I am porting an application running on LINQ-to-SQL to Entity Framework , and am having trouble finding an equivalent to ExecuteCommand :
db.ExecuteCommand("INSERT Infos (Title) VALUES ('this is an added title')");
I found this site which tells me that it is possible to implement ExecuteCommand as an extension method on your ObjectContext, leaving the existing code unchanged by adding this code to a static method in your project:
public static int ExecuteCommand(this ObjectContext objectContext,
string command) {
DbConnection connection = ((EntityConnection)objectContext.Connection).StoreConnection;
bool opening = (connection.State == ConnectionState.Closed);
if (opening)
connection.Open();
DbCommand cmd = connection.CreateCommand();
cmd.CommandText = command;
cmd.CommandType = CommandType.StoredProcedure;
try {
return cmd.ExecuteNonQuery();
}
finally {
if (opening && connection.State == ConnectionState.Open)
connection.Close();
}
}
But I've tried putting it (1) in the class where I use it, (2) in the Entity generated class file, (3) in a static class in the project, but always get various errors. Where do I need to put this method exactly?
The above site also said:
ExecuteCommand is being considered as an enhancement for a future release of the Entity Framework
Does ExecuteCommand() exist in the newest version of Entity Framework? I am using the Entity Framework that was installed with Visual Studio 2008 SP1.
.NET Framework 4的ObjectContext类具有ExecuteStoreCommand和ExecuteStoreQuery方法,这些方法似乎正是您所寻找的。
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