Visual Basic

Public Shared Function GetFullPathToFile(ByVal filename As String) As String
    Return Path.Combine(Application.StartupPath, filename)
End Function

Public Shared Function GetFullPathToFileInDataFolder(ByVal filename As String) As String
    ' Build the full path to the Data folder in our the folder our .EXE is in.
    ' You could also get this path from a config file, or some other data store.
    Dim dataFolderPath As String = Path.Combine(Application.StartupPath, "Data")

    ' Then build the path to the requested file
    Return Path.Combine(dataFolderPath, filename)
End Function

dexter9703 wrote:

I add items to a listbox using a button and remove using another. How can I disable the remove button if there are no contents in the listbox

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        If Not Page.IsPostBack Then
            PopulateRootLevel()
           
        End If
        TreeView1.CollapseAll()
        ' get the saved state of all nodes. 
        Dim treeViewState As New TreeViewState()
        treeViewState.SaveTreeView(TreeView1, Me.GetType.ToString())
      
    End Sub