Advantage of ADO.Net?2 8610
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Difference between DataReader and DataAdapter / DataSet and DataAdapter?3 29088
What are the differences between RAW, AUTO and Explicit modes in retrieving data from SQL Server in XML format?1 16559
Differences between dataset.clone and dataset.copy?2 5227
What are the two fundamental objects in ADO.NET?8 17806
Call a stored procedure from ado.net and pass parameter to it ?7 19201
Where does ADO.NET and XML web services come in the architecture ?1 9623
What does ADO.NET consists of ?7 9224
What is the key feature of ADO.NET compared to ADO ?3 5805
What is ODP.NET ?1 7277
What provider ADO.net use by default?10 17057
What is the default view of Data Grid?5 10198
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.Controls; 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 13331
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I have one flat file,in this file how many columns are there i don't know,but one ename column is there , just i want to cut the surname, so how to cut the surname, any one know the answer please guide me ? ename ----- tapan kumar nayak bala murugan kutal chkrobarthy biswo My output is like that OUTPUT ------ nayak murugan chakrobarthy biswo
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