[2008] Webbrowser.navigate freezing

I have a simple program with a web browser control and a button that causes it to navigate to a certain web page, as well as an input and another button for entering a url directly.

Everything was working fine until I started messing with the document completed event in the control.

The form loads a url initially and after that 80% of the time it freezes when clicking the button or entering a new url. I deleted the document completed code and now it still freezes a majority of the time.

I cant for the life of me see any pattern in the freeze.

Any ideas?

Does control eventually return to the application or do you have to kill it?

Could it be the navigate is just taking a long time?

IT goes not responding and I have to kill it everytime.

Post your code so we can have a look at what might be occurring.

The button code:

Code:

---

    Private Sub webreg_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles webreg.Click
        pages.SelectTab(tab_webreg)
        TextBox1.AppendText("some text")
        WebPanel.Navigate("Site to go to")
    End Sub

---

the on load call:

Code:

---

Private Sub Main_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        WebPanel.Navigate("another site")
    End Sub

---

It locks up 80% of the time when I click the button which is in the menu bar at the top.

Could it be something with the site you are calling? If you make the site "http://google.com", does it ever crash?

I was thinking that might be the issue, but using a url input I have been able to lock it up with several sites.

If it is site specific is there anyway to keep it from crashing the whole program?

If it makes no difference using a few different web pages then I would suggest something radical here...

It would only take a few minutes but try rebuilding the app but with the minimum of code. So open a new project, place a WebBrowser on the form and a button. In the button click event put
WebBrowser1.Navigate("http://www.google.com"),
in the load event put
WebBrowser1.Navigate("http://www.cnn.com").

Does that exhibit the exact same behaviour? If it doesn't then perhaps your existing project is in some way corrupted or there is a property set wrong somewhere.

A few questions here:

Code:

---

pages.SelectTab(tab_webreg) '<<< what is pages? a TabControl? And you try to select a tabpage?
TextBox1.AppendText("some text") '<<< Where is the textbox? Is it on the same tabpage you selected above? Is there any existing text before you appends some more to it?
WebPanel.Navigate("Site to go to") '<<< Where is WebPanel? Is it on the same tabpgae you selected above?

---

Quote:

---

Originally Posted by stanav

A few questions here:

Code:

---

pages.SelectTab(tab_webreg) '<<< what is pages? a TabControl? And you try to select a tabpage?
TextBox1.AppendText("some text") '<<< Where is the textbox? Is it on the same tabpage you selected above? Is there any existing text before you appends some more to it?
WebPanel.Navigate("Site to go to") '<<< Where is WebPanel? Is it on the same tabpgae you selected above?

---

---

pages is a tabcontrol, and yes i am selecting a tab named tab_webreg

the textbox is on another panel

The textbox does not initially have any text in it, but could if inserted by user

The webbrowser "webpanel" is seperate from the tabpage.

Thanks for the help guys, this is driving me crazy!

Weird, could you try what I suggest in post #9?, that would at least isolate it to something in your code.

I will get right on it and post as soon as I do, in the meantime, the main page that I am loading has a log-in. I log in in the normal way, but when I come back to that site it always requires me to log in again.

Is the cookie or session not being set correctly? Any way I can force it to set in the program?