Yes , thanks , I use If and else when dbIsNull . It works .

Yes , but I want that the User have an option to Fill datagrid(subTable) or not , so it can be Blank ... thanks

thanks , it solve the problem ! ;)

thanx ! ;)

nassimnastaran wrote: 64 bit That is probably your problem. Why is common sense not common? Never argue with an idiot. They will drag you down to their level where they are an expert. Sometimes it takes a lot of work to be lazy Please stand in front of my pistol, smile and wait for the flash - JSOP 2012

Thanks for your reply , Here is my file , pl z check it . or : www.4shared.com/rar/6WxLLxtL/ReadFromExcelFile.html I've prob yet ! thanks!

And you don't now. Obfuscation does not protect your IP. As a deterrent, it is next to useless if someone has a reasonable toolset available. *pre-emptive celebratory nipple tassle jiggle* - Sean Ewington "Mind bleach! Send me mind bleach!" - Nagy Vilmos My blog | My articles | MoXAML PowerToys | Mole 2010 - debugging made easier - my favourite utility

thanks , It's a good Lesson ! ;)

nassimnastaran wrote: and I want to avoide to any copy from the App. There's no such thing as copy protection that actually works. CPU ID is disabled by default on most systems because of privacy concerns and is not even implemented on the newest Intel CPUs and AMD never implemented it at all on any of there CPU's. So, CPUID is useless as an identifier. What you're talking about is a registration key. This is normally encrypted and stored in the registry in several locations. When the app is run (no login form required) the value is read back and decrypted and verified. A guide to posting questions on CodeProject[^] Dave Kreskowiak

Here is my code , plz help me ! SaveFileDialog saveDialog = new SaveFileDialog(); saveDialog.Filter = "Xml files (\*.xml)|\*.xml"; saveDialog.FilterIndex = 2; saveDialog.RestoreDirectory = true; saveDialog.InitialDirectory = "d:\\\\"; saveDialog.FileName = "XML File"; saveDialog.Title = "XML Export"; if (saveDialog.ShowDialog() == DialogResult.OK) { string OutPutXMLFile = ""; System.Xml.XmlDocument XMLDoc = new System.Xml.XmlDocument(); for (int i = 0; i < DataGridView1.Rows.Count; i++) { OutPutXMLFile = ""; for (int j = 0; j < DataGridView1.Columns.Count; j++) OutPutXMLFile += String.Format("{0:0.00}", DataGridView1.Rows\[i\].Cells\[j\].Value); XMLDoc.CreateElement(OutPutXMLFile); } } but I've got an Error to create a xml file ! thanks !

almost Like This , and in Windows Form . this change Color can be from left to Right and ... . thanks

:thumbsup: Wonde Tadesse MCTS

Okey , Thanks , My Means is the same that u wrote , Thanks!

That is Modular division. if it is like 4/3 ans will be 1. U can get the ans if u make it like 2.0/3 or 2/3.0

Quote: You'll have to teach it how. Yes , You are Right ! :-\ in fact I shouldn't to use any database , otherwise , it was simple than i want to do this now ! in any case I should do it with help u ! Regards ! :)

thanks for Ur Help , I wanted To give A Name for Each Row , that stored in a Combo Box !

thanks in Advance !

Iterate the items in the ComboBox controls (I am assuming they both have the same number of items), create a ListViewItem, set its text and sub-item text and add it to the ListView. djj55: Nice but may have a permission problem Pete O'Hanlon: He has my permission to run it.

no Idea !