Adding a select column...

[Paul Mason]

Hi folks,

I am aiming to create a "select" column that is unbound on datagrid whose
other columns are all data bound. The idea is to let the user select items
to be printed etc.

The problem I have arises when I want to find out which rows are selected.
The following code is a tester that puts values into a string to be
displayed, but it's representative.

Dim chk As CheckBox

Dim itm As DataGridItem

Dim str As String

For Each itm In Me.dgVialList.Items

chk = CType(itm.Cells(0).Controls(0), CheckBox)

If chk.Checked Then

str += itm.Cells(1).Text & ", "

End If

Next

The problem occurs at chk = CType(itm.Cells(0).Controls(0), CheckBox) where
it says that it cannot cast the item as a checkbox. This collection is base
0?? I have only one template control (ItemTemplate).

Any ideas?

Cheers...P

[Paul Mason]

Many apologies folks...I needed to refer to itm.Cells(0).Controls(1). I'm
not sure why this should be so, but I've got it working now.

Cheers...P


"Paul Mason" <p.mason.2@bham.ac.uk> wrote in message
news:%23wz$ocjrFHA.2996@tk2msftngp13.phx.gbl...

>
> Hi folks,
>
> I am aiming to create a "select" column that is unbound on datagrid whose
> other columns are all data bound. The idea is to let the user select
> items to be printed etc.
>
> The problem I have arises when I want to find out which rows are selected.
> The following code is a tester that puts values into a string to be
> displayed, but it's representative.
>
> Dim chk As CheckBox
>
> Dim itm As DataGridItem
>
> Dim str As String
>
> For Each itm In Me.dgVialList.Items
>
> chk = CType(itm.Cells(0).Controls(0), CheckBox)
>
> If chk.Checked Then
>
> str += itm.Cells(1).Text & ", "
>
> End If
>
> Next
>
> The problem occurs at chk = CType(itm.Cells(0).Controls(0), CheckBox)
> where it says that it cannot cast the item as a checkbox. This collection
> is base 0?? I have only one template control (ItemTemplate).
>
> Any ideas?
>
> Cheers...P
>
>
>
>
>
>
>

[Elton Wang]

Hi Paul,

Actually, the better way is:



chk = CType(itm.FindControl(checkbox_ID), CheckBox)



So you don't need to worry about it's in Controls(0) or Controls(1).



HTH





"Paul Mason" <p.mason.2@bham.ac.uk> wrote in message
news:efgoYpjrFHA.1256@TK2MSFTNGP09.phx.gbl...

>
> Many apologies folks...I needed to refer to itm.Cells(0).Controls(1). I'm
> not sure why this should be so, but I've got it working now.
>
> Cheers...P
>
>
> "Paul Mason" <p.mason.2@bham.ac.uk> wrote in message
> news:%23wz$ocjrFHA.2996@tk2msftngp13.phx.gbl...

> >
> > Hi folks,
> >
> > I am aiming to create a "select" column that is unbound on datagrid

whose

> > other columns are all data bound. The idea is to let the user select
> > items to be printed etc.
> >
> > The problem I have arises when I want to find out which rows are

selected.

> > The following code is a tester that puts values into a string to be
> > displayed, but it's representative.
> >
> > Dim chk As CheckBox
> >
> > Dim itm As DataGridItem
> >
> > Dim str As String
> >
> > For Each itm In Me.dgVialList.Items
> >
> > chk = CType(itm.Cells(0).Controls(0), CheckBox)
> >
> > If chk.Checked Then
> >
> > str += itm.Cells(1).Text & ", "
> >
> > End If
> >
> > Next
> >
> > The problem occurs at chk = CType(itm.Cells(0).Controls(0), CheckBox)
> > where it says that it cannot cast the item as a checkbox. This

collection

> > is base 0?? I have only one template control (ItemTemplate).
> >
> > Any ideas?
> >
> > Cheers...P
> >
> >
> >
> >
> >
> >
> >

>
>