combobox/listbox

[spoiledkid]

How do you use the DisplayMember and ValueMember properties of combobox and listbox when you are not binding it with a data source. Can't I manually Additems using Items.Add and still specify these two things ??

[mendhak]

Place your elements into an ArrayList, and then set the listbox's datasource as that arraylist.

[mendhak]

Here's my most used example on the forums


'First, declare a class to hold your stuff

Public Class ListItemNumeric
    Private mstrValue As String
    Private mintID As Integer
    Public Sub New()
 
    End Sub
 
    Public Sub New(ByVal strValue As String, ByVal intID As Integer)
        mstrValue = strValue
        mintID = intID
 
    End Sub
 
    Property Value() As String
        Get
            Return mstrValue
        End Get
        Set(ByVal Value As String)
            mstrValue = Value
 
        End Set
    End Property
 
    Property ID() As Integer
        Get
            Return mintID
        End Get
        Set(ByVal Value As Integer)
            mintID = Value
        End Set
    End Property
 
    Public Overrides Function ToString() As String
        Return mstrValue
    End Function
 
End Class

Now, you can populate your listbox:

Dim lItem As ListItemNumeric
 
lItem.Value = "HORSE"
lItem.ID = 9
 
lstListBox.Items.Add(lItem)

Add them however you want.

Now, when you want to work with them, do like so:

varVariableName = CType(lstListBox.SelectedItem, ListItemNumeric).ID
'or Value, whatever you want

HTH!

[spoiledkid]

That is the problem, I have an XML in this format ...


m_entityGuids = "<Entities>" & Environment.NewLine
m_entityGuids = m_entityGuids & "<Entity Name=""a"" Guid=""b"" />" & Environment.NewLine
m_entityGuids = m_entityGuids & "<Entity Name=""c"" Guid=""d"" />" & Environment.NewLine
m_entityGuids = m_entityGuids & "</Entities>"


Now, I am suppose to look through the XMLDocument and load Name as a visible thing and Guid as the value of the name. How Do I do that with datasource property ... ??

[spoiledkid]

no other way

[mendhak]

Isn't it possible to parse through that XML file and get these values, then populate the ListItemNumeric like in the example I showed you?

[spoiledkid]

That is certainly possible, but then I'd have to ask myself a question, is it worth ?

[mendhak]

And deep inside you a small voice will say "I need a drink"

[spoiledkid]

Originally posted by mendhak
And deep inside you a small voice will say "I need a drink"

You got that one right