C# 4 and .NET 4

1180 ❘ ChaPTer 40 cOre Asp.net
Here you have added a new table row containing a table with a ListView control in one column and a
FormView control in the other.
The ListView uses to output a bulleted list and and
to display event details as list items. In , a container
element for items is specified with a PlaceHolder control that has the ID=“itemPlaceholder”
attribute. To facilitate selection, you raise a Select command from the event name link rendered in
, which automatically changes the selection. You also use the OnSelectedIndexChanged
event, triggered when the Select command changes the selection, to ensure that the list display updates
itself to display the selected item in a different style. The event handler for this is shown in the
following code:
protected void EventList_SelectedIndexChanged(object sender, EventArgs e)
{
EventList.DataBind();
}
You also need to ensure new events are added to the list:
if (queryResult == 1)
{
resultLabel.Text = "Event Added.";
EventData = null;
calendar.SelectedDate =
GetFreeDate(calendar.SelectedDate.AddDays(1));
GridView1.DataBind();
EventList.DataBind();
}
Now selectable event details are available in the table, as shown in Figure 40-14.
There is much more that you can do with templates and data-bound controls in general, enough in fact to
fill a whole book. However, this should be enough to get you started with your experimentation.
figure 40-14
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