What is sequence of code in retrieving data from database ?

3 Answers   Accenture, BirlaSoft,

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How to aggregating data across related tables?

0 Answers  

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Define different execute methods of ADO.NET command object ?

0 Answers   NA,

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What?s the role of the DataReader class in ADO.NET connections?

7 Answers   Honeywell, Ksb,

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What is concurrency? How will you avoid concurrency when dealing with dataset? (One user deleted one row after that another user through his dataset was trying to update same row. What will happen? How will you avoid the problem?)

0 Answers  

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Can a DataReader be used as a DataSource for a GridView. If it is so how will you handle paging.

3 Answers   Directi,

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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,

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Explain the ADO . Net Architecture ( .Net Data Provider) ?

2 Answers  

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What is the difference between connected environment and a disconnected environment?

2 Answers  

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How do we use stored procedure in ADO.NET and how do we provide parameters to the stored procedures?

0 Answers   SwanSoft Technologies,

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Explain the namespaces in which .net has the data functionality class.

0 Answers  

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In how many ways we can retrieve table records count? How to find the count of records in a dataset?

0 Answers  

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