private void DisconnectPropertyBindingSetting(PropertyBindingSettings setting)
{
var prop = typeof(T).GetProperty(setting.BindingObject, BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.Public);
if (prop != null)
{
if (!string.IsNullOrEmpty(setting.EventName))
{
var instance = prop.GetValue(controller);
var eventInstance = instance.GetType().GetEvent(setting.EventName);
if (eventInstance != null)
{
var tDelegate = eventInstance.EventHandlerType;
var miHandler = this.GetType().GetMethod("InternalControlEventHandler", BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.Public);
if (miHandler != null)
{
var addHandler = eventInstance.GetRemoveMethod();
var d = Delegate.CreateDelegate(tDelegate, this, miHandler);
System.Object[] addHandlerArgs = { d };
addHandler.Invoke(instance, addHandlerArgs);
}
}
}
}
}
private void InternalControlEventHandler(object sender, EventArgs args)
{
nint tag = 0;
if (sender is UIControl)
{
tag = ((UIControl)sender).Tag;
}
else
{
if (sender is IBaseSource)
{
tag = ((IBaseSource)sender).Tag;
}
}
PropertyBindingSettings ctrl = null;
if (args != null && args is RowSelectedEventArgs)
{
ctrl = pbs.FirstOrDefault(x => x.Tag == tag && x.EventName == "RowSelectedEvent");
}
else
{
ctrl = pbs.FirstOrDefault(x => x.Tag == tag);
}
if (ctrl != null)
{
var prop = sender.GetType().GetProperty(ctrl.BindingProperty, BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.Public);
var propValue = prop.GetValue(sender, null);
var vmProp = viewModel.GetType().GetProperty(ctrl.ViewModelProperty, BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.Public);
if (sender is IBaseSource)
{
var item = ((IBaseSource)sender).SelectedItem;
vmProp.SetValue(viewModel, item);
}
else
{
var cvPropValue = ValueConverter.ChangeType(vmProp.PropertyType.Name, propValue.ToString());
if (cvPropValue == null)
{
return;
}
vmProp.SetValue(viewModel, cvPropValue);
}
}
}
private void SetInitialValue(PropertyBindingSettings setting)
{
var vmProp = viewModel.GetType().GetProperty(setting.ViewModelProperty, BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.Public);
var cvPropValue = vmProp.GetValue(viewModel, null);
var ctrlProp = typeof(T).GetProperty(setting.BindingObject, BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.Public);
var ctrlInstance = ctrlProp.GetValue(bindingObj);
var prop = ctrlInstance.GetType().GetProperty(setting.BindingProperty, BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.Public);
prop.SetValue(ctrlInstance, cvPropValue);
if (ctrlProp.PropertyType.Name == "EditText")
{
int textLength = ((EditText)ctrlInstance).Text.Length;
((EditText)ctrlInstance).SetSelection(textLength, textLength);
}
}
private void SetControlFromViewModel(PropertyBindingSettings setting)
{
var ctrlProp = typeof(T).GetProperty(setting.BindingObject, BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.Public);
var ctrlInstance = ctrlProp.GetValue(controller);
var ctrlInstaceProp = ctrlInstance.GetType().GetProperty(setting.BindingProperty, BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.Public);
var currentValue = ctrlInstaceProp.GetValue(ctrlInstance);
var vmProp = viewModel.GetType().GetProperty(setting.ViewModelProperty, BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.Public);
var vmValue = vmProp.GetValue(viewModel, null);
if (!currentValue.Equals(vmValue))
{
if (ctrlInstance is IBaseSource)
{
if (setting.EventName != "RowSelectedEvent")
{
((IBaseSource)ctrlInstance).UpdateCollection((ICollection)vmValue);
}
}
else if (currentValue.GetType().Name != "String" && (currentValue.GetType().Name == vmValue.GetType().Name))
{
ctrlInstaceProp.SetValue(ctrlInstance, vmValue);
}
else
{
if (!string.IsNullOrEmpty(setting.Format))
{
var formattedValue = string.Format(setting.Format, vmValue);
ctrlInstaceProp.SetValue(ctrlInstance, formattedValue);
}
else
{
ctrlInstaceProp.SetValue(ctrlInstance, vmValue.ToString());
}
}
}
}
