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.NET Forum / Languages / C# / February 2008Repalce dot with comma
Hi! How to replace dot with comma when user is typing somewhat in textBox? I have wrote this part of code to detect typed dot, but how to replace it with coma: private void txtNum_KeyPress(object sender, System.Windows.Forms.KeyPressEventArgs e) { if (e.KeyChar == (int)(char)'.') { e.Handled=true; // TO DO } } Thnx! > Hi! > [quoted text clipped - 15 lines] > > Thnx! if (e.KeyChar == Convert.ToChar(".")) e.KeyChar = Convert.ToChar(","); On 7 Feb, 14:58, za...@construction-imaging.com wrote: > > Hi! > [quoted text clipped - 20 lines] > > - Show quoted text - KeyChar is read only, well on 1.1 anyway, just getting 2008 installed on this machine at the moment. If it's changed I'll post back. > On 7 Feb, 14:58, za...@construction-imaging.com wrote: > [quoted text clipped - 25 lines] > KeyChar is read only, well on 1.1 anyway, just getting 2008 installed > on this machine at the moment. If it's changed I'll post back. It must be. I tested that code in VS2005 and it worked fine. Nope... if u paste code in (to the textbox) handeling it like that it wont work I think... u know ctrl-v... not while I tested it in 2005 anyways... but that was for 0-9 only accepted... or was it VB6? hmmm... dont remember.. well, tried the same solution and it worked on kanual input but not on copy/paste check what u got when u leave... and if wrong input warn user to carefully RTFM, and exit program/bluescreen ;) //CY > Hi! > [quoted text clipped - 15 lines] > > Thnx! if(e.KeyChar == '.') { TextBox box = (TextBox)sender; int pos = box.SelectionStart; box.Text = box.Text.Insert(pos,","); box.SelectionStart = pos + 1; e.Handled = true; } You don't really need to use the box variable, it just makes it more general purpose. > if(e.KeyChar == '.') > { [quoted text clipped - 7 lines] > You don't really need to use the box variable, it just makes it more > general purpose. Thank you very much! That's it! :) >> Hi! >> [quoted text clipped - 25 lines] > e.Handled = true; > } This doesn't properly handle the case when there is text selected already. Try constructing a new KeyPressEventArgs with a comma, and pass that to base.OnKeyPress.... oh wait, you're using an event, not an override. Call SendMessage(box.Handle, WM_CHAR, ...) to get the proper default handling of the key. > You don't really need to use the box variable, it just makes it more > general purpose. >This doesn't properly handle the case when there is text selected already. > >Try constructing a new KeyPressEventArgs with a comma, and pass that to >base.OnKeyPress.... oh wait, you're using an event, not an override. Call >SendMessage(box.Handle, WM_CHAR, ...) to get the proper default handling of >the key. In '08, a simple "if (e.KeyChar == '.') e.KeyChar = ',';" certainly works, though obviously won't handle pastes. To add to the confusion and as long as complete novels are not entered, one could just use TextChanged. For the average text fields used in my apps, i can't outtype this thing below. Maybe i'm too slow. ;) private void tb_Changed(object sender, EventArgs e) { TextBox tb = (TextBox)sender; int tbStart = tb.SelectionStart; tb.Text = tb.Text.Replace('.', ','); tb.SelectionStart = tbStart; } Then again, why not just do that on Validate.. the only time i found swapping keys on a user is for prank purposes. :)  SignatureRegards, Frank >> This doesn't properly handle the case when there is text selected >> already. [quoted text clipped - 22 lines] > Then again, why not just do that on Validate.. the only time i found > swapping keys on a user is for prank purposes. :) The specific case of dot/comma suggests international entry of numeric values. > The specific case of dot/comma suggests international entry of numeric > values.- Dölj citerad text - Hmm, 123,312.12 uses both... wich is wich.. is there a INTERnational standard for the case? and if not why? yes u can put it in win doze that it will read (or anyway write it that way) but is that implemented... Im running circles around swedish chars... really nice when going dipped in 7 bit somewhere... it sort of get like "Wdlcome" instead of "Welcome"... //CY >> The specific case of dot/comma suggests international entry of numeric >> values.- Dölj citerad text - > >Hmm, 123,312.12 uses both... wich is wich.. is there a INTERnational Indeed. Hence my notion that this should rather be done on Validate or perhaps on the enter key and not drive the user nuts with replacing his or her keystrokes. I know that if i typed a dot and it turned into a comma, i'd be staggering up the keyboard for the backspace and blaming the bottle for mishitting the keys. SignatureRegards, Frank Free MagazinesGet these publications absolutely FREE for up to 12 months. There are no hidden fees and no obligation. Simply choose a title, complete the application form and submit it. Read more ...
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