Retrieve Selected Items of an ASP.NET ListBox using LINQ

I had recently written a post on Programmatically Select Multiple Items of an ASP.NET ListBox. A user ‘JukeBox’ mailed back asking me if it was possible to retrieve the selected items of a ListBox using LINQ. Here’s how to do so:

onclick="btnSel_Click" />

C#

protected void btnSel_Click(object sender, EventArgs e)
{
var selItems = from ListItem li in ListBox1.Items
where li.Selected == true
select li.Text;

Response.Write("Selected Item(s):
");
foreach (var item in selItems)
{
Response.Write(item.ToString() + "
");
}
}

VB.NET

Protected Sub btnSel_Click(ByVal sender As Object, ByVal e As EventArgs)
Dim selItems = _
From li As ListItem In ListBox1.Items _
Where li.Selected = True _
Select li.Text

Response.Write("Selected Item(s):
")
For Each item In selItems
Response.Write(item.ToString() & "
")
Next item
End Sub

On clicking the Button, the selected items are fetched as shown below:

image