RE: Databinding and ArrayLists

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DateTimeString is a property or a field?

--
Alex Yakhnin, .NET CF MVP
www.intelliprog.com | www.opennetcf.org


"Trollpower" wrote:

> Dear NG,
>
> ive got the following problem with databinding, and i hope someone can
> help me out there.
>
> Ive a simple form wit a few controls. With the DateTimePicker the user
> can choose a date and also a time. If the user clicks on a Button the
> choosen Date and Time are put into a ArrayList. I put the ArrayList
> into a ListBox to show the choosen date and time.
>
> Now the ListBox sould show the values, but nothing happens. The
> following code shows how i use the Databinding:
>
> //Constructorcode
>
> this.dateTimes = new ArrayList();
> listBox1.DataSource = this.dateTimes;
> listBox1.DisplayMember = "DateTimeString";//DateTimeString is a
> formated string of the DateTimeObject-class with additional functions
>
> //Eventmethod of the button
> private void button1_Click(object sender, System.EventArgs e)
> {
> DateTime dateTime = new DateTime(this.m_picker.Value.Year,
> this.m_picker.Value.Month,
> this.m_picker.Value.Day,
> Convert.ToInt32(this.comboBox1.SelectedItem),
> Convert.ToInt32(this.comboBox2.SelectedItem),
> 0);
> DateTimeWrapper dtw = new DateTimeWrapper(dateTime);
> if(!this.dateTimes.Contains(dtw))
> {
> dateTimes.Add(dtw);
> }
> else{
> MessageBox.Show("Time allready set!");
> }
> }
>
> As far as i understand DataBinding, i only have to define a source for
> the control, and as soon as the data changes within the source, the
> control refreshes its shown values.
>
> Any help on this problem is appreciated.
>
> Thanks in advance
>
> Jens
>
>
.

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