打开文件对话框

 //创建打开文件的对象OpenFileDialog openFileDialog = new OpenFileDialog();openFileDialog.Title = "请选择要打开的文件";//设置对话框标题openFileDialog.Multiselect = true;  //设置对话框可以多选openFileDialog.InitialDirectory = @"C:\Users\user1\Desktop\研发报告\basler拍照研究报告";//设置对话框的初始目录//设置对话框的文件类型openFileDialog.Filter = "文本文件|*.pptx|图片文件|*.jpg|所有文件|*.*";openFileDialog.ShowDialog();//展示对话框string path = openFileDialog.FileName;//获取选中的路径try{using (FileStream fs = new FileStream(path, FileMode.Open, FileAccess.Read)){byte[] buffer = new byte[fs.Length];int r = fs.Read(buffer, 0, buffer.Length);string str = Encoding.UTF8.GetString(buffer, 0, r);textBox1.Text = str;}}catch (Exception){MessageBox.Show("未选中文件");}

保存文件对话框

SaveFileDialog saveFileDialog = new SaveFileDialog();saveFileDialog.Title = "请选择要保存的路径";saveFileDialog.InitialDirectory = @"C:\Users\user1\Desktop\研发报告\basler拍照研究报告";saveFileDialog.Filter = "文本文件|*.txt|所有文件|*.*";saveFileDialog.ShowDialog();string path = saveFileDialog.FileName;//获得保存文件的路径if (path == ""){return;}using (FileStream fileStream = new FileStream(path, FileMode.OpenOrCreate, FileAccess.Write)){byte[] vs = Encoding.UTF8.GetBytes(textBox1.Text);fileStream.Write(vs, 0, vs.Length);}MessageBox.Show("保存成功");

字体对话框

   FontDialog fontDialog = new FontDialog();fontDialog.ShowDialog();textBox2.Font = fontDialog.Font;

颜色对话框

  ColorDialog colorDialog = new ColorDialog();colorDialog.ShowDialog();textBox2.ForeColor= colorDialog.Color;