can you post a small application that replicates the issue?
--
Regards,
Alvin Bruney [MVP ASP.NET]
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-------------------------------------------------------
"Kel Good" <kgood@customsoftware.ca> wrote in message
news:uA$EWLH0FHA.2348@TK2MSFTNGP15.phx.gbl...[color=blue]
> Anyone? Anyone? Buhler?
>
> "Kel Good" <kgood@customsoftware.ca> wrote in message
> news:OgronCUzFHA.3256@TK2MSFTNGP09.phx.gbl...[color=green]
> >I have a shopping cart datagrid that is filled only the first time the[/color][/color]
page[color=blue][color=green]
> >is accessed, like so:
> >
> > If Page.IsPostBack = False Then
> > RetrieveShoppingCart()
> > End If
> >
> > The user can then change the quantity or check a cart item for deletion.
> > When they click the update button, I am attempting to iterate through[/color][/color]
the[color=blue][color=green]
> > grid, evaluating the Quantity textbox and Remove checkbox for each cart
> > item like so:
> > For Each gridRow As DataGridItem In CartGrid.Items
> >
> > Dim quantityTextBox As TextBox =
> > DirectCast(gridRow.FindControl("Quantity"), TextBox)
> > Dim removeCheckBox As CheckBox =
> > DirectCast(gridRow.FindControl("Remove"), CheckBox)
> >
> > If quantityTextBox.Text <> CartGrid.DataKeys(0).ToString() Or
> > removeCheckBox.Checked Then
> >
> > The anomoly is that on the first postback, although the two controls are
> > found, they have not retained their values. The quantityTextBox.Text
> > property is a blank string, the the removeCheckBox.Checked property is
> > always the default of False, no matter what it has been set to by the
> > user.
> >
> > But on each subsequent postback after that, they do retain their changed
> > values.
> >
> > The normal reason template controls would lose their value on a postback
> > would be if the grid was being accidentally rebound at each postback, or
> > viewstate is not properly set. But neither of these appears to be the[/color][/color]
case[color=blue][color=green]
> > here. I've literally modified the update button event handler so it does
> > nothing except display the value of the Quantity textbox on the page[/color][/color]
using[color=blue][color=green]
> > a label like so:
> >
> > Dim testTextBox As TextBox =
> > DirectCast(CartGrid.Items(0).FindControl("Quantity "), TextBox)
> > TestLabel.Text = "Quantity is : " & testTextBox.Text
> > Exit Sub
> >
> > On the first postback the label reads: "Quantity is: "
> > Each postback thereafter: "Quantity is: 2 (3,4, etc
> > depending on what its changed to)
> >
> > Any thoughts on what would cause a first postback to not retain the[/color][/color]
state[color=blue][color=green]
> > of the controls like this?
> >
> > Thanks.
> >
> > ---------------------------------------------------------------
> > Kel Good
> > MCT, MCAD, MCSD for Microsoft.NET
> >
> >[/color]
>
>[/color]
