question related to array

[noshaba]

is there any way to find out that how many nodes of an array are filled with some value

for example if i have an array like

String[] strarr = new string[10];


and i have put some values in this array using some loop ... but i dnt know each time how many values would b moved in the array

now i wanna read the array to that point where the last value is stored

can i know this thing
in c#
plz help