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TCS ADO.NET Interview Questions
Questions Answers Views Company eMail

Advantage of ADO.Net?

2 8610

How would u connect to database using .NET?

5 6212

Difference between DataReader and DataAdapter / DataSet and DataAdapter?

3 29088

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

1 16559

Differences between dataset.clone and dataset.copy?

2 5227





What are the two fundamental objects in ADO.NET?

8 17806

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

1672

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

7 19201

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

1 9623

What does ADO.NET consists of ?

7 9224

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

3 5805

What is ODP.NET ?

1 7277

What provider ADO.net use by default?

10 17057

What is the default view of Data Grid?

5 10198

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 13331

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Un-Answered Questions

How much load can take a 16 mm aluminum cable 3 phase

583


How to pass parameters in RMI?

987


I have one flat file,in this file how many columns are there i don't know,but one ename column is there , just i want to cut the surname, so how to cut the surname, any one know the answer please guide me ? ename ----- tapan kumar nayak bala murugan kutal chkrobarthy biswo My output is like that OUTPUT ------ nayak murugan chakrobarthy biswo

2304


In turbine, what does term CDP, NI, NH, HSSOC, means

1419


what is meant by 3rd hormonics ?

731






What is Production scheduling Profile and use of it?

473


How to assign the terms and conditions to the contracts?

797


What is confirmed fact in dataware housing?

4149


what will we do after getting a degree in biomedical engineering ? what is the role of biomedical engineer and what do they do ? what is biomedical engineering ?

565


Can explain about the validations and in your project where did u used the validations?

4683


what is the Relationship between EJB and CORBA architecture?

2735


What is Spawn Threshold? 

809


How to Implement the VB TwipsPerPixel in Delphi ?

754


What problem does Apache Flume solve?

5


how 650 volts creates? where is use?

958






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