Hi,
I am trying to duplicate the contents of a combobox to another.
I tried:

cmbBoxA.Items.AddRange(cmbBoxB.Items);

but it says it can't convert a combobox objectcollection[] to object[].

I tried putting (Object[]) in front of the addrange parameter but get a
similar error.
Any idea? I did something similar with a ListView and it worked fine...

James.

This works, although I don't know if it's optimal.

comboBox1.Items.Add("an item");
object[] a= new object[comboBox1.Items.Count];
comboBox1.Items.CopyTo(a,0);
comboBox2.Items.AddRange(a);


james wrote:
> Hi,
> I am trying to duplicate the contents of a combobox to another.
> I tried:
>
> cmbBoxA.Items.AddRange(cmbBoxB.Items);
>
> but it says it can't convert a combobox objectcollection[] to object[].
>
> I tried putting (Object[]) in front of the addrange parameter but get a
> similar error.
> Any idea? I did something similar with a ListView and it worked fine...
>
> James.

"DeveloperX" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> This works, although I don't know if it's optimal.
>
> comboBox1.Items.Add("an item");
> object[] a= new object[comboBox1.Items.Count];
> comboBox1.Items.CopyTo(a,0);
> comboBox2.Items.AddRange(a);
>
I'll give it a try - there won't be too many items, so optimal isn't too
much of a worry.

I also lied - copying listview items like that doesn't work! It compiles,
but at runtime, it says I can't have that item in more than one location
unless I clone it?

Yeah listviews use ListViewItem objects as opposed to just a bunch of
objects. ListViewItem has a clone method on it for that

james wrote:
> "DeveloperX" <(E-Mail Removed)> wrote in message
> news:(E-Mail Removed)...
> > This works, although I don't know if it's optimal.
> >
> > comboBox1.Items.Add("an item");
> > object[] a= new object[comboBox1.Items.Count];
> > comboBox1.Items.CopyTo(a,0);
> > comboBox2.Items.AddRange(a);
> >
> I'll give it a try - there won't be too many items, so optimal isn't too
> much of a worry.
>
> I also lied - copying listview items like that doesn't work! It compiles,
> but at runtime, it says I can't have that item in more than one location
> unless I clone it?