private ScheduledUpdate(DataGridComboBox combo, string value)
{
this.combo = combo;
this.value = value;
timer = new Timer {
Interval = 1
};
timer.Tick += TickHandler;
timer.Start();
}
/// <summary>
/// Allows scheduling updates for the specified outline
/// </summary>
public static void ScheduleUpdate(DataGridComboBox combo, string value)
{
if (combo == null)
{
Debug.Fail("Invalid combo");
return;
}
if (combo.scheduledUpdate != null)
{
Trace.TraceInformation("There is already scheduled update, ignoring");
return; // just swallow it
}
combo.scheduledUpdate = new ScheduledUpdate(combo, value);
}
// Constructor - create combobox, register selection change event handler,
// register lose focus event handler
public DataGridComboBoxColumn(IServiceProvider serviceProvider)
{
if (serviceProvider == null)
{
throw new ArgumentNullException("serviceProvider");
}
_designerHost = serviceProvider.GetService(typeof(IDesignerHost)) as IDesignerHost;
Debug.Assert(_designerHost != null, "Expected to be able to get a hold of a designer host.");
this.cm = null;
this.iCurrentRow = -1;
// Create ComboBox and force DropDownList style
this.comboBox = new DataGridComboBox(this, serviceProvider);
this.comboBox.DropDownStyle = ComboBoxStyle.DropDownList; // default style
}