Question

I am getting values from a database, and trying to insert them into Internet Explorers history, using the UrlHistoryWrapper class. When I set the for conditions to something in the thousands, I will get this error, however, when I set the for condition to less than 100, it will run fine. I have checked the memory usage, and it should cause no problems. How can I make this code able to run, if chrome.URLs and firefox.URLs have thousands of values?

This is my code:

UrlHistoryWrapperClass urlHistory;
        UrlHistoryWrapperClass.STATURLEnumerator enumerator;
        List<STATURL> list = new List<STATURL>();
        urlHistory = new UrlHistoryWrapperClass();
        enumerator = urlHistory.GetEnumerator();
        bool display = false;
        chrome.GetHistory(display);
        for (int i = 0; i < chrome.URLs.Count; i++ )
        {
            URL url = chrome.URLs[i];
            urlHistory.AddHistoryEntry(url.url, url.title, ADDURL_FLAG.ADDURL_ADDTOHISTORYANDCACHE);
        }
        Firefox firefox = new Firefox();
        firefox.GetHistory(display:false);
        foreach (URL url in firefox.URLs)
        {
            MessageBox.Show(url.url);

            urlHistory.AddHistoryEntry(url.url, url.title, ADDURL_FLAG.ADDURL_ADDTOHISTORYANDCACHE);
        }

And this is my error:

***** Exception Text *******
System.Runtime.InteropServices.COMException (0x80070008): Not enough
storage is available to process this command. (Exception from HRESULT:
0x80070008) at UrlHistoryLibrary.IUrlHistoryStg2.AddUrl(String
pocsUrl, String pocsTitle, ADDURL_FLAG dwFlags) at
UrlHistoryLibrary.UrlHistoryWrapperClass.AddHistoryEntry(String
pocsUrl, String pocsTitle, ADDURL_FLAG dwFlags) at
Namespace.IE.SyncIE() in C:\Users\Chris\documents\visual studio
2010\Projects\TestURLGUI4\TestURLGUI4\URLHistory.cs:line 270 at
Namespace.Program.SyncAll() in C:\Users\Chris\documents\visual studio
2010\Projects\TestURLGUI4\TestURLGUI4\URLHistory.cs:line 152 at
TestURLGUI2.Form1.button11_Click(Object sender, EventArgs e) in
C:\Users\Chris\documents\visual studio
2010\Projects\TestURLGUI4\TestURLGUI4\Form1.cs:line 247 at
System.Windows.Forms.Control.OnClick(EventArgs e) at
System.Windows.Forms.Button.OnClick(EventArgs e) at
System.Windows.Forms.Button.OnMouseUp(MouseEventArgs mevent) at
System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons
button, Int32 clicks) at
System.Windows.Forms.Control.WndProc(Message& m) at
System.Windows.Forms.ButtonBase.WndProc(Message& m) at
System.Windows.Forms.Button.WndProc(Message& m) at
System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message&
m) at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32
msg, IntPtr wparam, IntPtr lparam)

Edit:

Here is my new code:

    for (var i = 0; i < firefox.URLs.Count; i++ )
    {
        URL url = firefox.URLs[i];
        urlHistory.AddHistoryEntry(url.url, url.title, ADDURL_FLAG.ADDURL_ADDTOHISTORYANDCACHE);
        Thread.Sleep(3);
        form.label1.Text = i + "/" + firefox.URLs.Count;
      //  MessageBox.Show(url.url);
        Application.DoEvents();
    }

Now, with this code, I can go up to 8447 without getting this error, but then it gets thrown.

I had someone else try to do this, and this is what he said:

Just tried your code and and it seems that there is a limit on the
number of the url records that can be added. I did the following
steps.

1. In Internet Explorer, Clear the history of websites I’ve visited.
2. I tried your code.
3. Got a COMException (0x80070008): Not enough storage is available to process this command. The exception is thrown at record number 41021
   for me (Windows 7, 64bit).
4. I tried your code again, and Got a very same exception. This time, No record have be added. To add the url records again. I have
   to clear the history of websites in Internet Explorer. I could not
   find a way to fix the problem.

For anyone who needs to know, the source code for the URLhistoryWrapper can be found on this CodeProject project.

Answer 1

Here is the solution I found to work. U need to run the

foreach (URL url in firefox.URLs)
    {
        MessageBox.Show(url.url);

        urlHistory.AddHistoryEntry(url.url, url.title, ADDURL_FLAG.ADDURL_ADDTOHISTORYANDCACHE);
    }

and the chrome ones, etc, in another thread. Like this:

Thread testthread = new Thread(SynceFirefoxToIE);
        testthread.Name = "FirefoxToIESynceThread";
        testthread.Start();


    }

    public void SynceFirefoxToIE() 
    {
        foreach (URL url in firefox.URLs)
      {

         urlHistory.AddHistoryEntry(url.url, url.title, ADDURL_FLAG.ADDURL_ADDTOHISTORYANDCACHE);
      }

    }