What is dataset object? Explain the various objects in dataset.

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Features and disadvantages of dataset?

2 Answers   CarrizalSoft Technologies, Infosys, Microsoft, Sampath Software,

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What are the advantages of oledb compared with other classes?

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how you will deal result set? How do you sort a dataset?If a dataset contains 100 rows, how to fetch rows between 5 and 15 only?

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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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Which object holds only data and does not interact with data source?

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What is difference between ado.net and asp net?

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What is ole data type?

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What are the different methods by which we can populate a dataset?

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Does sqlclient and oledb class share the same functionality?

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Explain the advantage of ADO.Net?

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How to pass multiple tables in datasets simultaneously?

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