private void BindTarget(bool bind)
{
if (bind)
{
if (IsBinding)
{
if (propInfo != null && control != null)
{
EventHandler handler = new EventHandler(this.Target_PropertyChanged);
propInfo.AddValueChanged(control, handler);
}
if (validateInfo != null)
{
CancelEventHandler handler = new CancelEventHandler(this.Target_Validate);
validateInfo.AddEventHandler(control, handler);
}
}
}
else
{
if (propInfo != null && control != null)
{
EventHandler handler = new EventHandler(this.Target_PropertyChanged);
propInfo.RemoveValueChanged(control, handler);
}
if (validateInfo != null)
{
CancelEventHandler handler = new CancelEventHandler(this.Target_Validate);
validateInfo.RemoveEventHandler(control, handler);
}
}
}
internal void SetBindingManagerBase(BindingManagerBase lManager)
{
if (bindingManager == lManager)
{
return;
}
// remove notification from the backEnd
if (bindingManager != null && fieldInfo != null && bindingManager.IsBinding && !(bindingManager is CurrencyManager))
{
fieldInfo.RemoveValueChanged(bindingManager.Current, new EventHandler(PropValueChanged));
fieldInfo = null;
}
this.bindingManager = lManager;
CheckBinding();
}
internal override void SetDataSource(Object dataSource)
{
if (this.dataSource != null && !String.IsNullOrEmpty(this.propName))
{
propInfo.RemoveValueChanged(this.dataSource, new EventHandler(PropertyChanged));
propInfo = null;
}
this.dataSource = dataSource;
if (this.dataSource != null && !String.IsNullOrEmpty(this.propName))
{
propInfo = TypeDescriptor.GetProperties(dataSource).Find(propName, true);
if (propInfo == null)
{
throw new ArgumentException(string.Format(SR.PropertyManagerPropDoesNotExist, propName, dataSource.ToString()));
}
propInfo.AddValueChanged(dataSource, new EventHandler(PropertyChanged));
}
}
private protected override void SetDataSource(object dataSource)
{
if (_dataSource != null && !string.IsNullOrEmpty(_propName))
{
_propInfo.RemoveValueChanged(_dataSource, new EventHandler(PropertyChanged));
_propInfo = null;
}
_dataSource = dataSource;
if (_dataSource != null && !string.IsNullOrEmpty(_propName))
{
_propInfo = TypeDescriptor.GetProperties(dataSource).Find(_propName, true);
if (_propInfo is null)
{
throw new ArgumentException(string.Format(SR.PropertyManagerPropDoesNotExist, _propName, dataSource.ToString()));
}
_propInfo.AddValueChanged(dataSource, new EventHandler(PropertyChanged));
}
}
