What is the maximum pool size in ado.net connection string?

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What is the current version of entity framework?

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What is difference between dataset and datatable?

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Explain the overview of ado.net architecture?

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What do you know about ado.net's objects?

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What are the Different layers in ADO.Net?

10 Answers   eXensys,

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Is bulk insert faster than insert?

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What is ado circle?

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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 microsoft ado.net?

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

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What providers does Ado.net uses?

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