internal ITrackingConfiguration Property <T, TProperty>(string name, Expression <Func <T, TProperty> > propertyAccessExpression, bool defaultSpecified, TProperty defaultValue)
{
if (name == null && propertyAccessExpression.Body is MemberExpression me)
{
// If not specified, use the entire expression as the name of the property.
// Note: we don't use just the member name because it might conflict with
// another property that uses a different expression but the same member name
// e.g. "firstCol.Width" and "secondCol.Width".
name = me.ToString();
}
var membershipExpression = propertyAccessExpression.Body;
var getter = propertyAccessExpression.Compile();
var right = Expression.Parameter(typeof(object));
var propType = membershipExpression.Type;
var setter = Expression.Lambda(Expression.Block(Expression.Assign(membershipExpression, Expression.Convert(right, membershipExpression.Type)), Expression.Empty()), propertyAccessExpression.Parameters[0], right).Compile() as Action <T, object>;
if (defaultSpecified)
{
TrackedProperties[name] = new TrackedPropertyInfo(x => getter((T)x), (x, v) => setter((T)x, v), defaultValue);
}
else
{
TrackedProperties[name] = new TrackedPropertyInfo(x => getter((T)x), (x, v) => setter((T)x, v));
}
return(this);
}
internal TrackingConfiguration Property <T, TProperty>(string name, Expression <Func <T, TProperty> > propertyAccessExpression, bool defaultSpecified, TProperty defaultValue)
{
if (name == null && propertyAccessExpression.Body is MemberExpression me)
{
name = me.Member.Name;
}
var membershipExpression = propertyAccessExpression.Body;
var getter = propertyAccessExpression.Compile();
var right = Expression.Parameter(typeof(object));
var propType = membershipExpression.Type;
var setter = Expression.Lambda(Expression.Block(Expression.Assign(membershipExpression, Expression.Convert(right, membershipExpression.Type)), Expression.Empty()), propertyAccessExpression.Parameters[0], right).Compile() as Action <T, object>;
if (defaultSpecified)
{
TrackedProperties[name] = new TrackedPropertyInfo(x => getter((T)x), (x, v) => setter((T)x, v), defaultValue);
}
else
{
TrackedProperties[name] = new TrackedPropertyInfo(x => getter((T)x), (x, v) => setter((T)x, v));
}
return(this);
}
