1. How do I put null value into Datetime field (SQL server)?
2. Can EntityCollection reserve?
3. Can EntityCollection clone?

quannv wrote:

1. How do I put null value into Datetime field (SQL server)?

entity.SetNewFieldValue(fieldindex, null);

1. Can EntityCollection reserve?

You mean, reverse? No, you've to do that in a loop (can be done in 1 loop, in place)

1. Can EntityCollection clone?

You want to clone the entities too, or just the collection?

1. Can EntityCollection reserve?

You mean, reverse? No, you've to do that in a loop (can be done in 1 loop, in place)

Ok, I can do like that, but the reverse function is better.

1. Can EntityCollection clone?

You want to clone the entities too, or just the collection?

Clone the entities too.

What are you trying to accomplish with the cloned collection?