Answer / bhavesh chhatrala

Datareader and Dataset are the two fundamental objects in
ADO.NET

Answer / satyambabu

two fundamental objects in ADO.NET
Datareader:- connected architecture
and
Dataset :-disconnected architecture

Answer / apuroop

DataSet
DataReader
Dataset is disconnected archtecture
Data Reader is Connected Architecture

Answer / manoj

two fundamental objects in ADO.NET
connected architecture (like Datareader)
and
disconnected architecture (like Dataset)

Answer / sonal

DATA PROVIDER(comprises of connection, command, data reader and data adapter)-> CONNECTED Architecture

DATA SET-> DISCONNECTED Architecture

Answer / gourav jain

1) Data set
2) .Net data provider
comprises of (Connection object, Command object, Data
Reader, Data Adapter).

Answer / roy

ds
dr

Answer / loysg

connection string,commond

Define Execute Reader?

0 Answers  

What is the difference between executenonquery () and executescalar ()?

0 Answers  

What are the steps in connecting to database?

3 Answers   IBM, Microsoft,

Explain what are the steps to connect to a database?

0 Answers  

What is microsoft ole db provider for sql server?

0 Answers  

How many commands does the oledbcommand takes?what are they?

2 Answers  

What does datareader object do?

0 Answers  

What is ado code?

0 Answers  

What is connection string?

0 Answers  

Advantage of ADO.Net?

2 Answers   QualSoft, TCS,

What is the full form of ado?

0 Answers  

How To Update A Column In A DataGrid Using C#.NET? I am getting InvalidCastException as (Specified cast is not valid) while updating 2nd column in a datagrid? Id,firstname,lastname are the three columns of my datagrid respectively. I wanted to edit the second column(lastname) and update it. I did the following code in DataGrid's updatecommand(),but failed to update ! Int varid=(int)DataGrid1.DataKeys[e.Item.ItemIndex]; TextBox lnm=(TextBox)e.Item.Cells[2].Controls[0]; string str=lnm.Text ; SqlCommand cmd=new SqlCommand("update customer set lastname='" + str + "' where id=" + varid + "",con); cmd.ExecuteNonQuery(); DataGrid1.EditItemIndex=- 1; DataGrid1.DataBind();

2 Answers   Mind Tree, TCS,