C#中教你一步步实现一个电话本窗体程序

末蓝、 2023-10-19 00:28 137阅读 0赞

## 场景 ##

使用C\#窗体程序实现一个电话本应用程序。

## 实现 ##

新建窗体程序，PhoneBook

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk_size_16_color_FFFFFF_t_70][]

然后打开工具箱，拖拽一个ListView到窗体中

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk_size_16_color_FFFFFF_t_70 1][]

拖拽完成后点击右上角三角符号，编辑选项--编辑列。

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk_size_16_color_FFFFFF_t_70 2][]

点击添加，修改每列的Name属性和显示text

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk_size_16_color_FFFFFF_t_70 3][]

添加三列，分别为姓名、类型、号码，适当调整每列的宽度。

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk_size_16_color_FFFFFF_t_70 4][]

然后将其视图切换为Details然后就能显示每列了。

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk_size_16_color_FFFFFF_t_70 5][]

拖拽完ListView后再在右边拖拽一些label、TextBox、Button等，并设置有意义的Name属性和Text显示。

右键项目--添加-类，添加联系人实体类

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk_size_16_color_FFFFFF_t_70 6][]

using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Text;
    using System.Threading.Tasks;
    
    namespace PhoneBook
    {
        class PhoneBook
        {
            public PhoneBook(string name, string phoneType, string phoneNumber)
            {
                this.Name = name;
                this.PhoneType = phoneType;
                this.PhoneNumber = phoneNumber;
            }
    
            private string name;
            public string Name
            {
                get { return name; }
                set { name = value; }
            }
    
            private string phoneType;
            public string PhoneType
            {
                get { return phoneType; }
                set { phoneType = value; }
            }
    
            private string phoneNumber;
            public string PhoneNumber
            {
                get { return phoneNumber; }
                set { phoneNumber = value; }
            }
        }
    }

### 联系人加载 ###

首先声明一个全局类变量存储联系人。

//声明一个全局 类变量 电话本键值对 key为string，value为联系人对象
     Dictionary<string,PhoneBook> phoneBooks;

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk_size_16_color_FFFFFF_t_70 7][]

然后在Form的加载完的方法中对ListView进行赋值

private void MainForm_Load(object sender, EventArgs e)
            {
                phoneBooks = new Dictionary<string, PhoneBook>();
                PhoneBook zhang = new PhoneBook("张三", "Nokia5300", "13810043231");
                PhoneBook li = new PhoneBook("李四", "MotoV3i", "13915441146");
                PhoneBook wang = new PhoneBook("王五", "SumSungD908", "13641259670");
    
                phoneBooks.Add(zhang.Name,zhang);
                phoneBooks.Add(li.Name,li);
                phoneBooks.Add(wang.Name,wang);
    
                FillList(phoneBooks);
            }

上面先封装三个联系人对象吗，然后以联系人的名字为key存进全局电话本对象。

private void FillList(Dictionary<string, PhoneBook> phoneBooks)
            {
                lvPhones.Items.Clear();
                foreach (PhoneBook phoneBook in phoneBooks.Values)
                {
                    ListViewItem item = new ListViewItem(phoneBook.Name);
                    item.SubItems.AddRange(new string[] { phoneBook.PhoneType, phoneBook.PhoneNumber });
                    lvPhones.Items.Add(item);
                }
            }

### 效果 ###

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk_size_16_color_FFFFFF_t_70 8][]

### 实现添加效果 ###

在添加按钮的点击事件中

private void btnAdd_Click(object sender, EventArgs e)
            {
                if (String.IsNullOrEmpty(txtName.Text) ||
                    String.IsNullOrEmpty(txtPhoneNum.Text) ||
                    String.IsNullOrEmpty(txtPhoneType.Text))
                {
                    MessageBox.Show("电话信息不能为空");
                    return;
                }
                PhoneBook phone = new PhoneBook(txtName.Text, txtPhoneType.Text, txtPhoneNum.Text);
                phoneBooks.Add(phone.Name,phone);
                FillList(phoneBooks);
    
                this.txtName.Text = "";
                this.txtPhoneNum.Text = "";
                this.txtPhoneType.Text = "";
            }

### 效果 ###

![20190816113350991.gif][]

### 实现删除效果 ###

private void btnDel_Click(object sender, EventArgs e)
            {
                if (this.lvPhones.SelectedItems.Count == 0)
                {
                    MessageBox.Show("没有选择删除项。");
                    return;
                }
                string key = this.lvPhones.SelectedItems[0].Text;
                phoneBooks.Remove(key);
                FillList(phoneBooks);
                this.txtName.Text = "";
                this.txtPhoneNum.Text = "";
                this.txtPhoneType.Text = "";
            }

### 效果 ###

![20190816113413939.gif][]

### 实现详情效果 ###

private void btnDetail_Click(object sender, EventArgs e)
            {
                if (this.lvPhones.SelectedItems.Count == 0)
                {
                    MessageBox.Show("没有选择。");
                    return;
                }
                string key = this.lvPhones.SelectedItems[0].Text;
                this.txtName.Text = phoneBooks[key].Name;
                this.txtPhoneNum.Text = phoneBooks[key].PhoneNumber;
                this.txtPhoneType.Text = phoneBooks[key].PhoneType;
                FillList(phoneBooks);
            }

### 效果 ###

![20190816113429966.gif][]

### 实现统计效果 ###

private void btnTotal_Click(object sender, EventArgs e)
            {
                string count = string.Format("总共有{0}个电话！", phoneBooks.Count.ToString());
    
                MessageBox.Show(count);
            }

### 效果 ###

![20190816113450706.gif][]

### 实现退出效果 ###

private void btnExit_Click(object sender, EventArgs e)
            {
                this.Dispose();
            }

### 效果 ###

![2019081611350761.gif][]

### 源码下载 ###

[https://download.csdn.net/download/badao\_liumang\_qizhi/11566183][https_download.csdn.net_download_badao_liumang_qizhi_11566183]

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[20190816113350991.gif]: https://img-blog.csdnimg.cn/20190816113350991.gif
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[2019081611350761.gif]: https://img-blog.csdnimg.cn/2019081611350761.gif
[https_download.csdn.net_download_badao_liumang_qizhi_11566183]: https://download.csdn.net/download/badao_liumang_qizhi/11566183