本文整理汇总了VB.NET中System.Data.Objects.ObjectContext.AddObject方法的典型用法代码示例。如果您正苦于以下问题：VB.NET ObjectContext.AddObject方法的具体用法？VB.NET ObjectContext.AddObject怎么用？VB.NET ObjectContext.AddObject使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类System.Data.Objects.ObjectContext的用法示例。
在下文中一共展示了ObjectContext.AddObject方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的VB.NET代码示例。
示例1: ArgumentException
Dim newProduct As Product
' Define values for the new product.
Dim dateTimeString As String = "1998-06-01 00:00:00.000"
Dim productName As String = "Flat Washer 10"
Dim productNumber As String = "FW-5600"
Dim safetyStockLevel As Int16 = 1000
Dim reorderPoint As Int16 = 750
' Convert the date time string into a DateTime instance.
Dim sellStartDate As DateTime
If Not DateTime.TryParse(dateTimeString, sellStartDate) Then
Throw New ArgumentException(String.Format("The string '{0}'cannot be converted to DateTime.", dateTimeString))
End If
' Create a new Product.
newProduct = Product.CreateProduct(0, productName, productNumber, False, False, safetyStockLevel, _
reorderPoint, 0, 0, 0, DateTime.Today, Guid.NewGuid(), DateTime.Today)
Using context As New AdventureWorksEntities()
Try
' Add the new object to the context.
context.Products.AddObject(newProduct)
' Persist the new produc to the data source.
context.SaveChanges()
' Return the identity of the new product.
Return newProduct.ProductID
Catch ex As UpdateException
Throw New InvalidOperationException(String.Format("The object could not be added. Make sure that a " & _
"product with a product number '{0}' does not aleady exist.", _
newProduct.ProductNumber), ex)
End Try
End Using