how to add Count and Totalprice columns to gridview ?

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SQL-Server-2005

C#

SQL-Server

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I select column from databse and I put then in datatable like that

C#

DataTable dtt = d.select("select ItemID,ItemName,SellingPrice,ImageUrl from TItem where ItemID in (" + oCookie.Value + ")");

and after that I put them in the gridview like that

C#

GridView2.DataSource =dtt;
 GridView2.DataBind();

now I have three column in grid

my question

how to add tow column too to the grid

first column is textbox to modify the quantity

second column is the total to calculate the total price???????????

help me please I had I lot of time to do and I didn't reach to it

Posted 27-Apr-12 3:02am

Sarah Mohammed77

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Reza Ahmadi · Answer 1 · 2012-04-27T03:14:00

hi,
you can use DataTable.Compute to add an evaluating formula to a DataColumn. In order to add 'Sum' column you need to just add a column to the DataTable and ,then, use Compute method to define a formula for that column.
http://msdn.microsoft.com/en-us/library/system.data.datatable.compute.aspx[^]
In order to add a textbox to your grid, you can define a TemplateField in your grid, put a textbox in it and then define an event handler to run a particular code for changing it.

I hope it helps,
Cheers