException: Input string was not in a correct format.
Also, I double checked the HTML source code on that page, and there is definitely an ID named "wrapper" that uses a CSS style named "background".
What am I missing here?
Or is this not the correct way to extract a style from a webpage?
