What is difference between ado and other data object?

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We all know that Dataset is purely disconnected architechure, but we also know that we can update the changes made to the dataset can be updated in the backend database. when there is no connection how does the update happedn?

6 Answers   Accenture, FastStream,

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Can we bind one datareader wid two dropdown list?

5 Answers  

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About ADO and its objects ?

1 Answers   DELL,

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What is executequery?

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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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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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Give an example of a .net application which connects to microsoft access database using ado.net classes.

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What is two way data binding android?

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What are two important objects of ADO.Net?

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Define the executescalar method?

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How to check if a datareader is closed or opened? IsClosed()

0 Answers  

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