我最近对数据库(SQL Server)中的列和表的名称进行了一系列的更改。现在,我需要更新Linq到SQL模型(.DBML)文件以反映这一点。
过去,当我这样做时;我通常手动重命名列/表,然后必须遍历代码中的所有实例并相应地重命名。但是,您可以想象这很麻烦。
是否有一种更简单的方法来重构.DBML中的名称,类似于
“右键单击->重构->重命名”,但是是否要使用.DBML文件?
最佳答案
这正是我选择不使用dbml方式在项目中实现LINQ 2 SQL的原因。相反,我自己定义了类,并使用属性将其映射到表和列。我知道它的工作量很大。但它值得。
一个例子:
[Table(Name = "Transaction")]
public partial class Transaction
{
private decimal _amount;
private int _id
private DateTime _payDate;
private int _currencyId;
private EntityRef<Currency> _currencyMaster;
partial void OnLoaded();
partial void OnValidate(System.Data.Linq.ChangeAction action);
partial void OnCreated();
public Transaction()
{
_currencyMaster = default(EntityRef<Currency>);
OnCreated();
}
[Column(Storage = "_id", AutoSync = AutoSync.OnInsert, DbType = "Int NOT NULL IDENTITY", IsPrimaryKey = true, IsDbGenerated = true, UpdateCheck = UpdateCheck.Never)]
public int Id
{
get
{
return _id;
}
protected set
{
if ((_id != value))
{
OnPropertyChanging();
_id = value;
OnPropertyChanged("Id");
}
}
}
[Column(Storage = "_amount", DbType = "Decimal(18,2) NOT NULL", UpdateCheck = UpdateCheck.Never)]
public decimal Amount
{
get
{
return _amount;
}
set
{
if ((_amount != value))
{
OnPropertyChanging();
_amount = value;
OnPropertyChanged("Amount");
}
}
}
[Column(Storage = "_currencyId", DbType = "INT NOT NULL", CanBeNull = false, UpdateCheck = UpdateCheck.Never)]
public int CurrencyId
{
get
{
return _currencyId;
}
set
{
if ((_currencyId != value))
{
OnPropertyChanging();
_currencyId = value;
OnPropertyChanged("CurrencyId");
}
}
}
[Column(Storage = "_payDate", DbType = "DateTime NOT NULL", UpdateCheck = UpdateCheck.Never)]
public DateTime PayDate
{
get
{
return _payDate;
}
set
{
if ((_payDate != value))
{
OnPropertyChanging();
_payDate = value;
OnPropertyChanged("PayDate");
}
}
}
[Association(Name = "Transaction_Currency", Storage = "_currencyMaster", ThisKey = "CurrencyId", OtherKey = "Id", IsForeignKey = true)]
public Currency Currency
{
get
{
return _currencyMaster.Entity;
}
set
{
Currency previousValue = _currencyMaster.Entity;
if (((previousValue != value)
|| (_currencyMaster.HasLoadedOrAssignedValue == false)))
{
OnPropertyChanging();
if ((previousValue != null))
{
_currencyMaster.Entity = null;
previousValue.Transactions.Remove(this);
}
_currencyMaster.Entity = value;
if ((value != null))
{
value.Transactions.Add(this);
_currencyId = value.Id;
}
else
{
_currencyId = default(int);
}
OnPropertyChanged("Currency");
}
}
}
}
关于c# - 在Linq .DBML文件中重构表和列名的简便方法?,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/5418061/