What is the importence of the INTERFACE? but not the
inheritence concept?and why we r declaring the empty methods
in that? we can directly implements with in the class know?
Tell me the importence?
I have one .Net application and i have two databases which
is in SQL server2000 and one more database in ORACLE? how
can i access the database from different Databases?
I have a component with 3 parameter and deployed to client
side now i changed my dll method which takes 4 parameter.How
can i deploy this without affecting the clent?s code ?
How to communicate via Remote proxy with Client?
a)MarshalByRef
b)Marshal by Value or Any thing else?
32
You need to be able to retrieve data from DataSet object
that has four DataTable objects. There are currently
UniqueConstraint and ForeignKeyConstraint Object on the
DataTable objects to enforce the data rules. You find that
you can retrieve the data from the individual DataTable
objects, but you are not able to retrieve the data from the
combination of DataTable objects in a Parent/Child manner.
What should you do to able to retrieve the data in a
Parent/Child manner?
a) Set the EnforceParentChild parameter of the DataSet to True.
b) Set the EnforceRelation parameter of the Relations
collection to True.
c) Add DataRelation objects to the Relations Collection to
make the DataSet present the data in Parent/Child manner.
d) Add a primary key and a foreign key to each of the
DataTable objects that should present the data in a
Parent/Child manner.
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