CommandBase GetCurrentValue(ObservableObject observableObject)
{
try
{
var value = propertyAccessor.Getter(observableObject);
isValueValid = true;
return(value);
}
catch (Exception e)
{
if (isValueValid)
{
EventSource.Log.UnableSubsequentlyToReadProperty(propertyAccessor.ObjectTypeName, propertyAccessor.Name, e.ToString());
}
isValueValid = false;
return(default);
internal ParameterizedCommandValueBag(
[NotNull] ObservableObject observableObject,
[NotNull] ParameterizedCommandPropertyAccessor propertyAccessor)
{
this.propertyAccessor = propertyAccessor;
try
{
currentValue = propertyAccessor.Getter(observableObject);
isValueValid = true;
}
catch (Exception e)
{
EventSource.Log.UnableInitiallyToReadProperty(propertyAccessor.ObjectTypeName, propertyAccessor.Name, e.ToString());
}
if (currentValue != null)
{
currentIsExecuting = currentValue.RunningExecution != null;
isIsExecutingValid = true;
}
}
public override void UpdateNewValue(ObservableObject observableObject)
{
try
{
newValue = propertyAccessor.Getter(observableObject);
isValueValid = true;
}
catch (Exception e)
{
if (isValueValid)
{
EventSource.Log.UnableSubsequentlyToReadProperty(propertyAccessor.ObjectTypeName, propertyAccessor.Name, e.ToString());
}
isValueValid = false;
}
if (isValueValid && newValue != null)
{
newIsExecuting = newValue.RunningExecution != null;
isIsExecutingValid = true;
}
}