Greetings everybody. I am sorry, if this was already asked before (searched in vain) or is really very simple, but i just can\'t get it. The MSDN definition of a Nullable type, states, that it is defi
This might sound crazy to you, but I need a Nullable<T> (where T is a struct) to return a different type for it\'s Value property.
Could some one help, how would I instruct automap to have not-null for a column? public class Paper : Entity
My current setup: I have an entity object with some properties, amo开发者_如何学Cng them an int Id. To communicate with the database, I\'ve created a repository with, among others, the following metho
I\'m creating a database access layer in native C++, and I\'m looking at ways to support NULL values.Here is what I have so far:
I have a property int? MyProperty as a member in my datasource (ObjectDat开发者_开发知识库aSource). Can I bind this to a TextBox, like
I have legacy DB that store dates that means no-date as 9999-21-31, The column Till_Date is of type DateTime not-null=\"true\".
In our own Jon Skeet\'s C# in depth, he discusses the 3 ways to simulate a \'null\' for value types: Magic value (e.g. earliest possible DateTime is taken开发者_如何学运维 to be \'null\')
In C# code I have a variable Guid? name.But,how to initialize this paramete开发者_Go百科r to null,since I cannot assign null for a guid typeSet the parameter value to DBNull.Value.param = New SqlParam
Here is a simplified version of one of my models: class ImportRule(models.Model): feed = models.ForeignKey(Feed)
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