Update 2 column from temporary gridview to existing table

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C#

Gridview

updating

.net c# - please help me, i want to update 2 column from temporary gridview to existing table.

Database table : productopening ([PRODUCTCODE][curqty])

Temporary gridview : ProductName(column 1), Balstock (column 9) (100 records need to update)

Productname and productcode are same record so you can match and update

want to update from temporary gridview to database table productopening

from one different datagridview to update into database table.

http://www.chltech.in/sample/database_table.png ( main database table)
http://www.chltech.in/sample/got_value.png ( Temporary datagridview)

want to update bal stock to curqty

Hope now you understand

Thank you in advance for help me