Change character in Tedit Delphi

问题

Sorry for my bad english. How to block a character in TEdit if I have text 'Kamu' in first TEdit and 'Dia' in 2nd TEdit where character is 'a' and change them to 'i' in 3rd TEdit?

回答1:

Use StringReplace.

NewValue := StringReplace(OldValue, 'a', 'i', [rfReplaceAll, rfIgnoreCase]);

You may want to omit rfIgnoreCase depending on your needs. You can read from and write to the content of the TEdit control by using its Text property. For instance:

Edit1.Text := StringReplace(Edit1.Text, ...);

来源：https://stackoverflow.com/questions/28961459/change-character-in-tedit-delphi