修改InputQuery 实现 DateTimePicker 的功能
来源:互联网 发布:数据粒度举例 编辑:程序博客网 时间:2024/04/29 21:43
function GetAveCharSize(Canvas: TCanvas): TPoint;
var
I: Integer;
Buffer: array[0..51] of Char;
begin
for I := 0 to 25 do Buffer[I] := Chr(I + Ord('A'));
for I := 0 to 25 do Buffer[I + 26] := Chr(I + Ord('a'));
GetTextExtentPoint(Canvas.Handle, Buffer, 52, TSize(Result));
Result.X := Result.X div 52;
end;
function MyInputQuery(const ACaption, APrompt: string;
var Value: TDate): Boolean;
var
Form: TForm;
Prompt: TLabel;
dtp : TDateTimePicker;
DialogUnits: TPoint;
ButtonTop, ButtonWidth, ButtonHeight: Integer;
begin
Result := False;
Form := TForm.Create(Application);
with Form do
try
Canvas.Font := Font;
DialogUnits := GetAveCharSize(Canvas);
BorderStyle := bsDialog;
Caption := ACaption;
ClientWidth := MulDiv(180, DialogUnits.X, 4);
Position := poScreenCenter;
Prompt := TLabel.Create(Form);
with Prompt do
begin
Parent := Form;
Caption := APrompt;
Left := MulDiv(8, DialogUnits.X, 4);
Top := MulDiv(8, DialogUnits.Y, 8);
Constraints.MaxWidth := MulDiv(164, DialogUnits.X, 4);
WordWrap := True;
end;
dtp := TDateTimePicker.Create(Form);
with dtp do
begin
Parent := Form;
Left := Prompt.Left;
Top := Prompt.Top + Prompt.Height + 5;
Width := MulDiv(164, DialogUnits.X, 4);
Date := Value;
end;
ButtonTop := dtp.Top + dtp.Height + 15;
ButtonWidth := MulDiv(50, DialogUnits.X, 4);
ButtonHeight := MulDiv(14, DialogUnits.Y, 8);
with TButton.Create(Form) do
begin
Parent := Form;
Caption := '确认';
ModalResult := mrOk;
Default := True;
SetBounds(MulDiv(38, DialogUnits.X, 4), ButtonTop, ButtonWidth,
ButtonHeight);
end;
with TButton.Create(Form) do
begin
Parent := Form;
Caption := '取消';
ModalResult := mrCancel;
Cancel := True;
SetBounds(MulDiv(92, DialogUnits.X, 4), dtp.Top + dtp.Height + 15,
ButtonWidth, ButtonHeight);
Form.ClientHeight := Top + Height + 13;
end;
if ShowModal = mrOk then
begin
Value := dtp.Date;
Result := True;
end;
finally
Form.Free;
end;
var
I: Integer;
Buffer: array[0..51] of Char;
begin
for I := 0 to 25 do Buffer[I] := Chr(I + Ord('A'));
for I := 0 to 25 do Buffer[I + 26] := Chr(I + Ord('a'));
GetTextExtentPoint(Canvas.Handle, Buffer, 52, TSize(Result));
Result.X := Result.X div 52;
end;
function MyInputQuery(const ACaption, APrompt: string;
var Value: TDate): Boolean;
var
Form: TForm;
Prompt: TLabel;
dtp : TDateTimePicker;
DialogUnits: TPoint;
ButtonTop, ButtonWidth, ButtonHeight: Integer;
begin
Result := False;
Form := TForm.Create(Application);
with Form do
try
Canvas.Font := Font;
DialogUnits := GetAveCharSize(Canvas);
BorderStyle := bsDialog;
Caption := ACaption;
ClientWidth := MulDiv(180, DialogUnits.X, 4);
Position := poScreenCenter;
Prompt := TLabel.Create(Form);
with Prompt do
begin
Parent := Form;
Caption := APrompt;
Left := MulDiv(8, DialogUnits.X, 4);
Top := MulDiv(8, DialogUnits.Y, 8);
Constraints.MaxWidth := MulDiv(164, DialogUnits.X, 4);
WordWrap := True;
end;
dtp := TDateTimePicker.Create(Form);
with dtp do
begin
Parent := Form;
Left := Prompt.Left;
Top := Prompt.Top + Prompt.Height + 5;
Width := MulDiv(164, DialogUnits.X, 4);
Date := Value;
end;
ButtonTop := dtp.Top + dtp.Height + 15;
ButtonWidth := MulDiv(50, DialogUnits.X, 4);
ButtonHeight := MulDiv(14, DialogUnits.Y, 8);
with TButton.Create(Form) do
begin
Parent := Form;
Caption := '确认';
ModalResult := mrOk;
Default := True;
SetBounds(MulDiv(38, DialogUnits.X, 4), ButtonTop, ButtonWidth,
ButtonHeight);
end;
with TButton.Create(Form) do
begin
Parent := Form;
Caption := '取消';
ModalResult := mrCancel;
Cancel := True;
SetBounds(MulDiv(92, DialogUnits.X, 4), dtp.Top + dtp.Height + 15,
ButtonWidth, ButtonHeight);
Form.ClientHeight := Top + Height + 13;
end;
if ShowModal = mrOk then
begin
Value := dtp.Date;
Result := True;
end;
finally
Form.Free;
end;
end;
调用方法:
MyInputQuery('Caption','Prompt',定义接收的日期参数);
注意:日期参数最好在调用MyInputQuery前给默认值,不然带出的默认值是1899/12/30
0 0
- 修改InputQuery 实现 DateTimePicker 的功能
- 設置InputQuery的字体
- delphi中DateTimePicker同时修改日期和时间的实现
- DateTimePicker同时修改日期和时间的实现
- delphi中DateTimePicker同时修改日期和时间的实现
- delphi 弹出输入框的InputQuery, InputQuery 函数用法
- Android中DateTimePicker的实现
- asp.net MVC实现Fullcalendar增删改的功能遇到的问题(包括datetimepicker冲突)
- delphi 关于DateTimePicker的一点问题(同时修改日期和时间的实现)
- Delphi:InputQuery和InputBox的区别
- datetimepicker实现时间选择的相互制约
- 如何修改datetimepicker的日历的显示的宽度
- 修改系统时间功能的实现
- Android OTA功能的实现和修改
- android OTA 的功能实现和修改
- jqgrid 实现增加,删除,修改的功能
- android OTA 的功能实现和修改
- android OTA 的功能实现和修改
- python 字符串转化成数组
- iPhone将变得更聪明:根据位置调整安全设置
- Training--叠加动作栏
- Android核心基础
- 使用chrome保存facebook中视频文件的方法
- 修改InputQuery 实现 DateTimePicker 的功能
- mybatis3 简单入门
- 谷歌眼镜发明者:我们的设备能替代你的大脑
- jvm工具整理--jstat
- 尼康数码相机照片误删怎么恢复 相机内存卡数据恢复
- JAVA的三种标准输入方法例子
- 转:学习多线程之互斥锁、条件变量-linux多线程初学者
- cocos2d-x3.x屏蔽触摸遮罩层屏蔽按钮
- ThinkPHP