What provider ADO.net use by default ?

5 Answers   Accenture, BirlaSoft, Wipro,

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How can you add or remove rows from the datatable object of dataset?

0 Answers  

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What connected data?

0 Answers  

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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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How do you implement locking concept for dataset?

0 Answers  

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What are the steps in connecting to database?

3 Answers   IBM, Microsoft,

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How to perform sorting on a table in ADO.NET?

0 Answers   Petranics Solutions,

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what are types of Dataset ?

6 Answers   HCL,

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how to display empty table to datagrid

3 Answers   LG Soft,

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What you mean by filtering of data?

0 Answers  

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What is the default timeout specified for "sqlcommand.commandtimeout" property?

0 Answers  

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What are two types of transaction supported by ado.net?

0 Answers  

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