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validate edit

Posted on 2004-04-09
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Last Modified: 2010-04-05
I wish to have an dbedit field that will change the first character of each word to uppercase.
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Question by:johnshailes
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by:psycho_cat_69
ID: 10793099
on the OnExit event of your DBEdit you can do this

DBEdit1.Text := UPPERCASE(copy(DBEdit1.Text,1,1)) + copy(DBEdit1.Text,2,length(DBEdit1.Text));
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shaneholmes earned 250 total points
ID: 10793442
This method will change the first character of each word to uppercase  as you type them, not waiting for you to exit.

Place this code in the OnKeyPress event of each of your TDBEdits you want this behavior in

 with Sender as TDBEdit do
  if (Text = '') OR (Text[SelStart] = ' ') OR (SelLength = Length(Text)) then
   if Key in ['a'..'z'] then  Key := UpCase(Key);

SHane
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Expert Comment

by:mokule
ID: 10793896
What is differrent in my solution
 - converts all characters to uppercase - not only this from range a - z
 - proper reaction for space insert/ delete

Question
 Should change other letters to lower case?

procedure TForm1.DBEdit1Change(Sender: TObject);
var
  i: integer;
  str: string;
  p: integer;
begin
 with Sender as TDBEdit do
   begin
   p := SelStart;
   str := Text;
   for i := 1 to Length(str) do
     begin
     if i = 1 then
       str[1] := AnsiUpperCase(str[1])[1]
     else if str[i-1] = ' ' then
       str[i] := AnsiUpperCase(str[i])[1]
     else
       str[i] := AnsiLowerCase(str[i])[1]
     end;
   Text := str;
   SelStart := p;
   end;
end;
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Expert Comment

by:shaneholmes
ID: 10793921
Mokule, i believe his request was for
 "first character of each word to uppercase"

and my solution above also allows for backspace, and spaces

Shane
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Expert Comment

by:shaneholmes
ID: 10793999
If you use my solution of Mokule solution, you can use the same solution for all Edits

by changing the typecast

example

with Sender as TDBComboBox do
  if (Text = '') OR (Text[SelStart] = ' ') OR (SelLength = Length(Text)) then
   if Key in ['a'..'z'] then  Key := UpCase(Key);


Shane
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Expert Comment

by:mokule
ID: 10794074
Shane,
But Your solution improperly react for inserting spaces.
If You write Unitedstates and go back to insert space it don't change for United States but leaves United states. My solutiolution on the other hand disallows writing McDonald and should be corrected if it is necessary.

Marek
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by:shaneholmes
ID: 10794149
Hmm, you may be right, but i dont believe there will ever be a need (and if so, just back up alittle farthur). I use my solution in many applications - As a matter of fact, its used in Game Console Manager (which is currently used in 94 gaming centers nationwide). Out of many of the bugs or fixes I have had to complete, no one has ever mentioned that.....

However, good find....

Shane
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Expert Comment

by:mokule
ID: 10794225
Shane,

Pay attention that his request didn't mention about typing. It is possible that he has already some data in database and only want to display it with big letters. I'm only speculating, but one never knows.

Marek
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by:shaneholmes
ID: 10794261
Good point!

Shane
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Our Dev teams are like yours. They’re continually cranking out code for new features/bugs fixes, testing, deploying, testing some more, responding to production monitoring events and more. It’s complex. So, we thought you’d like to see what’s working for us.

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