I have a textbox where the users can write their names and along with that I have a button that locks the name after they click that button. So when they click the button, I want the textbox to become ReadOnly.
Any Idea how to do that?
//textbox is ur textbox
//btn is ur edit button
//this line would make textbox readonly ,add below code to ur Form Constructor
textbox.ReadOnly=true;
//this line would make your textbox editable and focuses on it when edit button is clicked
btn.Click+=new EventHandler((o,e)=>{textbox.ReadOnly=False;textbox.Focus();})
//this line would make textbox readonly when the enter button(return key) is pressed
textbox.KeyUp+=new KeyEventHandler((o,e)=>{if(e.KeyCode==Keys.Return)textbox.ReadOnly=true;});
//this line would make the textbox readonly, when textbox loses focus
textbox.Leave += new EventHandler((o, e)=>textbox.ReadOnly=true);Above Code should work for you. Also you can use Enabled instead of readonly
