ADO.NET 2.0 - What is the Best Practice for binding Controls [Data in the data grid is to be binded with the contr

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What is the Best Practice for binding Controls [Data in the data grid is to be binded with the controls of some form ] ?

Total Answers and Comments: 2

Last Update: March 27, 2006

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March 27, 2006 14:24:27

rashid

Member Since: March 2006 Contribution: 7

RE: What is the Best Practice for binding Controls ...

public partial class UseDataList : System.Web.UI.Page
{
protected DataTable GetInventory()
{

String strConnection
@ Provider Microsoft.Jet.OLEDB.4.0;
DataSource C:\\northwind.mdb ;

DbProviderFactory f
DbProviderFactories.GetFactory( System.Data.OleDb );

DbConnection connection f.CreateConnection();
connection.ConnectionString strConnection;

connection.Open();

DbCommand command f.CreateCommand();
command.CommandText Select * from DotNetReferences ;
command.Connection connection;

IDataReader reader command.ExecuteReader();

DataTable dt new DataTable();
dt.Load(reader);
reader.Close();
connection.Close();
connection.Dispose();

return dt;
}

protected DataTable BindToinventory()
{
DataTable dt;
dt this.GetInventory();
this.DataList1.DataSource dt;
this.DataBind();
return dt;
}

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March 27, 2006 14:31:02

rashid

Member Since: March 2006 Contribution: 7

RE: What is the Best Practice for binding Controls ...

Some user controls are entirely self contained for example a user control displaying current stock quotes does not need to interact with any other content on the page. Other user controls will contain buttons to post back. Although it is possible to subscribe to the button click event from the containing page doing so would break some of the object oriented rules of encapsulation. A better idea is to publish an event in the user control to allow any interested parties to handle the event.

This technique is commonly referred to as event bubbling since the event can continue to pass through layers starting at the bottom (the user control) and perhaps reaching the top level (the page) like a bubble moving up a champagne glass.

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