dropdowns:setting index

[SJ]

Hi,

i'm trying to use codebehind to setup my dropdowns.

myWebFile.aspx has the following code :

<asp:DropDownList id=test runat=server />
<asp:DropDownList id=test2 runat=server />

And i'm defining the ListItems like this in codebehind:

for(int i=0;i<3;i++)
{
test.Items.Add(new ListItem(i.ToString(), i.ToString()));
test2.Items.Add(new ListItem(i.ToString(), i.ToString()));
}

And finally setting the selected index like this :

test.SelectedIndex = 1;
test2.SelectedIndex = 2;

Except the code above doesnt work as expected and sets BOTH test and test2
with a SelectedIndex of 2.
Any ideas why this would happen?

thanks
-SJ

[Curt_C [MVP]]

IIRC it's because when you set the SelectedIndex it goes back to the source
of the list, which is the ListItem collection and since they both use the
same one it sets the source's index....
That's my guess.....you may want to declare the ListItem object twice, with
2 names, and add seperatly?

--
Curt Christianson
site: http://www.darkfalz.com
blog: http://blog.darkfalz.com

"SJ" wrote:

Hi,

i'm trying to use codebehind to setup my dropdowns.

myWebFile.aspx has the following code :

<asp:DropDownList id=test runat=server />
<asp:DropDownList id=test2 runat=server />

And i'm defining the ListItems like this in codebehind:

for(int i=0;i<3;i++)
{
test.Items.Add(new ListItem(i.ToString(), i.ToString()));
test2.Items.Add(new ListItem(i.ToString(), i.ToString()));
}

And finally setting the selected index like this :

test.SelectedIndex = 1;
test2.SelectedIndex = 2;

Except the code above doesnt work as expected and sets BOTH test and test2
with a SelectedIndex of 2.
Any ideas why this would happen?

thanks
-SJ

[SJ]

That fixed it.
thanks!

-SJ.

"Curt_C [MVP]" <software_at_darkfalz.com> wrote in message
news:AA**********************************@microsof t.com...

IIRC it's because when you set the SelectedIndex it goes back to the source of the list, which is the ListItem collection and since they both use the
same one it sets the source's index....
That's my guess.....you may want to declare the ListItem object twice, with 2 names, and add seperatly?

--
Curt Christianson
site: http://www.darkfalz.com
blog: http://blog.darkfalz.com

"SJ" wrote:

Hi,

i'm trying to use codebehind to setup my dropdowns.

myWebFile.aspx has the following code :

<asp:DropDownList id=test runat=server />
<asp:DropDownList id=test2 runat=server />

And i'm defining the ListItems like this in codebehind:

for(int i=0;i<3;i++)
{
test.Items.Add(new ListItem(i.ToString(), i.ToString()));
test2.Items.Add(new ListItem(i.ToString(), i.ToString()));
}

And finally setting the selected index like this :

test.SelectedIndex = 1;
test2.SelectedIndex = 2;

Except the code above doesnt work as expected and sets BOTH test and test2 with a SelectedIndex of 2.
Any ideas why this would happen?

thanks
-SJ