databinding 2 datagridview -- dotnet windows forms databinding

dotnet windows forms databinding : databinding 2 datagridview

Bruno Alexandre
11/15/2005 12:00:00 AM

Hi guys,

I have 2 questions regarding this issue:

1st. Why this code gives me the lenght of the string instead the string
itself?

Dim a As New ArrayList
a.Add(DirectCast(LProb_DataPassivos.Value.ToShortDateString, String))
a.Add(DirectCast(LProb_DescricaoPassivos.Text, String))
dgListaProblemasPassivos.DataSource = a

2nd. Why VS gives me an error when doing this, saying that I have to use
the NEW key:

user.arrayList_pass.Add(DirectCast(LProb_DataPassivos.Value.ToShortDateString,
String))
user.arrayList_pass.Add(DirectCast(LProb_DescricaoPassivos.Text, String))
dgPass.DataSource = user.arrayList_pass

I can't use the NEW because user.arrayList_pass is a ArrayList property
from my Class and it ould reach this point with data on the ArrayList, so I
can't have a new one, I will loose every previous data.

--

Bruno Alexandre
(Sintra, PORTUGAL)

Bart Mermuys
11/15/2005 12:00:00 AM

Hi,

[quoted text, click to view]

Because a DataGridView can have multiple columns and when you bind an object
then the names of the properties are used for the column headers and the
values for the cells in a row. A string is an object with one property
Length.

If you only have one column, you could consider using a simple ListBox,
otherwise you will need to either create your own class with a single
property that returns a string or use a DataTable with a single Column.

If you're using .NET2.0 it's also better to use a generic BindingList<Of T>
instead of ArrayList.

Can't help you with the second problem.

HTH,
Greetings

[quoted text, click to view]

Bruno Alexandre
11/15/2005 12:00:00 AM

I change it to DataTable instead ArrayList

:-)

--

Bruno Alexandre
(Sintra, PORTUGAL)

"Bruno Alexandre" <bruno.news@filtrarte.com> escreveu na mensagem
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[quoted text, click to view]

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