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飞翔的大胖兔子

于 2019-06-20 00:08:04 发布

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本文链接：https://blog.youkuaiyun.com/qq_27151549/article/details/92853693

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此博客展示了一个用 C# 编写的报名系统代码。包含窗口布局、按钮点击事件处理、复选框选择逻辑以及文件读取等功能。可实现报名信息的添加、保存和查询，对单人项目报名数量有限制。

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using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

namespace _18kaoshi
{
/// <summary>
/// MainWindow.xaml 的交互逻辑
/// </summary>
public partial class MainWindow : Window
{

public MainWindow()
{
InitializeComponent();
this.WindowStartupLocation = WindowStartupLocation.CenterScreen;
}

private void Button1_Click(object sender, RoutedEventArgs e)
{
if (count3==0)
{
MessageBox.Show("至少选择一个项目！", "提示", MessageBoxButton.OK);
}
else
{
StringBuilder sb = new StringBuilder();
sb.Append(this.textBox1.Text + ",");
sb.Append(this.textBox2.Text + ",");
sb.Append(s1 + ",");
sb.Append(this.comboBox1.Text + ",");
if (count1==0)
{
sb.Append("无,无");
if (count2==0)
{
sb.Append(",无");
}
else
{
sb.Append(","+s2);
}
}
else if (count1==1)
{
sb.Append(sb1.ToString()+"无");
if (count2 == 0)
{
sb.Append(",无");
}
else
{
sb.Append(","+s2);
}

}
else if (count1 == 2)
{
sb.Append(sb1.ToString());
if (count2 == 0)
{
sb.Append("无");
}
else
{
sb.Append(s2);
}
}
// MessageBox.Show(sb.ToString(), "提示", MessageBoxButton.OK);
Registration registration = new Registration(sb.ToString());

s1 = "";
s2 = "";
sb1.Clear();
count1 = 0;
count2 = 0;
count3 = 0;
foreach (var v in StackPanel2.Children)
{
CheckBox b = v as CheckBox;
b.IsChecked = false;
}
foreach (var v in StackPanel3.Children)
{

CheckBox b = v as CheckBox;
b.IsChecked = false;
}
textBox3.Text += (registration.toString() + "\r\n");
}

}

string s1, s2;
StringBuilder sb1 = new StringBuilder();
int count1 = 0, count2 = 0, count3 = 0;

private void CheckBox1_Click(object sender, RoutedEventArgs e)
{
CheckBox cb = e.Source as CheckBox;
if (cb.IsChecked==true)
{
count1 += 1;
count3 += 1;

}
else
{
count1 -= 1;
count3 -= 1;
}
if (count1>2)
{
cb.IsChecked = false;
count1 -= 1;
MessageBox.Show("单人项目限报两项！", "提示", MessageBoxButton.OK);
}
if (cb.IsChecked == true)
{
sb1.Append(cb.Content.ToString() + ",");
// MessageBox.Show(sb1.ToString(), "提示", MessageBoxButton.OK);
}
}

private void Button3_Click(object sender, RoutedEventArgs e)//读文件
{
string path = AppDomain.CurrentDomain.BaseDirectory + "报名.txt";
string[] s = File.ReadAllLines(path, Encoding.Default);
List<Registration> registrations = new List<Registration>();

using (StreamReader sr = new StreamReader(path, Encoding.Default))
{
string line;
while ((line = sr.ReadLine()) != null && line!="")
{
MessageBox.Show(line, "提示", MessageBoxButton.OK);
new Registration(line);
}
}

if (this.textBox1.Text!="")
{

foreach (var v in s)
{

if (v.Contains(textBox1.Text))
{

textBox3.Text = v;
}
}
}
else if (textBox2.Text != "")
{
foreach (var v in s)
{

if (v.Contains(textBox2.Text))
{

textBox3.Text = v;
}
}
}
else
{
MessageBox.Show("请输入姓名或学号！", "提示", MessageBoxButton.OK);
}

}

private void Button2_Click(object sender, RoutedEventArgs e)
{
try
{
string path = AppDomain.CurrentDomain.BaseDirectory + "报名.txt";
MessageBox.Show(path, "提示", MessageBoxButton.OK);
File.WriteAllLines(path, textBox3.Text.Split(new string[] { "\r\n" }, StringSplitOptions.None), Encoding.Default);
textBox3.Text = "";
}
catch (Exception err)
{
MessageBox.Show(err.Message, "写入失败!");
}
}

private void CheckBox2_Click(object sender, RoutedEventArgs e)
{
CheckBox cb = e.Source as CheckBox;
if (cb.IsChecked == true)
{
count2 += 1;
count3 += 1;
}
else
{
count2 -= 1;
count3 -= 1;
}
if (count2 > 1)
{
cb.IsChecked = false;
MessageBox.Show("多人项目限报一项！", "提示", MessageBoxButton.OK);
}
if (cb.IsChecked == true) s2 = cb.Content.ToString();
}

private void Group1_Checked(object sender, RoutedEventArgs e)
{
RadioButton r = e.Source as RadioButton;
if (r.IsChecked == true) s1 = r.Content.ToString();
}

}
}

<TextBox Name="textBox1" Grid.Column="1" Grid.Row="0" >请输入学号</TextBox>
<TextBox Name="textBox2" Grid.Column="1" Grid.Row="1" >请输入姓名</TextBox>

<ComboBox Name="comboBox1" Margin="10 5 10 0" Grid.Column="1" Grid.Row="2" VerticalAlignment="Top" SelectedIndex ="0">
<ComboBoxItem>机电与信息工程学院</ComboBoxItem>
<ComboBoxItem>商学院</ComboBoxItem>
<ComboBoxItem>法学院</ComboBoxItem>
<ComboBoxItem>数学院</ComboBoxItem>
<ComboBoxItem>艺术学院</ComboBoxItem>
<ComboBoxItem>文化传播学院</ComboBoxItem>
<ComboBoxItem>东北亚学院</ComboBoxItem>
</ComboBox>