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New Message on BDOTNET
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From: DIGITAL PIRATE
Message 2 in Discussion
Hi, You if you want to sort an arraylist that contains custom classes, then u need
to implement IComparable interface and implement it. It has just one method int
CompareTo(object) and you need to implement it by writing code that will compare the
object passed thru arugment and current instance and return appropriate value. The
return value is 0, less than zero, or greater tha zero. I hope u got this .. public
class MyClass : IComparable {
public int MyField;
public MyClass(int value){
MyField = value;
}
public int CompareTo(object) {
MyClass passedIn = (MyClass) object;
if(this.MyField != passedIn.MyField) {
if(this.MyField > passedIn.MyField) {
return 1; // this instance is greater than passed in one
}
return -1; // this instance is less than passed in one
}
return 0; // this instance is equal to passed in one
}
}
ArrayList al = new ArrayList();
al.Add(new MyClass(0));
al.Add(new MyClass(3));
al.Add(new MyClass(2));
al.Sort() HTH -Shamir
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