Grid View add quantity if data already exists..

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I am having a datagrid view it has 3 columns
Column 1 = ProductId
Column 2 = Price
Column 3 = Quantity

My Question is
How to add quantity by 1 (+1) if the product id and with same price is repeated.
and it should not add the quantity by 1 if the productid is same but price is different..

please give me a small example with it bcoz i am not good in Grids..

Thanks in advanced,
A.Mohammed Owais.

Posted 1-Oct-12 3:55am

Mohammed Owais

Updated 1-Oct-12 3:59am

v2

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Herman<T>.Instance 1-Oct-12 10:06am

what have you tried so far?

1 solution

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Ahmed Mandur · Accepted Answer · 2012-10-01T04:55:00

Hi Mohammed ,

I have made an example for you to make the functionality you are asking for

here is the design as Screen
http://i.imgur.com/yc4s5.jpg[^]

then here is the code behind of the event Click of the button Add

C#

//Boolean to check if he has row has been
           bool Found = false;
           if (dataGridView.Rows.Count > 0)
           {

               //Check if the product Id exists with the same Price
               foreach (DataGridViewRow row in dataGridView.Rows)
               {
                   if (Convert.ToString(row.Cells[0].Value) == textBox_ProductId.Text && Convert.ToString(row.Cells[1].Value) == textBox_Price.Text)
                   {
                       //Update the Quantity of the found row
                       row.Cells[2].Value = Convert.ToString(1 + Convert.ToInt16(row.Cells[2].Value));
                       Found = true;
                   }

               }
               if (!Found)
               {
                   //Add the row to grid view
                   dataGridView.Rows.Add(textBox_ProductId.Text, textBox_Price.Text, 1);
               }

           }
           else
           {
               //Add the row to grid view for the first time
               dataGridView.Rows.Add(textBox_ProductId.Text, textBox_Price.Text, 1);
           }