private void Button_Click(object sender, RoutedEventArgs e)
{
Regex re = new Regex("[^0-9.-]+");
if (string.IsNullOrEmpty(textbox1.Text) || re.IsMatch(textbox1.Text))
{
MessageBoxResult mes = MessageBox.Show("请输入数字", "错误", MessageBoxButton.OK);
}
try
{
using (var context = new BankContext2())
{
var vaultinfo = context.VaultInfo.Where(x => x.Account == "admin").FirstOrDefault();
if (vaultinfo == null)
{
vaultinfo = new VaultInfo
{
Id = Guid.NewGuid(),
Account = "admin",
Password = "******",
Name = "管理员",
Balance = 10000
};
context.VaultInfo.Add(vaultinfo);
context.SaveChanges();
}
var recordinfo = new RecordInfo
{
Id = Guid.NewGuid(),
AccountId = vaultinfo.Id,
Amount = Convert.ToDouble(textbox1.Text),
Remark = "取钱",
CreateTime = DateTime.Now
};
recordinfo.Balance = vaultinfo.Balance - recordinfo.Amount;
if (recordinfo.Balance < 0)
{
throw new Exception("余额不足！");
}
vaultinfo.Balance = recordinfo.Balance;
//添加
context.RecordInfo.Add(recordinfo);
//更新
context.VaultInfo.Attach(vaultinfo);
context.Entry(vaultinfo).State = System.Data.Entity.EntityState.Modified;
//存储到数据库
context.SaveChanges();
}
}
catch (Exception ex)
{
MessageBoxResult mes2 = MessageBox.Show(ex.Message, "错误", MessageBoxButton.OK);
//throw new Exception(ex.Message);
}
MessageBoxResult mes3 = MessageBox.Show("操作成功", "提示", MessageBoxButton.OK);
Close();
}
/// <summary>
/// 重写OnStartup
/// </summary>
/// <param name="e"></param>
protected override void OnStartup(StartupEventArgs e)
{
///
string connectionString = AppDomain.CurrentDomain.BaseDirectory + @"Data\";
//string connectionString = AppDomain.CurrentDomain.BaseDirectory;
AppDomain.CurrentDomain.SetData("DataDirectory", connectionString);
SQLiteBaseForEF.ExistsDBFile(connectionString, "Bank.s3db");
//初始一个admin账户
using (var context = new BankContext2())
{
var info = context.VaultInfo.Where(x => x.Account == "admin").FirstOrDefault();
if (info == null)
{
info = new VaultInfo
{
Id = Guid.NewGuid(),
Account = "admin",
Password = "******",
Name = "管理员",
Balance = 10000
};
context.VaultInfo.Add(info);
context.SaveChanges();
}
//var upList = context.RecordInfo.Where(x => x.Remark == "测试").ToList();
//for (int i = 0; i < 5; i++)
//{
// var recordinfo = new RecordInfo
// {
// Id = Guid.Empty,
// AccountId = Guid.Empty,
// Amount = 0,
// Remark = "测试",
// CreateTime = DateTime.Now
// };
// upList.Add(recordinfo);
//}
//foreach(var item in upList)
//{
// if(item.Id == Guid.Empty)
// {
// item.Id = Guid.NewGuid();
// context.RecordInfo.Add(item);
// }
// else
// {
// item.Remark = "测试";
// context.RecordInfo.Attach(item);
// context.Entry(info).State = System.Data.Entity.EntityState.Modified;
// }
//}
//context.SaveChanges();
//var recordinfo = new RecordInfo
//{
// Id = Guid.NewGuid(),
// AccountId = Guid.Empty,
// Amount = 1,
// Remark = "存钱",
// CreateTime = DateTime.Now
//};
}
base.OnStartup(e);
}