make a login control??

1 Answers  

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Explain the difference in an abstract class and an interface?

0 Answers  

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What are the data providers used in ado.net

0 Answers  

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What is executequery?

0 Answers  

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Diff b/w DataReader,Dataset and Data table?

5 Answers   HCL,

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FetCh Records No 5 to 10 From Dataset

4 Answers  

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ADO and ADO.NET differences ?

2 Answers   Microsoft,

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Explain About ado.net components/objects. Usage of data adapters and tell the steps to retrieve data.

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 ado net stands for?

0 Answers  

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What are the functions of oledbdataadapter?

4 Answers  

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What is the difference between ado.net and entity framework?

0 Answers  

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