How to add Multiple models in collection ?

Question

I have 3 different collection

 

public class Sample1

{

public int Id1 { get; set; }

public string Name1 { get; set; }

public bool Ischecked1 { get; set; }

}

public class Sample2

{

public int Id2 { get; set; }

public string Name2 { get; set; }

public bool Ischecked2 { get; set; }

}

public class Sample

{

public int Id { get; set; }

public string Name { get; set; }

public bool Ischecked { get; set; }

}

 

ObservableCollection<Sample> SampleData = new ObservableCollection<Sample>();

ObservableCollection<Sample1> SampleData1 = new ObservableCollection<Sample1>();

ObservableCollection<Sample2> SampleData2 = new ObservableCollection<Sample2>();

 

Add these  ObservableCollection into 1 collection.

 

Thanks in advance ...