linq - C# : Checking if an object (who has a min and max property) falls between any existing objects? Explained inside -

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i wonder if can help?

i have list collection of objects, each object has min , max property.

so imagine have 

 id : 1  min : 10  max : 49   id : 2  min : 50  max : 69   id : 3  min : 70  max : 89

i should not allowed create new object so.

 id : 4  min : 88  max : 91

as falls within range of have already. (it overlaps id 3) hence no overlapping ranges.

i did try solve so, isn't working

    var test =             myobjects.findall(                 o => myminval.value >= o.min && mymaxval.value <= o.max).tolist();

so if test not null, means have overlap.

i have tried reversing greater , less signs....

any ideas how work?

thanks in advance

edit

also take example object, should fail although doesn't clash specific 1 object! clashes when @ 3 original.

 id : 4  min : 5  max : 91

i hope makes sense

you're not checking enough things.

basically need see if either min in range, or if max in range of objects. here's unit test w/ working lambda:

[testclass] public class overlap {      list<testdata> data = new list<testdata>     {         new testdata { id = 1, min = 10, max= 49},         new testdata { id =2, min=50, max=69},         new testdata { id=3, min = 70, max = 89}     };      [testmethod]     public void boundarycheck()     {         var mydata = new testdata { id=4, min=69, max=100};          bool fail = data.any(d => (d.min <= mydata.min && d.max >= mydata.min) ||                                    (d.max >= mydata.max && d.min <= mydata.max));          assert.istrue(fail);     }      class testdata     {         public int id { get; set; }         public int min { get; set; }         public int max { get; set; }     } }

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