How do we use stored procedure in ADO.NET and how do we provide parameters to the stored procedures?

0 Answers   SwanSoft Technologies,

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Explain how can we load multiple tables in to dataset?

0 Answers  

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How can we save all data from dataset?

0 Answers  

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Define ado.net?

0 Answers  

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What is the difference between connected and disconnected environment?

0 Answers  

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How to add an aggregate column?

0 Answers  

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What is the meaning of executenonquery?

0 Answers  

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What are the steps in connecting to database?

3 Answers   IBM, Microsoft,

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How to check if a datareader is closed or opened?

1 Answers  

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What is ado.net object model?

0 Answers  

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how can implement dropdownlist in particular of dataset when try to update?

0 Answers   TCS,

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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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