Answer Posted / dilip singh
A Dataset is a in memory representation of a collection of
Database objects including tables of a relational database
scheme. The dataset contains a collection of Tables,
Relations, constraints etc.,
It can be used for manipulating the data remotely and
finally updating the database with the modified data. This
way it enables disconnected means of working with data. This
improves performance
in terms of reducing the number of times a database is
accessed for data manipulations.
The dataset contains all the objects as a Collection of
objects. For example it contains the Database Tables as
DataTable objects. The data from the database is filled into
the dataset by using the DataAdapter.
All the related classes like DataSet, DataAdapter,
DataTable, DataRow etc are available inside the System.Data
namespace. This namespace can be used as follows:
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What do you mean by query string?
a web application needs to be created to accept the product name and quantity of a toy from a customer. After the customer has entered the product name the application needs to display the discounted price of the product to the customer (company is offering 35% discount on all products). The application should allow the customer to select the product name from a list box. and also while i'm data binding to a label with custom data binding with some declarations : "The Discounted Price is "+((System.Convert.todouble(lblprodprice.text)*(system.convert.todouble(txtqty.text)) - ((System.convert.todouble(lblprodprice.text)*(system.convert.todouble(txtqty.text)*0.35)). Where i need to give this declaration in asp.net 2.0.
