CODEWITHSUNDEEP
vb.net
user3081546
user3081546

Reputation: 13

VB.net InternetExplorer HtmlDocument

Can someone help me? I am new to VB.net and try to write a very simple code to manipulate a website. However, i keep getting

"An unhandled exception of type 'System.InvalidCastException' occurred in Defer All.exe .... Unable to cast COM object of type 'System.__ComObject' to interface type 'mshtml.HTMLDocument'. This operation failed because the QueryInterface call on the COM component for the interface with IID '....)."

        Dim IE As InternetExplorer
        Dim HTMLDoc As HtmlDocument
        Dim oHTML_Element As mshtml.IHTMLElement
        IE = new InternetExplorer
        IE.Navigate("http://www.mediafire.com/")
        Do Until IE.ReadyState = 4
        Loop
        Loop Until Not IE.Busy
        ' ERROR on the following line
        HTMLDoc = IE.Document
        ' I tried making HTMLDoc as object. It passed the above line, but failed the next line due to no GetElementsByTagName method
        For Each oHTML_Element In HTMLDoc.GetElementsByTagName("input")
          '....................
        Next

Upvotes: 1

Views: 1511

Answers (1)

inquisitive
inquisitive

Reputation: 3629

change...

Dim IE As InternetExplorer
Dim HTMLDoc As HtmlDocument
'                    ^---------------------------this thing to,
                                                 mshtml.IHTMLDocument
Dim oHTML_Element As mshtml.IHTMLElement

Upvotes: 1

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