Visual Studio提供的通用对话框控件有：ColorDialog、FolderBrowserDialog、FontDialog、OpenFileDialog、SaveFileDialog、PageSetupDialog、PrintDialog和PrintPreviewDialog。
在使用这些中的某个“通用对话框”控件时，可以向窗体添加该控件，并将其放在控件托盘上。可以保留这些控件的默认名字。如colorDialog1和fontDialog1，因为每种类型只有一个控件可以使用。
显示windows通用对话框
dialogObject.ShowDialog();
示例代码：
1: using System;
2: using System.Collections.Generic;
3: using System.ComponentModel;
4: using System.Data;
5: using System.Drawing;
6: using System.Linq;
7: using System.Text;
8: using System.Windows.Forms;
9:
10: namespace CommonDialog
11: {
12: public partial class FormMain : Form
13: {
14: public FormMain()
15: {
16: InitializeComponent();
17: }
18:
19: private void btnColor_Click(object sender, EventArgs e)
20: {
21: colorDialog1.ShowDialog();
22: txtShow.BackColor = colorDialog1.Color;
23: }
24:
25: private void btnFont_Click(object sender, EventArgs e)
26: {
27: fontDialog1.ShowDialog();
28: txtShow.Font = fontDialog1.Font;
29: }
30:
31: private void button1_Click(object sender, EventArgs e)
32: {
33: folderBrowserDialog1.ShowDialog();
34: txtShow.Text = folderBrowserDialog1.SelectedPath;
35: }
36: }
37: }