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TCS ADO.NET Interview Questions
Questions Answers Views Company eMail

Advantage of ADO.Net?

2 8785

How would u connect to database using .NET?

5 6342

Difference between DataReader and DataAdapter / DataSet and DataAdapter?

3 29269

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

1 16841

Differences between dataset.clone and dataset.copy?

2 5359





What are the two fundamental objects in ADO.NET?

8 18019

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

1726

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

7 19357

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

1 9747

What does ADO.NET consists of ?

7 9385

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

3 5906

What is ODP.NET ?

1 7364

What provider ADO.net use by default?

10 17219

What is the default view of Data Grid?

5 10345

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 13516

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Un-Answered Questions

what do u mean by bridge group? where we r using this one?

913


How to calculate motor bearing life - cycle (life time) (SKF bearing)

1601


how to do customization while doing oracle implementation. what is the role of functional consultant in customization?

1477


Do you think that most newspapers print what's really important, or what will make them sell more newspapers?

1478


Why perchloric acid used for potentiometric titration

1421






To modify an, existing worksheet. What steps are involved for: 1. Inserting and deleting rows and columns. 2. Printing cell formulas 3Jld displayed values 3. Using the page setup command

1067


if while coding power goes off , how to retrieve the codes?

964


We are planning to synchronized DG's with our captive plant in the event of black start of plant, but before sync we checked voltage of DG with our plant voltage and it varies from 5 V to 450 V. So in this condition how we can sync DG with plant ?

288


I have completed my B.E with (CSE) computer science and engineering ,i had a total no of backlogs=20 ,is there any chances to get the visa PLEASE HELP ME NE1 : MY ID=john_searchig143@yahoo.com .

818


Why Should Curing Not Be Done By Ponding And Polythene Sheets?

2


sir, whitch is the best book (writer name) for prepration of gate....

577


What is the diff between System.String and System.Text.StringBuilder classes?

2


why middleware can be difficult to write and test.

4452


What is Hardware Drivers?

955


How do I reconnect a Visual C++ project after I have branched or shared it to a new location?

354






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