ASP.NET GridView Tutorial - Object datasource in asp net Part 3

Database, Information Technology

ASP.NET GridView Tutorial

301 Lessons

Object datasource in asp net Part 3

Text version of the video
http://csharp-video-tutorials.blogspot.com/2013/02/object-datasource-in-aspnet-part-3.html

Slides
http://csharp-video-tutorials.blogspot.com/2013/10/part-3-object-datasource-in-aspnet.html

All GridView Text Articles
http://csharp-video-tutorials.blogspot.com/p/free-asp.html

All GridView Slides
http://csharp-video-tutorials.blogspot.com/p/blog-page.html

All Dot Net and SQL Server Tutorials in English
https://www.youtube.com/user/kudvenkat/playlists?view=1&sort=dd

All Dot Net and SQL Server Tutorials in Arabic
https://www.youtube.com/c/KudvenkatArabic/playlists

In Part 2 of the asp.net gridview tutorial, we discussed about sqldatasource controls. Please watch Part 2, before proceeding with this video.

Sqldatasource control include sql queries, in the HTML of the aspx page. This may lead to the complexity of the project. That’s why, in real time, sqldatasource control is very rarely used.

Let us understand object datasource, with an example.

Let’s assume our project has the following 3 layers.
1. Presentation Layer – This includes the asp.net web application project, where we have webforms, their code-behind files etc.
2. Business Logic Layer – This is usually a class library project, which includes business objects, like customers, orders, products etc.
3. Data Access Layer – This is usually a class library project, that is responsible for all the database CRUD(Create, Read, Update and Delete) operations.

The above 3 layers interact in the following way.
Presentation Layer – Business Logic Layer – Data Access Layer – Database

Presentation Layer, calls Business Logic Layer which in turn will call, Data Access Layer. Data Access Layer performs all the CRUD operations on the database.

In reality, we may have each layer in it’s own project, but for the purpose of this demo, we will include the data access layer classes in our asp.net web application. We will discuss about building an asp.net web application with n-tier architecture and the difference between layers and tiers in a later video session.

At this point, drag “ObjectDataSource” control from the toolbox and drop it on WebForm1.aspx. Steps to configure “ObjectDataSource”

1. Flip the webform to design mode
2. Click on the little right arrow(Smart Tag). This should display “ObjectDataSource Tasks”
3. Click on “Configure DataSource” link
4. From “Choose your business object” dropdownlist select “Demo.ProductDataAccessLayer” and click “Next”
5. From “Choose a method” dropdownlist, select “GetAllProducts()” and click “Finish”

At this point, we are done, configuring ObjectDataSource control. Now, drag a GridView control from the toolbox and drop it on the webform. Finally associate “ObjectDataSource1” with “GridView1” control using DataSourceID property of “GridView1” control. Run the application and data from “tblProducts” table should now be displayed in the gridview control.

    Access DataSource in asp.net AccessDataSource in asp.net Alert another gridview ascending asp net gridview access database asp.net asp.net c# bind xml to gridview asp.net data source controls asp.net datagridview asp.net datasource controls asp.net get data from access database asp.net gridview asp.net gridview bind to xml asp.net gridview edit asp.net gridview formatting asp.net gridview sqldatasource asp.net gridview xml c# asp.net gridview xml file asp.net ms access database example asp.net objectdatasource explained between bi-directional bidirectional bind xml file to gridview in asp.net binding xml file to gridview business objects C# c# accessdatasource c# data source object c# datagrid example c# get data from access database c# gridview sqldatasource c# sql data source connection string c# sqldatasource example c# sqldatasource selectcommand c# xslt example c# xslt transform xml document c# xslt tutorial c#.net cells changing data checkbox client-side code colspan CompareAllValues compute concurrency confirm ConflictDetection conflictdetection property content control controls convert xml node to attribute custom paging Data DataFormat String DataFormatString datagrid in asp.net datagrid in c# DataKeyNames dataset datasource datasource controls default paging delete delete confirmation delete data Deleting deleting data descending detailed data details view details view in asp.net DetailsView difference display Displaying displaying gridview document Drill Down Drilldown drilling down dropdownlist edit edit and update editing EmptyDataTemplate EmptyDataText event example Excel Export exporting footer footer row format formatting gridview at runtime Formatting gridview in code generate Grid View gridview gridview currency format gridview datasource xml file gridview date format gridview ms access database gridview retrieve templatefield value gridview RowDataBound gridview template gridview templatefield gridview templatefield get control GridViewDeletedEventArgs hierarchical data how how to display date in gridview without time How to get value from TemplateField in GridView how to pass data from gridview to another page in asp.net image field imagefield images implement implementing insert inside javascript jquery KeepInEditMode Merging. merge microsoft multiple rows nested nested gridview nesting no data no rows in datasource object datasource object datasource in asp.net objectdatasource objectdatasource in asp.net order OverwriteChanges page page numbers page size paging pdf properties read xml file with child nodes c# Repeater Retrieve ItemTemplate control value in Gridview row cells rowcommand rowdatabound rowdatabound event RowDataBound example RowDeleted event RowUpdated several rows show date only in gridview showing sort sort arrows sort images sortable Sorting sqldatasource sqldatasource in asp.net stored procedures summary data templatefield totals tutorial two or more rows Update update data Updated updating updating data Use use optimistic concurrency using validation Validation Controls web server when without without data source controls without datasource controls Word workbook working with xmldatasource in asp.net xslt basics xslt example xslt to transform xml to xml xslt transformation xslt transformation c# example