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TCS ADO.NET Interview Questions
Questions Answers Views Company eMail

Advantage of ADO.Net?

2 9498

How would u connect to database using .NET?

5 7322

Difference between DataReader and DataAdapter / DataSet and DataAdapter?

3 30298

What are the differences between RAW, AUTO and Explicit modes in retrieving data from SQL Server in XML format?

1 18425

Differences between dataset.clone and dataset.copy?

2 6069





What are the two fundamental objects in ADO.NET?

8 19496

how can implement dropdownlist in particular of dataset when try to update?

1998

Call a stored procedure from ado.net and pass parameter to it ?

7 20618

Where does ADO.NET and XML web services come in the architecture ?

1 10261

What does ADO.NET consists of ?

7 10399

What is the key feature of ADO.NET compared to ADO ?

3 6569

What is ODP.NET ?

1 7781

What provider ADO.net use by default?

10 18573

What is the default view of Data Grid?

5 11247

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 14127

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TCS ADO.NET Interview Questions


Un-Answered Questions

How does cloud computing provides on-demand functionality?

213


How do I remove a second operating system from my computer?

200


Which cpu used in blackberry technology?

212


What is ieee?

1


What is event in javascript?

178






what is a dimension and a dimension value?

1


Explain about serializable interface in java?

227


How node.js works?

51


What are class members by default?

268


How to call two different views from same action?

78


How to get help on debugger commands?

1365


How to test odbc dsn connection settings?

234


Explain how to purge deleted messages automatically in Outlook?

1


What is the use of all pass filter?

228


What is the mission of testing?

230