To allow users to select multiple values from a listbox, you need to set two properties, such as rows and SelectionMode. The value for rows can be any integer and for Selectionmode, it will be Multiple. To retrieve the all the values selected by the user, we need to make use of the properties such as Items.Count. And the property, selected will tell us whether the item have been selected or not. See the following example.
Listbox Web Server Control - by Das
Sub mySub(sender As Object, e As EventArgs)
If lstStates.SelectedIndex > - 1
lblMsg.Text=""
Dim ctr as Integer
For ctr=0 to lstStates.Items.Count()-1
If lstStates.items(ctr).selected
lblMsg.Text += " You selected " & lstStates.items(ctr).Text & ""
end if
Next
End If
End Sub
Re: How to select multiple items in a Listbox in ASP.NET?
To allow users to select multiple values from a listbox, you need to set two properties, such as rows and SelectionMode. The value for rows can be any integer and for Selectionmode, it will be Multiple. To retrieve the all the values selected by the user, we need to make use of the properties such as Items.Count. And the property, selected will tell us whether the item have been selected or not. See the following example.
Listbox Web Server Control - by Das
Sub mySub(sender As Object, e As EventArgs)
If lstStates.SelectedIndex > - 1
lblMsg.Text=""
Dim ctr as Integer
For ctr=0 to lstStates.Items.Count()-1
If lstStates.items(ctr).selected
lblMsg.Text += " You selected " & lstStates.items(ctr).Text & ""
end if
Next
End If
End Sub
ASP.NET Listbox Server Control
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