public virtual void OnDataItemValueChanged(object sender, DataItemValue e)
{
if (!Loaded)
{
return;
}
if (sender == this)
{
return;
}
if (m_firstPublish)
{
return;
}
CheckForSetProperty(e);
}
void component_DataItemValueSet(object sender, DataItemValue e)
{
DataItemValueSet.Fire(sender, e);
}
public bool CheckForSetProperty(DataItemValue e)
{
// Call Methods
if (m_propertyDictionary == null)
{
return(false);
}
if (m_propertyDictionary.Count == 0)
{
return(false);
}
if (!m_propertyDictionary.ContainsKey(e.Item.ID))
{
return(false);
}
var property = m_propertyDictionary[e.Item.ID];
if (property == null)
{
return(false);
}
if (!property.PropertyInfo.CanWrite)
{
return(false);
}
object newProperty = null;
try
{
if (e.Value == null)
{
return(false);
}
// get the current value
object value = property.PropertyInfo.GetValue(property.Instance, null);
// return if there's been no change
if (value != null && value.ToString() == e.Value as string)
{
return(false);
}
if (property.PropertyInfo.PropertyType == typeof(double))
{
// can't parse an empty string to a double
// if(e.Value.IsNullOrEmpty()) return false;
newProperty = e.Value;
}
else if (property.PropertyInfo.PropertyType == typeof(int))
{
// can't parse an empty string to an int
// if (e.Value.IsNullOrEmpty()) return false;
newProperty = e.Value;
}
else if (property.PropertyInfo.PropertyType == typeof(string))
{
newProperty = e.Value;
}
else if (property.PropertyInfo.PropertyType == typeof(bool))
{
// can't parse an empty string to a bool
// if (e.Value.IsNullOrEmpty()) return false;
newProperty = e.Value;
}
else
{
// Unknown Type
return(false);
}
property.PropertyInfo.SetValue(property.Instance, newProperty, null);
return(true);
}
catch (Exception ex)
{
Debug.WriteLine("HostedAdapterBase::CheckForSetProperty Exception: " + ex.Message);
return(false);
}
}
void DataItems_DataItemValueSet(object sender, DataItemValue e)
{
DataItemValueSet.Fire(sender, e);
}