I tried to count but in different way - it doesn`t work. Your way works great! Thanks a lot!

I need in my application to check if the data structure is correct in XML file which I read. How can I do that? Only message if it`s correct or not I need. Thanks

I need leave my textBox control only if I press three times the Tab key. I use this: private void KKEditControl_Leave(object sender, EventArgs e) { this.Focus(); } but it keeps focus in my textBox all the time. Please help me...

I know what you mean, but it isn`t the action I want. I don`t want replace all characters in my textBox but I want replace only that character which is curently selected by the posision of the cursor. For example text: 12345 when the cursor is (for ex.) between 3 and 4 by enter new character a want replace character 4 by new one. This should work like insert key in Microsoft Word. Anyone know the answer?

I want in my textBox enter characters in the following way: private void textBox2_KeyDown(object sender, System.Windows.Forms.KeyEventArgs e) { int i = this.textBox2.SelectionStart; if(i which is mean that every single character which is entered should replace existing character unless the cursor is on the end of the text. This sample code doesn`t work I want. Speaking gennerally I want in my text Box to replace all characters with new entered unless the cursor is on the end of the text. Can anyone help me? -- modified at 9:54 Wednesday 19th April, 2006

Maybe these piece of code will help you: 1) if you want create xml file with C# you can use example: XmlDocument myXml = new XmlDocument(); string xml_text = ""+ ""+ ""+ ""+ ""+ ""+ ""; myXml.LoadXml(xml_text); 2) if you want open xml document use exmaple: XmlDocument myXml = new XmlDocument(); XmlTextReader reader = new XmlTextReader(file_name); myXml.Load(reader); reader.Close(); 3) if you want save you xml document you can use example: XmlTextWriter writer = new XmlTextWriter("output.xml",null); writer.Formatting = Formatting.Indented; dokumentXml.Save(writer); writer.Close(); Best way to learn this is MSDN like http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vbcon/html/vborixmlschemadesignerwalkthroughs.asp

I`ve just written my own user control which is inherited from RichTextBox control. This control has it own property called RegularExpression. private string regularExpression; [Category("Behavior")] [Description("Wyrazenie regularne sprawdzające poprawność danych")] public string RegularExpression { get { return regularExpression; } set { regularExpression = value; } } With this property I set up the regular expression which validates my data in control. My problem is that I want set up this property by clicking my control`s context menu (a new window form with textBox to set up regular expression in it) like in the picture: Click here... After clicking OK button I want to set up RegularExpression property with context in textBox. In main application in not a problem. The problem apprears when I want do this the way I,ve just described... I can`t create reference: private void okButton_Click(object sender, System.EventArgs e) ValidatingEditControl.KKEditControl.regularExpresson = this.regExpTextBox1.Text; } It dispays: "ValidatingEditControl.KKEditControl.regularExpresson is inaccesible due to its protectionlevel". Can anyone help me with this? -- modified at 8:21 Monday 20th March, 2006

It`s working :D Thank you very much :) But code e.SuppressKeyPress = true; I turned into e.Handled = true; :) -- modified at 9:50 Friday 17th March, 2006

I`ve been wondering about creating my own parser, but in more difficult RE it`s very hard to build it. For e.g. ^(/d{2}-/d{3}){3,}$ Reg Exp... How can my parser read this to show me wich character is invalid? Any ideas?

Does anyone of you can tell why the following code: private void HandleKeyPress(object sender, KeyPressEventArgs e) { char c = e.KeyChar; if(c == (short)Keys.Back) { e.Handled = true; SendKeys.Send("{LEFT}"); return; } } works in common textBox but it doesn`t work in richTextBox? In textBox line e.Handled = true; stops the backspace key action and only action after pressing bakcspace key is move the cursor to left (SendKeys.Send("{LEFT}");). In richTextBox it`s taken double action. e.Handled = true; code doesn`t block backspace key action so: 1) first it deletes character (backspace key do it - it isn`t block) 2) second it moves the cursor to left (like SendKeys.Send("{LEFT}"); code do) Can anyone figure out what`s wrong with it?

You sugested that in a more difficult regular expression the better thing to do is to write my own regular expression parser? Do you have any idea how I suppose to do this?

Are you absolutely sure? Anyway...Thank you very much... You let me safe so much time of my research...

Does anyone of you can answer to my question? I want use regular expression in my text box to validate text. For example reg. expression like this : "[0-9][0-9]-[0-9][0-9][0-9]" accepts only for example "43-456" text. What if I enter "54-8f5" ? .NET Regular Expressions tells me that this text is not correct. But it doesn`t tell me which character is invalid. My problem is that I want .NET Regular Expressions show me which character (which character index in this incorrect string) is invalid. Please help me... -- modified at 15:53 Thursday 16th March, 2006 Is it possible with .NET regular expressions?

You can use this code: private void Form1_Paint(object sender, System.Windows.Forms.PaintEventArgs e) { Graphisc g = e.Graphisc; Bitmap bmp = new Bitmap("your_image.jpg"); g.DrawImage(bmp, 0, 0); } -- modified at 9:27 Thursday 16th March, 2006

Thanks a lot :) I discovered that code: System.Windows.Forms.Form NewFormObject = new MyForm(); is valid too :)

How to invoke from From1 application (it`s the main appliction) to another form (window) with for example cliking the button?

You asked me why it doesn`t work. It takes two action in the same time. First it deletes charakters (so backspace key works like should work), second it moves cursor to left like I want. In textBox works only second action which exactly I want. In richTextBox work both of them. e.Handled = true; code should make a backspace key action not allowed. Why is that? I need this action in my richTextBox to validate text which I enter to this.

I want in my RichTextBox this action to do: Backspace key takes the same action like left arrow key. Speaking generally I don`t want to delete characters by backspace key inside the textBox field unless it is the last character. This code works in TextBox (do the action which I want) but unfortunatelly doesn`t work in RichTextBox. private void textBox1_KeyPress(object sender, System.Windows.Forms.KeyPressEventArgs e) { char c = e.KeyChar; int start = textBox1.SelectionStart; int lenght = textBox1.Text.Length; if(c == (short)Keys.Back && start!=lenght) { e.Handled = true; SendKeys.Send("{LEFT}"); return; } } Can anyone help me?

I want in my RichTextBox this action to do: Backspace key takes the same action like left arrow key. Speaking generally I don`t want to delete characters by backspace key inside the textBox field unless it is the last character. This code works in TextBox (do the action which I want) but unfortunatelly doesn`t work in RichTextBox. private void textBox1_KeyPress(object sender, System.Windows.Forms.KeyPressEventArgs e) { char c = e.KeyChar; int start = textBox1.SelectionStart; int lenght = textBox1.Text.Length; if(c == (short)Keys.Back && start!=lenght) { e.Handled = true; SendKeys.Send("{LEFT}"); return; } } Can anyone help me? Sorry for my english ;)

Can anyone help me? I`ve just started my adventure with .NET. I want use regular expression in my text box to validate text. For example reg. expression like this : "[0-9][0-9]-[0-9][0-9][0-9]" accepts only for example "43-456" text. What if I enter "54-8f5" ? .NET Regular Expressions tells me that this text is not correct. But it doesn`t tell me which character is invalid. My problem is that I want .NET Regular Expressions show me which character (which character index in this incorrect string) is invalid. Can anyone help with this? conrados