What is the use of data grid?

0 Answers  

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Command objects uses, purposes and their methods.

0 Answers  

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What are the uses of Stored Procedure?

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What does executequery return?

0 Answers  

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How do you sort the data in datagrid?

4 Answers   Choice Solutions,

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what is different between SqlCommand object and Command Behaviour Object

3 Answers  

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How will you fill the gridview by using datatable object at runtime?

0 Answers  

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What is the difference between a Dataset and DataReader? Can dataReader hold data from multiple tables?

3 Answers   Fulcrum Logic, Merrill Lynch,

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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 are types of Dataset ?

6 Answers   HCL,

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What is ado.net full form?

0 Answers  

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What is ado.net and its features?

0 Answers  

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