internal void PushData()
{
if (IsBinding)
{
Object value = bindToObject.GetValue();
value = FormatObject(value);
SetPropValue(value);
modified = false;
}
else
{
SetPropValue(null);
}
}
internal bool PushData(bool force)
{
object dataSourceValue = null;
Exception lastException = null;
// Don't push if update mode is 'Never' (unless caller is FORCING us to push)
if (!force && ControlUpdateMode == ControlUpdateMode.Never)
{
return(false);
}
// Re-entrancy check between push and pull (new for Whidbey - requires FormattingEnabled)
if (inPushOrPull && formattingEnabled)
{
return(false);
}
inPushOrPull = true;
try {
if (IsBinding)
{
dataSourceValue = bindToObject.GetValue();
object controlValue = FormatObject(dataSourceValue);
SetPropValue(controlValue);
modified = false;
}
else
{
SetPropValue(null);
}
}
catch (Exception ex) {
lastException = ex;
// This try/catch is new for Whidbey. To preserve Everett behavior, re-throw the
// exception unless this binding has formatting enabled (new Whidbey feature).
if (!FormattingEnabled)
{
throw;
}
}
finally {
inPushOrPull = false;
}
if (FormattingEnabled)
{
// Whidbey...
// Raise the BindingComplete event, giving listeners a chance to process any errors that occured, and decide
// whether the operation should be cancelled. But don't emit the event if we didn't actually update the control.
BindingCompleteEventArgs args = CreateBindingCompleteEventArgs(BindingCompleteContext.ControlUpdate, lastException);
OnBindingComplete(args);
return(args.Cancel);
}
else
{
// Everett...
// Do not emit BindingComplete events, or allow the operation to be cancelled.
return(false);
}
}