Question

Here I’am checking if
WebBrowserEx1.Document.All.Item(t).OuterHtml is equal to abc but despite that they are same, it doesnt accept them same and does not perform the code in if statement. The blind one is me or Visual Basic ?

Big Pic : https://i.stack.imgur.com/hVjpH.png

Edit:

For t = 1 To WebBrowserEx1.Document.All.Count
    Dim abc = "<LI style=""PADDING-BOTTOM: 2px; PADDING-TOP: 2px"">Hata oluştu. İşlem tamamlanamamıştır. "
    If WebBrowserEx1.Document.All.Item(t).OuterHtml = abc Then
                        WebBrowserEx1.Navigate("http://uyg.sgk.gov.tr/vizite/tarihGiris.do")
       loc = "giris"
       WebBrowserEx1.Update()
       yeniSayfa = True

       Exit For
     End If
Next

Value of WebBrowserEx1.Document.All.Item(t).OuterHtml in watch:
“Hata oluştu. İşlem tamamlanamamıştır. “

The Value of abc in watch:
“Hata oluştu. İşlem tamamlanamamıştır. “

I think big pic should be more explanatory.

Second try with type correction

For t = 1 To WebBrowserEx1.Document.All.Count
                    Dim abc As String
                    abc = "<LI style=""PADDING-BOTTOM: 2px; PADDING-TOP: 2px"">Hata oluştu. İşlem tamamlanamamıştır. "
                    If WebBrowserEx1.Document.All.Item(t).OuterHtml = abc Then
                        WebBrowserEx1.Navigate("http://uyg.sgk.gov.tr/vizite/tarihGiris.do")
                        loc = "giris"
                        WebBrowserEx1.Update()
                        yeniSayfa = True
                        Exit For
                    End If
                Next

Answer 1

Note the type of each object in the right column. Since abc variable is of type “Object”, the = operator is checking for reference equality. The object referred to by abc may be a string, but since the variable is merely typed as an Object, you get the reference comparison. Since those two objects do not refer to the same block of memory, the compare returns False. Change your abc declaration to look like this:

Dim abc As String = "<LI ... "

Some other things to look for:

• Any whitespace difference won’t show up in the debug/watch windows, which can mangle the displayed value of your variables to fit in the space. Try clicking on the magnifying glass for a closer look.
• I see some non-ascii characters. Make sure you’re using the exact same unicode code points, or the comparison can fail.