How do you find the count of records in a dataset?

0 Answers  

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What is ado.net explain with diagram?

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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can we create synonymn in ms access,sql server,my sql if so explain me with example

0 Answers  

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What is connected architecture in ado.net?

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What are the 3 major types of connection objects in ado.net?

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What does sqldatareader return?

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can we execute trigger normally at the desired time?

3 Answers   Microsoft,

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How to work with disconnected data - the dataset and sqldataadapter?

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Using Ado.net, what front ends and back ends can you use?

10 Answers  

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What is the use of data grid?

0 Answers  

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what is execute scalar?

11 Answers   Atharva Infotech, Dohatec New Media, Make eIT, Protech,

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