Winforms: Attempted to read or write protected memory. This is often an indication that other memory is corrupt
- by mamcx
I have a bunch of background events.
All of them call a log:
private void log(string text, params object[] values)
{
if (editLog.InvokeRequired)
{
editLog.BeginInvoke(
(MethodInvoker)delegate
{
this.log(text, values);
});
}
else
{
text = string.Format(text, values) + Environment.NewLine;
lock (editLog)
{
editLog.AppendText(text);
editLog.SelectionStart = editLog.TextLength;
editLog.ScrollToCaret();
}
}
}
Sometimes I get this, but other times not:
System.AccessViolationException was unhandled
Message=Attempted to read or write protected memory. This is often an indication that other memory is corrupt.
Source=System.Windows.Forms
StackTrace:
at System.Windows.Forms.UnsafeNativeMethods.CallWindowProc(IntPtr wndProc, IntPtr hWnd, Int32 msg, IntPtr wParam, IntPtr lParam)
at System.Windows.Forms.NativeWindow.DefWndProc(Message& m)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.RichTextBox.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
at System.Windows.Forms.UnsafeNativeMethods.SendMessage(HandleRef hWnd, Int32 msg, Int32 wParam, Object& editOle)
at System.Windows.Forms.TextBoxBase.ScrollToCaret()
at Program1.frmMain.log(String text, Object[] values) in
...
...
...
P.D: Not always stop at this line, randomly will be one of the three times editLog methods/properties are used. Not always a exception is throw. Sometimes look like the thing freeze. But not the main UI, just the flow of messages (ie: log look like is never called again)
The app is a single form, with background process. I can't see what I doing wrong with this...
