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Asp.net Difference between DataReader and DataSet and DataAdapter in C#, VB.NET

Oct 12, 2012
Introduction:

In this article I will explain difference between datareader, dataset and dataadapter in asp.net.

Description:


DataReader

DataReader is used to read the data from database and it is a read and forward only connection oriented architecture during fetch the data from database. DataReader is used to iterate through resultset that came from server and it will read one record at a time because of that memory consumption will be less and it will fetch the data very fast when compared with dataset. Generally we will use ExecuteReader object to bind data to datareader. (Read More)

Sample code of datareader will be like this

C# Code


// This method is used to bind gridview from database
protected void BindGridview()
{
using (SqlConnection con = new SqlConnection("Data Source=SureshDasari;Integrated Security=true;Initial Catalog=MySampleDB"))
{
con.Open();
SqlCommand cmd = new SqlCommand("Select UserName,LastName,Location FROM UserInformation", con);
SqlDataReader dr = cmd.ExecuteReader();
gvUserInfo.DataSource = dr;
gvUserInfo.DataBind();
con.Close();
}
}
VB.NET Code


' This method is used to bind gridview from database
Protected Sub BindGridview()
Using con As New SqlConnection("Data Source=SureshDasari;Integrated Security=true;Initial Catalog=MySampleDB")
con.Open()
Dim cmd As New SqlCommand("Select UserName,LastName,Location FROM UserInformation", con)
Dim dr As SqlDataReader = cmd.ExecuteReader()
gvUserInfo.DataSource = dr
gvUserInfo.DataBind()
con.Close()
End Using
End Sub
DataSet

DataSet is a disconnected orient architecture that means there is no need of active connections during work with datasets and it is a collection of DataTables and relations between tables. It is used to hold multiple tables with data. You can select data form tables, create views based on table and ask child rows over relations. Also DataSet provides you with rich features like saving data as XML and loading XML data.

C# Code


// This method is used to bind gridview from database
protected void BindGridview()
{
SqlConnection con = new SqlConnection("Data Source=SureshDasari;Integrated Security=true;Initial Catalog=MySampleDB");
con.Open();
SqlCommand cmd = new SqlCommand("select UserName,LastName,Location from UserInformation", con);
SqlDataAdapter da = new SqlDataAdapter(cmd);
DataSet ds = new DataSet();
da.Fill(ds);
gvUserInfo.DataSource = ds;
gvUserInfo.DataBind();
}
VB.NET Code


' This method is used to bind gridview from database
Protected Sub BindGridview()
Dim con As New SqlConnection("Data Source=SureshDasari;Integrated Security=true;Initial Catalog=MySampleDB")
con.Open()
Dim cmd As New SqlCommand("select UserName,LastName,Location from UserInformation", con)
Dim da As New SqlDataAdapter(cmd)
Dim ds As New DataSet()
da.Fill(ds)
gvUserInfo.DataSource = ds
gvUserInfo.DataBind()
End Sub
DataAdapter

DataAdapter will acts as a Bridge between DataSet and database. This dataadapter object is used to read the data from database and bind that data to dataset. Dataadapter is a disconnected oriented architecture. Check below sample code to see how to use DataAdapter in code

C# Code


// This method is used to bind gridview from database
protected void BindGridview()
{
SqlConnection con = new SqlConnection("Data Source=SureshDasari;Integrated Security=true;Initial Catalog=MySampleDB");
con.Open();
SqlCommand cmd = new SqlCommand("select UserName,LastName,Location from UserInformation", con);
SqlDataAdapter da = new SqlDataAdapter(cmd);
DataSet ds = new DataSet();
da.Fill(ds);
gvUserInfo.DataSource = ds;
gvUserInfo.DataBind();
}
VB.NET Code


' This method is used to bind gridview from database
Protected Sub BindGridview()
Dim con As New SqlConnection("Data Source=SureshDasari;Integrated Security=true;Initial Catalog=MySampleDB")
con.Open()
Dim cmd As New SqlCommand("select UserName,LastName,Location from UserInformation", con)
Dim da As New SqlDataAdapter(cmd)
Dim ds As New DataSet()
da.Fill(ds)
gvUserInfo.DataSource = ds
gvUserInfo.DataBind()
End Sub

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26 comments :

Chetan J said...

hello sir,
i have one problem. that i need to show result in "Result.Text", like if "TextBox1.Text" has value of More Than 35 Then "Result.Text" Should Display Pass. Otherwise It Should Display Fail. How Can I do It Sir. Plaese Give A Demo On It. Please Sir.
Thank You.

SirigineediRavi said...

HI chetan J, For ur question ans is--->

int Marks = Convert.ToInt32(TextBox1.Text);
if (Marks >= 35)
Result.Text = "Pass";
else
Result.Text = "Fail";

Surya said...

Little more explanation of dataset and dataadapter wud be nice since its the advanced way and in current use for many web projects.

shirisha said...

hello sir
where can i get information on complete dot net.
iam an MCA student..

krishanpal shingh Chundawat said...

mind blowing work Mr.Suresh sir....
thanks for it

Anonymous said...

Very nice and clear explanation... fantastic work..

Lalit said...

hello suresh sir, as far as i know there is no need to open connection while using sqldataadapter. But you have used that in the example for sqldataadapter.Please let me know is there any need of that or not?

Anonymous said...

hello suresh sir,

I really like your mind blowing work for .net technology & again thank's for developed this type of site for .net programmer.

Anonymous said...

can u help me in encryption & decryption too....in ado.net

Anonymous said...

very gud sir

YOGESH said...

good work but little more explanation needed on each topic.

John said...

I need more information about this section, but you already did a good job!!!

sunil yadav said...

1Q- please give me (send me ) connection code of Biomatric fingerprint to system(laptop),
2Q- how to connect a Biomatric fingerprint machin to PC(system) connectionn in c# application,we used the DLL class of machine.

i need more information about Biomatric connection code in c#,

mayur shejwal said...

Please Help..
da.Fill(ds);
Error:The best overloaded method match for 'System.Data.Common.DbDataAdapter.Fill(System.Data.DataTable)' has some invalid arguments

pravesh kumar said...

this site and its contents so good for help
to get a chance and enhance in the it field
i need to help to continue update on this site
and send contents on mail
i am proud of u

Anonymous said...

Hi,
Very Nice site sir for .net...


Regard's
Rajveer singh Rana

Vignesh Vv said...

Hi,
HOW to connect c#.net with oracle database





Regards,
vignesh.v

Anonymous said...

Hi,

I have 3+ years of experience in dot net but i didnt use sql server. But in interviews more questions i'm facing in sql server. could you pls suggest me the topics to learn in sql server so that i can face interview.

Priyvrat said...

Good One...

Kaju said...

if two or more tables not having same column to make keys(foreign&primary) then how can i able to access the table for a specific event.

lavankatta said...

Thank You

Rajesh Pathakoti said...

Manta putinchav anna...

Anonymous said...

Dear Sir,
How can i add data from textbox to datagridvies at runtime?
i have 3 textbox and one insertbutton and 2 record in datagriveview.i want whenever i click on insert button the value from textbox add 3rd position into datagrideview.
pls help

kmcet said...

hi in data set and data adapter there is no connection close why where as in data reader there is connection close

iqbal dar said...

thanks!

Anonymous said...

Hi sir, which one is best suitable for windows application and web application.

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