Hi all,
Is it possible to populate a listbox from a hashtable (complexbind) where
the ValueMember of the listbox maps to the "key" member of the hashtable AND
the DisplayMember of the listbox maps to the "value" member of the
hashtable?
I found that it is impossible to use a hashtable as a listbox datasource
directly (from trial and error) and tried DirectCast-ing to an arraylist
without any success. Before I spend anymore time in vain complex binding, I
thought I'd ask to see if anyone has figured a method of doing so.
D
5  7837 
Hi Dave!
didn't test it but it seems ok http://groups.google.com/groups?thre...40tkmsftngxa04
--
Best Regards
Yanick
"Dave" <dave(delete_th is)@miraclecatD ELETETHISTOO.co m> a écrit dans le
message de news:OR******** ******@TK2MSFTN GP15.phx.gbl... Hi all,
Is it possible to populate a listbox from a hashtable (complexbind) where
the ValueMember of the listbox maps to the "key" member of the hashtable
AND the DisplayMember of the listbox maps to the "value" member of the
hashtable?
I found that it is impossible to use a hashtable as a listbox datasource
directly (from trial and error) and tried DirectCast-ing to an arraylist
without any success. Before I spend anymore time in vain complex binding,
I thought I'd ask to see if anyone has figured a method of doing so.
D
Bummer, this only works in ASP.NET.
"Zoury" <yanick_lefebvr e at hotmail dot com> wrote in message
news:Om******** ******@TK2MSFTN GP14.phx.gbl... Hi Dave!
didn't test it but it seems ok
http://groups.google.com/groups?thre...40tkmsftngxa04
--
Best Regards
Yanick
"Dave" <dave(delete_th is)@miraclecatD ELETETHISTOO.co m> a écrit dans le
message de news:OR******** ******@TK2MSFTN GP15.phx.gbl... Hi all,
Is it possible to populate a listbox from a hashtable (complexbind)
where the ValueMember of the listbox maps to the "key" member of the hashtable AND the DisplayMember of the listbox maps to the "value" member of the
hashtable?
I found that it is impossible to use a hashtable as a listbox datasource
directly (from trial and error) and tried DirectCast-ing to an arraylist
without any success. Before I spend anymore time in vain complex
binding, I thought I'd ask to see if anyone has figured a method of doing so.
D
oh sorry! i didn't pay much attention to the properties name from the
sample.
have you try this :
'***
Dim ht As Hashtable = New Hashtable(3)
ht.Add("item 1", 1)
ht.Add("item 2", 2)
ht.Add("item 3", 3)
ListBox1.Displa yMember = "key"
ListBox1.ValueM ember = "value"
Dim entry As DictionaryEntry
For Each entry In ht
ListBox1.Items. Add(entry)
Next
'***
note that for some reason you must affect DisplayMember and ValueMember
properties before adding the items or the displayed item might not be
correct... (plus i'm not quite sure why it's not the other way around)
--
Best Regards
Yanick
"Dave" <dave(delete_th is)@miraclecatD ELETETHISTOO.co m> a écrit dans le
message de news:eO******** ******@tk2msftn gp13.phx.gbl... Bummer, this only works in ASP.NET.
"Zoury" <yanick_lefebvr e at hotmail dot com> wrote in message
news:Om******** ******@TK2MSFTN GP14.phx.gbl... Hi Dave!
didn't test it but it seems ok http://groups.google.com/groups?thre...40tkmsftngxa04
--
Best Regards
Yanick
"Dave" <dave(delete_th is)@miraclecatD ELETETHISTOO.co m> a écrit dans le
message de news:OR******** ******@TK2MSFTN GP15.phx.gbl... Hi all,
Is it possible to populate a listbox from a hashtable (complexbind) where the ValueMember of the listbox maps to the "key" member of the
hashtable AND the DisplayMember of the listbox maps to the "value" member of the
hashtable?
I found that it is impossible to use a hashtable as a listbox
datasource directly (from trial and error) and tried DirectCast-ing to an
arraylist without any success. Before I spend anymore time in vain complex
binding, I thought I'd ask to see if anyone has figured a method of doing so.
D
Thanks Zoury!
I learned something new: looping with the "DictionaryEntr y" - This is
awesome and works faster than the datatable binding!
Forgive me for getting so excited over this, I am quite new to VB.Net!
"Zoury" <yanick_lefebvr e at hotmail dot com> wrote in message
news:ej******** ******@TK2MSFTN GP15.phx.gbl... oh sorry! i didn't pay much attention to the properties name from the
sample.
have you try this :
'***
Dim ht As Hashtable = New Hashtable(3)
ht.Add("item 1", 1)
ht.Add("item 2", 2)
ht.Add("item 3", 3)
ListBox1.Displa yMember = "key"
ListBox1.ValueM ember = "value"
Dim entry As DictionaryEntry
For Each entry In ht
ListBox1.Items. Add(entry)
Next
'***
note that for some reason you must affect DisplayMember and ValueMember
properties before adding the items or the displayed item might not be
correct... (plus i'm not quite sure why it's not the other way around)
--
Best Regards
Yanick
"Dave" <dave(delete_th is)@miraclecatD ELETETHISTOO.co m> a écrit dans le
message de news:eO******** ******@tk2msftn gp13.phx.gbl... Bummer, this only works in ASP.NET.
"Zoury" <yanick_lefebvr e at hotmail dot com> wrote in message
news:Om******** ******@TK2MSFTN GP14.phx.gbl... Hi Dave!
didn't test it but it seems ok http://groups.google.com/groups?thre...40tkmsftngxa04
--
Best Regards
Yanick
"Dave" <dave(delete_th is)@miraclecatD ELETETHISTOO.co m> a écrit dans le
message de news:OR******** ******@TK2MSFTN GP15.phx.gbl...
> Hi all,
> Is it possible to populate a listbox from a hashtable (complexbind)
where > the ValueMember of the listbox maps to the "key" member of the hashtable AND
> the DisplayMember of the listbox maps to the "value" member of the
> hashtable?
> I found that it is impossible to use a hashtable as a listbox datasource > directly (from trial and error) and tried DirectCast-ing to an arraylist > without any success. Before I spend anymore time in vain complex
binding, I
> thought I'd ask to see if anyone has figured a method of doing so.
>
> D
>
>
Thanks Zoury!
I learned something new: looping with the "DictionaryEntr y" - This is
awesome and works faster than the datatable binding!
Forgive me for getting so excited over this, I am quite new to VB.Net!
"Zoury" <yanick_lefebvr e at hotmail dot com> wrote in message
news:ej******** ******@TK2MSFTN GP15.phx.gbl... oh sorry! i didn't pay much attention to the properties name from the
sample.
have you try this :
'***
Dim ht As Hashtable = New Hashtable(3)
ht.Add("item 1", 1)
ht.Add("item 2", 2)
ht.Add("item 3", 3)
ListBox1.Displa yMember = "key"
ListBox1.ValueM ember = "value"
Dim entry As DictionaryEntry
For Each entry In ht
ListBox1.Items. Add(entry)
Next
'***
note that for some reason you must affect DisplayMember and ValueMember
properties before adding the items or the displayed item might not be
correct... (plus i'm not quite sure why it's not the other way around)
--
Best Regards
Yanick
"Dave" <dave(delete_th is)@miraclecatD ELETETHISTOO.co m> a écrit dans le
message de news:eO******** ******@tk2msftn gp13.phx.gbl... Bummer, this only works in ASP.NET.
"Zoury" <yanick_lefebvr e at hotmail dot com> wrote in message
news:Om******** ******@TK2MSFTN GP14.phx.gbl... Hi Dave!
didn't test it but it seems ok http://groups.google.com/groups?thre...40tkmsftngxa04
--
Best Regards
Yanick
"Dave" <dave(delete_th is)@miraclecatD ELETETHISTOO.co m> a écrit dans le
message de news:OR******** ******@TK2MSFTN GP15.phx.gbl...
> Hi all,
> Is it possible to populate a listbox from a hashtable (complexbind)
where > the ValueMember of the listbox maps to the "key" member of the hashtable AND
> the DisplayMember of the listbox maps to the "value" member of the
> hashtable?
> I found that it is impossible to use a hashtable as a listbox datasource > directly (from trial and error) and tried DirectCast-ing to an arraylist > without any success. Before I spend anymore time in vain complex
binding, I
> thought I'd ask to see if anyone has figured a method of doing so.
>
> D
>
>
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