Concatenating specific properties values of class

[nitin_ion]

I have a class public class t1 { public string Name { get; set; } public string rr { get; set; } public string ss { get; set; } public string yy { get; set; } } i am concatenating values of a class like this var yy = string.Join("", typeof(t1).GetProperties().Select(x => x.GetValue(ttt))); i want to remove some of the properties from concatenating how can it be achieved I know that in select i can write x.property name etc.. but how can I do it in one line

[Kornfeld Eliyahu Peter]

You may add some where to your select?

I'm not questioning your powers of observation; I'm merely remarking upon the paradox of asking a masked man who he is. (V)

[nitin_ion]

then it is same as mentioning like this var yy = t1.Name + t1.rr i want to avoid that

[Kornfeld Eliyahu Peter]

I didn't get you...

I'm not questioning your powers of observation; I'm merely remarking upon the paradox of asking a masked man who he is. (V)

[nitin_ion]

I have a need to concat some property values of a class let's say

public class t1
{
public string Name { get; set; }
public string rr { get; set; }
public string ss { get; set; }
public string yy { get; set; }
}

easy way is

var yy = string.Join("", typeof(t1).GetProperties().Select(x => x.GetValue(ttt)));

but then it will have all the properties i want a way in which i can specify the properties which i want to exclude from concatenating. one way is i mention all the properties which i want to concat like this

var yy = t1.Name + t1.rr;

but then this is old fashioned and i have a class which has 70+ properties so it is laborious i want a shortcut. Hopr i make myself clear

[Kornfeld Eliyahu Peter]

So. That what I suggest. Add some where on property name to exclude them... You also can add some custom attribute to the properties you want to access and get only properties that have the specific attribute...

I'm not questioning your powers of observation; I'm merely remarking upon the paradox of asking a masked man who he is. (V)

[nitin_ion]

not sure what you mean can you write a line for the snippet

[Kornfeld Eliyahu Peter]

var oProperties = typeof(t1).GetProperties().Where(oProp => Attribute.IsDefined(oProp, typeof(MyAttribute)));

I'm not questioning your powers of observation; I'm merely remarking upon the paradox of asking a masked man who he is. (V)