TFileOpenDialogDemo 项目分析

项目信息

• 项目名称: TFileOpenDialogDemo
• 下载链接: TFileOpenDialogDemo.rar
• 分析时间: 2026-03-05

文件结构

TFileOpenDialogDemo/
├── Extractor_Icon.ico
├── Project1.py
├── Project1.xml
├── Unit1.py
├── Unit1.pydfm
├── Unit1.sct
├── Unit1.sfm

主程序文件: Project1.py

from glcl import *
from Unit1 import *

def main():
    Application.Initialize()
    Application.Title = 'Project1'
    Application.MainFormOnTaskbar = True
    Application.Icon.LoadFromFile(os.path.join(os.path.dirname(os.path.abspath(__file__)), "Extractor_Icon.ico"))
    MainForm = Form1(Application)
    MainForm.Show()
    FreeConsole()
    Application.Run()
    MainForm.Free()

if __name__ == '__main__':
    main()

单元文件: Unit1.py

import os
from glcl import *

class Form1(Form):

    def __init__(self, owner):
        self.Button1 = Button(self)
        self.FileOpenDialog1 = FileOpenDialog(self)
        self.LoadProps(os.path.join(os.path.dirname(os.path.abspath(__file__)), "Unit1.pydfm"))
        self.Button1.OnClick = self.Button1Click

        # 创建一个按钮用于打开文件对话框
        self.button = Button(self)
        self.button.Parent = self                 # 设置父控件为当前窗体
        self.button.Caption = 'Open File'         # 按钮标题
        self.button.Left = 150                    # 设置按钮的左侧距离
        self.button.Top = 50                       # 设置按钮的顶部距离
        self.button.OnClick = self.open_file_dialog  # 注册按钮点击事件处理程序

        # 创建一个标签用于显示所选文件的路径
        self.label = Label(self)
        self.label.Parent = self                  # 设置父控件为当前窗体
        self.label.Left = 10                      # 设置标签的左侧位置
        self.label.Top = self.button.Top + 30     # 设置标签的顶部位置，位于按钮下方
        self.label.Caption = 'Selected File: '    # 标签标题

    # 打开文件对话框的处理函数
    def open_file_dialog(self, Sender):
        # 创建文件打开对话框实例
        dialog = FileOpenDialog(self)
        dialog.Title = 'Select a File'           # 对话框标题

        # 显示对话框并检查用户是否选择了文件
        if dialog.Execute():
            selected_file = dialog.FileName       # 获取所选文件的路径
            self.label.Caption = f'Selected File: {selected_file}'  # 更新标签标题

    def Button1Click(self, Sender):
        # 如果是选择文件夹，需要指定Options属性中的fdoPickFolders为True
        if self.FileOpenDialog1.Execute():
            self.Caption = self.FileOpenDialog1.FileName

设计文件: Unit1.sct

def Button1Click(Sender): 

设计文件: Unit1.sfm

object Form1: TForm
  Left = 0
  Top = 0
  Caption = 'Form1'
  ClientHeight = 161
  ClientWidth = 298
  Color = clBtnFace
  Font.Charset = DEFAULT_CHARSET
  Font.Color = clWindowText
  Font.Height = -15
  Font.Name = 'Segoe UI'
  Font.Style = []
  TextHeight = 20
  object Button1: TButton
    Left = 112
    Top = 120
    Width = 99
    Height = 25
    Caption = #36873#25321#25991#20214#22841
    TabOrder = 0
    OnClick = Button1Click
  end
  object FileOpenDialog1: TFileOpenDialog
    FavoriteLinks = <>
    FileTypes = <>
    Options = [fdoPickFolders]
    Left = 72
    Top = 120
  end
end

其他文件

• Extractor_Icon.ico
• Project1.xml

详细分析

功能概述

对话框组件演示

使用的组件

• Form1 (TForm)
• Button1 (TButton)
• FileOpenDialog1 (TFileOpenDialog)

技术特点

• 包含3个GUI组件
• 定义2个事件处理

窗体属性

• caption: #36873#25321#25991#20214#22841
• height: 161
• width: 298

代码分析

导入的模块: - import os - from glcl import *

定义的类: - Form1

定义的方法: - init - open_file_dialog - Button1Click

事件绑定: - self.Button1.OnClick = self.Button1Click - self.button.OnClick = self.open_file_dialog # 注册按钮点击事件处理程序

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