Sequence to connect and retrieve data from database useig
dataset ?
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Answer Posted / vaidyanathan r.
The sequence is
Step 1: Create a Connection Object with Connection String
Eg: <Provider**>Connection ActiveConnection = new
<Provider**>Connection(<ConnectionString>)
Step 2: Create a Command Object with Command Text and the
created Connection Object
Eg: <Provider**>Command Qry = new <Provider**>Command
(<Command Text>, ActiveConnection)
Step 3: Set the command Type for the created Command
Eg: Qry.CommandType = CommandType.Text
Step 4: Create Data Adapter with the created Command
Eg: <Provider**>DataAdapter da = new
<Provider**>DataAdapter(Qry*);
Step 5: Create a DataSet Object.
Eg: DataSet ds = new DataSet();
Step 6: populate the dataset by calling the fill method of
Data adaper against the Data set object
Eg: da.Fill(ds);
__________________________________________________________
*Qry contains a select query (or) Stored Procedure Name
containing a Select Query
** If the provider is SQL server then the Connection type
is SQLConnection, Command type is SQLCommand and Data
adapter type is SQLDataAdapter.
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