dynamic bound controls

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Hergass - 30 Jan 2007 08:08 GMT

Hi
I try to create a few dynamic bound combobox controls, but as soon as i
select a value from one of the controls, all the other controls are change to
the value witch i've selected.

how can I make each combo ack by itself?

Thanks in advance
Y. Hergass

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Ciaran O''Donnell - 30 Jan 2007 09:11 GMT

You need a binding source for each one. Each binding source only has one
current which the controls use.

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Ciaran O''Donnell
http://wannabedeveloper.spaces.live.com

> Hi
> I try to create a few dynamic bound combobox controls, but as soon as i
[quoted text clipped - 5 lines]
> Thanks in advance
> Y. Hergass

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Larry Lard - 30 Jan 2007 10:21 GMT

> Hi
> I try to create a few dynamic bound combobox controls, but as soon as i
> select a value from one of the controls, all the other controls are change to
> the value witch i've selected.
>
> how can I make each combo ack by itself?

Instead of (say)

comboBox1.Datasource = myDatasource;
comboBox2.Datasource = myDatasource;
comboBox3.Datasource = myDatasource;

do

BindingSource bs1 = new BindingSource();
bs1.Datasource = myDatasource;
comboBox1.Datasource = bs1;

BindingSource bs2 = new BindingSource();
bs2.Datasource = myDatasource;
comboBox2.Datasource = bs2;

BindingSource bs3 = new BindingSource();
bs3.Datasource = myDatasource;
comboBox3.Datasource = bs3;

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Larry Lard
larrylard@googlemail.com
The address is real, but unread - please reply to the group
For VB and C# questions - tell us which version

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Hergass - 30 Jan 2007 15:20 GMT

Tank you for your help

I've Only added the .Copy to the DataTable:

for i = 1 to 10
dim DT as DataTable
DT=DS.Tables(TableName)

combo(i) = New ComboBox()
combo(i).Size = New Size(comboWidth, 21)
combo(i).Location = New Point(120, lineHeight * i + iTop)

combo(i).DataSource = DT.Copy

combo(i).ValueMember = "str"
combo(i).DisplayMember = "val"
combo(i).Name = tblName & "combo" & i.ToString
combo(i).Tag = i.ToString
grpBox.Controls.Add(combo(i))
next i

Thanks again
Hergass

> > Hi
> > I try to create a few dynamic bound combobox controls, but as soon as i
[quoted text clipped - 22 lines]
> bs3.Datasource = myDatasource;
> comboBox3.Datasource = bs3;

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Tim Van Wassenhove - 30 Jan 2007 16:14 GMT

Hergass schreef:

> I try to create a few dynamic bound combobox controls, but as soon as i
> select a value from one of the controls, all the other controls are change to
> the value witch i've selected.

You need to lookup what a CurrencyManager is... And make sure all the
combobox bindings talk to a different one... (More info can be found at
eg: http://www.codeproject.com/vb/net/databindingconcepts.asp)

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Tim Van Wassenhove <url:http://www.timvw.be/>

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dynamic bound controls

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