Filter Util.Dif to only non-matched properties

JohnGoldsmith

First, I love the new Dif method in 5.25. I see that as well as comparing the same types, you can also compare objects of different types which is great.

One question though, is, is there an easy way to filter the dump output to just show the non-matching properties?

Many thanks,

John

JoeAlbahari

Good call - I'll add an option for this in the next build.

JohnGoldsmith

Great! It gets better and better

JoeAlbahari

The new build is available now:
https://www.linqpad.net/download.aspx#beta

JohnGoldsmith

Very nice! Thank you. I like the way when comparing different types the shared properties are sorted to the top and the filtering really helps see the wood for trees:

JohnGoldsmith

Hello Joe,

One more question - does this work with the exclude parameter in Dump? I'm finding the following doesn't exclude the named properties, but maybe this is the result object rather than the underlying one?

void Main()
{
var one = new One() {
A="alan",
B="bob",
C="charles",
D="david",
E="ed"
};

var two = new Two()
{
A = "andy",
C = "cyril",
E = "ed"
};

Util.Dif(one, two, hideMatchingMembers: true).Dump(exclude: "B");
Util.Dif(one, two, hideMatchingMembers: true).Dump(exclude: "C");
}

public class One
{
public string A { get; set; }
public string B { get; set; }
public string C { get; set; }
public string D { get; set; }
public string E { get; set; }
}

public class Two
{
public string A { get; set; }
public string C { get; set; }
public string E { get; set; }
}

JohnGoldsmith

Can I bump this question?

I'm still haven't discovered a good way to exclude members from the dif result. If I save the Dif output to a var I can see the List in the Members property of the MemberDifNode, but I guess they're private at the moment?

JoeAlbahari

You could try this:

Util.Dif (Util.ToExpando (one, exclude:"B"), Util.ToExpando (two, exclude:"B"), hideMatchingMembers: true).Dump ();

JohnGoldsmith

Ah, perfect. I hadn't considered filtering the inputs. Thanks very much Joe.