As Pete said, The Unity Application Block should help. Just to save your fingers this CP article[^] might help get a handle on it. Henry Minute If you open a can of worms, any viable solution *MUST* involve a larger can.

Thank you very much M.Sendilkumar

It is good idea.I tried.It is working for sp_pkeys stored procedure,but not for sp_fkeys.Ok! The issue is,access rights to sysinformation.If the user has enough rights to access sys ,sp_**** procs can be accessed from server explorer to LINQ to Sql DataContext designer. M.Sendilkumar

Because allocation on stack is much faster than on the heap (just move the stack pointer). -^-^-^-^-^- no risk no funk ................... please vote ------>

Thats what my problem is.I Set the button's left as form's left and button's top+buttons'height as form's top. This is the logic. protected override void OnClick(EventArgs e) { SetAutoLocation(); frmCal.Show(); Invalidate(); } private void SetAutoLocation() { Rect rect; GetWindowRect(this.Handle, out rect); Point tergatePoint; tergatePoint = new Point(rect.left, rect.top + this.Height); tergatePoint = new Point(Left, Top + Height); if (rect.left + this.Width - frmCal.Width < 0) { tergatePoint.X = 0; } else { tergatePoint.X = rect.left - frmCal.Width + this.Width; } if (tergatePoint.X + frmCal.Width > System.Windows.Forms.SystemInformation.WorkingArea.Right) { tergatePoint.X = System.Windows.Forms.SystemInformation.WorkingArea.Right - frmCal.Width; } else if (tergatePoint.X < 0) tergatePoint.X = 0; if (tergatePoint.Y + frmCal.Height > System.Windows.Forms.SystemInformation.WorkingArea.Bottom) { tergatePoint.Y = rect.top - frmCal.Height; } if (tergatePoint.Y < 0) { tergatePoint.Y = 0; } if (tergatePoint.X < 0) { tergatePoint.X = 0; } frmCal.Location = tergatePoint; } public struct Rect { internal int left, top, right, bottom; } First click form is not positioning well ,but from second click onwards it is working fine. Can you just see that logic is correct or not? M.Sendilkumar

Can you tell me what exactly I need to do? M.Sendilkumar

Guffa wrote: I'm not sure if it's an oversight in the design that a static class can be serializable, or if it's intentional. I don't think the AttributeUsage attribute provides a way to specify that an attribute can be applied only to non-static classes. That's probably why Serializable can be applied to any class. Josh

You have not explained, in enough detail, exactly what it is that you are after. "Let us be thankful for the fools. But for them the rest of us could not succeed." - Mark Twain "There is no death, only a change of worlds." - Native American Proverb

you have to peel your microprocessor's documentation and write the assembler code to what you need to do... i cannot help you on this, as it is a very specific task.

Tnx a lot M.Sendilkumar

You need to register the dll for COM use with the regasm.exe tool.

Yes we do have a VPN. M.Sendilkumar TVS Infotech Ltd Chennai

:) you're welcome. The problem with threads is that it's very easy to forget that they're there... Recently I've stumbled across a problem where a customer called and complained about an error message in on of my programs saying that an enumeration cannot be modified within a foreach loop. I was completely stumped because I had taken explicit care that I'm not removing items from a hashtable I was working with in a foreach, but still this error occurred. After a while it dawned on me: I had a timer that was checking the entries in the hashtable and this function worked flawless. But I also had a FileSystemWatcher set up that was adding entries to the hashtable. And when this occurred just when the timer callback was running this error occurred. :( Luckily, putting a lock(_myHashtable) { ... } here and there solved the problem quickly. mav

:)HI Roman Rodov Thanks for direct me to have a correct solutions.I tried it, it is working fine. M.Sendilkumar Senior Software Engineer TVS Infotech Chennai,TamilNadu,India. 98413 27002