I have an ObjectStateEntry \"entry\". I need to get a property value from this \"entry\" like so开发者_如何学Go, but I don\'t know how to specify the property I want. I use entry.OriginalValues(propNa
I allow users to specify the data source and connection details. When this is complete, I set the Entity connection string. How do I validate the database they have chosen against the entity 开发者_JA
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We have some code in which we need to maintain our own identity (PK) column in SQL. We have a table in which we bulk insert data, but we add data to related tables before the bulk insert is done, thus
I am using .Net Framework 4.0. I have an entity model (.edmx) and I have a menu option in my program for connecting to an existing database or creating a new one. When the user selects to create a new
I\'m getting a weird EF4 "Entity Framework v4" error when I do a select on the context: Schema specified is not valid. Errors:
I\'ve described my model using an Ado Entity开发者_C百科 Data Model file (*.edmx), and i wish now to generate my db schema and tables from it. Is it possible?
How c开发者_高级运维an I add a Unqiue index to a column like in SQL, so it wont allow duplicates in the column?
is it possible on the following try-catch to execute a set of statements as a transaction using ADO NET Entity Data Model?
How can I share the auto-generat开发者_运维知识库ed entity data model (generated object classes) amongst all layers of my C# web app whilst only granting query access in the data layer? This uses the
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