What is the provider being used to access oracle database?

0 Answers  

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Why is it important to close an ado.net application?

0 Answers  

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Explian About DataAdapters

0 Answers   BirlaSoft,

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What is reference by value how does it works in .net?

2 Answers   SQL Star,

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What provider ADO.net use by default ?

5 Answers   Accenture, BirlaSoft, Wipro,

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What is ole access?

0 Answers  

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List the 4 common ado.net namespaces?

0 Answers  

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What two types of data providers does ADO.NET supply? What determines which one you should use?

0 Answers   CDC,

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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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What is partial class?

0 Answers  

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Which database is the ado.net sql connection object designed for?

0 Answers  

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How do you handle data concurrency in .NET ?

9 Answers   Infogain, SunGard,

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