What are the ado.net connection pooling parameters?

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What are the three Objects of ADO.

10 Answers  

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What is the key feature of ADO.NET compared to ADO ?

3 Answers   TCS,

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Define data access layer?

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Name which operations can you not perform on an ado.net dataset?

0 Answers  

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Which is the feature of ado.net?

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What is ado.net and its architecture?

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What are the different namespaces used in the project to connect the database?

3 Answers  

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What is serialization and de-serialization in .net? How can we serialize the dataset object?

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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What is meant by ‘transaction’ in a database and what are the ‘properties of transaction’?

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What is datacolumn and how it is used?

2 Answers  

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