Hi,

I've created a simple shopping cart web app, and I'm using a Data Grid to display the shopping cart table. I inserted a textbox into a TemplateColumn, and in the code behind page, I use:
TextBox txtQuantity = (TextBox) DataGrid1.Items[i].FindControl("Quantity") to grab the value from each row. I then compare txtQuantity to DataGrid1.DataKeys[i] (the Quantity datafield is assigned as the DataFieldKey). But if the Quantity textbox is updated, the old one that was pulled from the database is still the value -- it's not reading my change. Any ideas? Thank you in advance.

__________________
Steve
iTek Corporation
http://itekcorp.com

How are you binding the data to the grid? Are you binding only once per page lifecycle/data operation? You should bind to the grid once when the page is loaded:
If Not IsPostback Then
    BindDataGrid()
End If

Then any time you make a change to the data (update records, add new records, etc). Otherwise, you are rebuilding the datagrid from data every time you load the page and your posted changed (those in the text boxes) are getting ignored.

Why are you using a template column with a textbox versus a bound column?

Peter

Thank you -- that did it! One of those "I can't believe I missed that" moments! I really appreciate it. I'm using a textbox because I want users to be able to update the quantity. Thanks again.

The BoundColumn puts a textbox in place of a value when the row is being edited. Sounds like you want ALL the rows to have that column editable without having to actually use an editcommand. That makes sense.

Peter

I've had an analog problem:

Any time I try to update my datagrid I get the same old values.

The reason is because I forgot the event sequence in my page:
In my Page_Load function I was binding the dataset to the datagrid, and this is the first event trapped after the update command click.
When it is trapped the other event it was too late, because the data was already binded with old values.

I just put a PostBack check, not to bind data when IsPostBack and I solved the problem.

I hope it could be helpful for you too,
bye,
Ale.

Alessandro Bernardi
BBros snc