LinqToSql - “提交时插入”
我正在尝试在我的一个表中插入一行， 所以我在网上查找使用 DATACONTEXT 的示例并找到了这个：
protected void buttonSave_Click(object sender, EventArgs e)
{
using (NorthwindDataContext context = new NorthwindDataContext())
{
Customer customer = new Customer
{
CustomerID = textBoxCustomerID.Text,
CompanyName = textBoxCompanyName.Text,
ContactName = textBoxCustomerName.Text,
ContactTitle = textBoxTitle.Text,
Address = textBoxAddress.Text,
City = textBoxCity.Text,
Region = textBoxRegion.Text,
PostalCode = textBoxPostalCode.Text,
Country = textBoxCountry.Text,
Phone = textBoxPhone.Text,
Fax = textBoxFax.Text
};
context.Customers.InsertOnSubmit(customer);
context.SubmitChanges();
}
}
但是当我尝试使用它并编写： context.Guides. - 现在我看不到 InsertOnSubmit 方法.. 有人知道为什么吗？
谢谢， 尤尼。
I'm trying to insert a row in to one of my tables,
so I look over the web to find an example for using the DATACONTEXT and found this one:
protected void buttonSave_Click(object sender, EventArgs e)
{
using (NorthwindDataContext context = new NorthwindDataContext())
{
Customer customer = new Customer
{
CustomerID = textBoxCustomerID.Text,
CompanyName = textBoxCompanyName.Text,
ContactName = textBoxCustomerName.Text,
ContactTitle = textBoxTitle.Text,
Address = textBoxAddress.Text,
City = textBoxCity.Text,
Region = textBoxRegion.Text,
PostalCode = textBoxPostalCode.Text,
Country = textBoxCountry.Text,
Phone = textBoxPhone.Text,
Fax = textBoxFax.Text
};
context.Customers.InsertOnSubmit(customer);
context.SubmitChanges();
}
}
but when I try to use it and write : context.Guides. - now I can't see the InsertOnSubmit method..
does some one know why?
thanks,
yoni.
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如果您使用的是 LINQ-to-SQL 类模型 (*.dbml)，则 Guides 表必须出现在设计器中。否则，Guides 类必须从 System.Data.Linq.Mapping.MetaTable 派生。
If you are using a LINQ-to-SQL Classes model (*.dbml), the Guides table must appear in the designer. Otherwise, the Guides class must descend from System.Data.Linq.Mapping.MetaTable.
指南必须是不实现 InsertOnSubmit 方法的对象。
Guides must be an object that doesn't implement the InsertOnSubmit method.