ADO.NET :: Unable To Update Data To Databse From Grid View

Sep 22, 2010

I have two tables in my database

using "innerconnect" i have show table content in grid view as INV_NO INV_DT DN_NO DN_DT LR_NO LR_DT .

where LR_NO is null .

I want to update it from grid view.

here DN_NO and INV_NO are primary keys

[Code].....

when i have fill the null values through grid view and click on button1 it shows data saved but it not saves to my data base tables

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