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c#countlistboxvariable-length

ListBox GetSelectedIndices Count vs Length

In my web application, I created a ListBox that is populated with a list of items. I have been doing some research and discovered that I can count the number of selected items with the code below in my IF statement.

Using C#, aspx

If (ListBox1.GetSelectedIndices().Count() > 0) {
//do something
}
else { //do something else
}

I have also discovered another property called Length, which seems to do the same exact thing.

If (ListBox1.GetSelectedIndices().Length > 0) {
//do something
}
else { //do something else
}

Is there any difference between the 2? Both seem to satisfy my condition in how I am use it, but not sure if 1 way is better/faster than the other, etc.. Any input is appreciated. Thanks.

Solution

  • I think that ListBox inherits or implements Enumerable that has an option to return Count the number of elements in the list.

    The ListBox also has it own method called .Length which has a similar effects but specifically used in the class ListBox

    If I would have to choose between two I would go with Lenght