What are the steps you will take to improve performance?

0 Answers  

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What is ado and dao?

0 Answers  

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What are the two fundamental objects in ADO.NET?

8 Answers   Ksb, TCS,

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What is sql connection in ado.net?

0 Answers  

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What is azure ado?

1 Answers  

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What is ado or jdbc?

0 Answers  

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What is the difference between OLEDB Provider and SqlClient?

0 Answers  

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What are the different ado.net namespaces?

0 Answers  

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how to keep track of index in listbox items.

2 Answers  

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What is the difference between the clone() and copy() methods of the dataset class?

0 Answers  

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What is ado.net code?

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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