public void CustomDynamicHasProperty()
{
// not great rhs has to be a specific type of class that derives from DynamicObject
dynamic a = new CustomDynamic();
Assert.DoesNotThrow(() => a.Test());
}
static void Main(string[] args)
{
ClsLevel1 levelRoot = new ClsLevel1();
if (levelRoot?.ClsLevel2?.ClsLevel3 != null)
{
// will enter here you you do not comment the content of the ClsLevel1 constructor
}
dynamic dinRoot = new CustomDynamic();
dynamic DinLevel1 = new CustomDynamic();
dynamic DinLevel2 = new CustomDynamic();
dynamic DinLevel3 = new CustomDynamic();
dinRoot.DinLevel1 = DinLevel1;
dinRoot.DinLevel1.DinLevel2 = DinLevel2;
// dinRoot.DinLevel1.DinLevel2.DinLevel3 = DinLevel3; // You can comment this line to test
dynamic foo = new CustomDynamic();
if (foo.Boo?.Lol ?? true)
{
Console.WriteLine("It works!");
}
if (dinRoot?.DinLevel1?.DinLevel2?.DinLevel3 == null)
{
Console.WriteLine("There is something null!");
}
else
{
Console.WriteLine("Nothing null in the chain!");
}
//Console.ReadLine();
//if (!dinRoot.IsNull(p => p.DinLevel1.DinLevel2))
//{
// //Nothing is null
//}
if (dinRoot?.DinLevel1?.DinLevel2?.DinLevel3 != null)
{
// Obviously it will raise an exception because the DinLevel3 does not exists
}
}
private CustomDynamic GetTestDynamic()
{
dynamic dinRoot = new CustomDynamic();// ExpandoObject();
dynamic DinLevel1 = new CustomDynamic();
dynamic DinLevel2 = new CustomDynamic();
dynamic DinLevel3 = new CustomDynamic();
dinRoot.ContainsProperty("prop");
dinRoot.DinLevel1 = DinLevel1;
dinRoot.DinLevel1.DinLevel2 = DinLevel2;
//dinRoot.DinLevel1.DinLevel2.DinLevel3 = DinLevel3; // You can comment this line to test
return(dinRoot);
}
public void MyExpando_NotNullExpando()
{
dynamic dinRoot = null;
if (dinRoot == null)
{
Console.WriteLine("Its Nulll!");
}
dinRoot = new CustomDynamic();// ExpandoObject();
if (dinRoot != null)
{
Console.WriteLine("Its Not Null!");
}
dynamic DinLevel1 = new CustomDynamic();
if (dinRoot.DinLevel1 == null)
{
Console.WriteLine("Its Null!");
}
dinRoot.DinLevel1 = DinLevel1;
if (dinRoot.DinLevel1 != null)
{
Console.WriteLine("Its Not Null!");
}
if (dinRoot.DinLevel1.SomeNull == null)
{
Console.WriteLine("Its Null works!");
}
if (dinRoot.DinLevel1?.SomeNull == null)
{
Console.WriteLine("Its Null works!");
}
dynamic DinLevel2 = new CustomDynamic();
dynamic DinLevel3 = new CustomDynamic();
dinRoot.DinLevel1.DinLevel2 = DinLevel2;
if (dinRoot.DinLevel1.DinLevel2.DinLevel3 == null)
{
Console.WriteLine("Its Null works!");
}
//Should raise and exception because DinLevel3 is null right now
//if (dinRoot.DinLevel1.DinLevel2.DinLevel3.SomeNull == null)
//{
// Console.WriteLine("Its Null works!");
//}
if (dinRoot.DinLevel1?.SomeNull == null)
{
Console.WriteLine("Its Null works!");
}
if (dinRoot.DinLevel1?.DinLevel2?.DinLevel3 == null)
{
Console.WriteLine("Its Null works!");
}
dinRoot.DinLevel1.DinLevel2.DinLevel3 = DinLevel3; // You can comment this line to test
if (dinRoot.DinLevel1?.DinLevel2?.DinLevel3 != null)
{
Console.WriteLine("Its Not works!");
}
if (dinRoot.DinLevel1?.DinLevel2?.DinLevel3.SomeNull == null)
{
Console.WriteLine("Its Null works!");
}
DinLevel3.SomeList = new List <string>()
{
"Item1", "Item2"
};
if (dinRoot.DinLevel1?.DinLevel2?.DinLevel3?.SomeList != null)
{
Console.WriteLine("Its Null works!");
}
if (dinRoot.DinLevel1?.DinLevel2?.DinLevel3?.SomeList[0] != null)
{
Console.WriteLine("Its Null works!");
}
dinRoot.NovaProp = "sdsd";
dinRoot.ContainsProperty("NovaProp", true);
dinRoot.ContainsProperty("DinLevel3", true);
dinRoot.ContainsProperty("SomeList", true);
CustomDynamic.ContainsProperty(dinRoot, "DinLevel3", false);
CustomDynamic.ContainsProperty(dinRoot, "DinLevel3", true);
dinRoot.RandomProp = "Some random prop";
CustomDynamic.ContainsProperty(dinRoot, "RandomProp", false);
CustomDynamic.ContainsProperty(dinRoot, "RandomProp", true);
}
