How to make the loop wait to load the webbrowser component before going to the next item?

Question

I am reading the contents of a textbox, and using a "loop for each" to pass the string in sequence to the url on localhost that contains php code:

$var = $_GET["nts"];
echo $var;

So far so good, the problem is that the loop does not wait for the full loading of the webbrowser document, so, for example, I cannot parse the html document of each string, the idea is to throw a string into the webbrowser and wait for the full loading of the webbrowser document, to launch the second string and so on.

Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
    Dim tb As String = TextBox1.Text
    If String.IsNullOrEmpty(tb) Then
        MsgBox("Null")
    Else
        For Each t As String In tb
            If (String.IsNullOrWhiteSpace(t)) Then
            Else
                WebBrowser1.Navigate(String.Concat("http://localhost/a/as.php?nts=", t))
            End If
        Next
    End If
End Sub

Private Sub WebBrowser1_DocumentCompleted(sender As Object, e As WebBrowserDocumentCompletedEventArgs) Handles WebBrowser1.DocumentCompleted

End Sub

Answer 1

From what I understand the problem is in

Dim tb As String = TextBox1.Text

as this will only take a string q would be Textbox1.Text, and so only make a request with the full text of Textbox1, a simple method to solve this would be using

Dim tb As String() = Split(TextBox1.Text, " ")

So it would separate each word in the spaces and thus allow to send several requests with each word of the Textbox.

If the problem continues comment here.