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测试1

//校验文本框
function fCheckEdit(aForm:TForm) : Boolean;
var
  I                   : Integer;
  mmName,mmFLag,mmTxt : string;
  mmCurr              : Currency;
begin
  Result := False;
  try
    for i := 0 to aForm.ControlCount-1 do  begin   //aForm.Controls[i].ClassName
      if not (aForm.Controls[i] is TEdit) then Continue;
      (aForm.Controls[i] as TEdit).Text := Trim((aForm.Controls[i] as TEdit).Text);

      mmName  := aForm.Controls[i].Name;
      mmFlag  := Copy(mmName,1,1);                  //校验标志
      mmTxt   := (aForm.Controls[i] as TEdit).Text;
      if (mmFlag='c') and (mmTxt='') then begin
        f_ShowTS(YY('不允许为空值!'));
        (aForm.Controls[i] as TEdit).SetFocus;
        Exit;
      end;

      if (mmFlag='n') and (not TryStrToCurr(mmTxt,mmCurr)) then begin
        f_ShowTS(YY('必须为数值!'));
        (aForm.Controls[i] as TEdit).SetFocus;
        Exit;
      end;
    end;
    Result := True;
  except
  end;
end;

测试2

 1 //校验文本框
 2 function fCheckEdit(aForm:TForm) : Boolean;
 3 var
 4   I                   : Integer;
 5   mmName,mmFLag,mmTxt : string;
 6   mmCurr              : Currency;
 7 begin
 8   Result := False;
 9   try
10     for i := 0 to aForm.ControlCount-1 do  begin   //aForm.Controls[i].ClassName
11       if not (aForm.Controls[i] is TEdit) then Continue;
12       (aForm.Controls[i] as TEdit).Text := Trim((aForm.Controls[i] as TEdit).Text);
13 
14       mmName  := aForm.Controls[i].Name;
15       mmFlag  := Copy(mmName,1,1);                  //校验标志
16       mmTxt   := (aForm.Controls[i] as TEdit).Text;
17       if (mmFlag='c') and (mmTxt='') then begin
18         f_ShowTS(YY('不允许为空值!'));
19         (aForm.Controls[i] as TEdit).SetFocus;
20         Exit;
21       end;
22 
23       if (mmFlag='n') and (not TryStrToCurr(mmTxt,mmCurr)) then begin
24         f_ShowTS(YY('必须为数值!'));
25         (aForm.Controls[i] as TEdit).SetFocus;
26         Exit;
27       end;
28     end;
29     Result := True;
30   except
31   end;
32 end;

View Code

来源：https://www.cnblogs.com/wxc7009/p/11412952.html

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