How can I sort a VB Script array other than in case-sensitive alphanumeric order? What is I want to display another order like numeric value, length of string, or even a random value?

In order to sort an array in a customized manner, you first have to implement the sort() method of the JScript array in VBScript. Because JScript and VBScript arrays are not directly interchangeable, the two functions below take a VBScript array and pass it to JScript to do the sorting, then pass it back to VBScript

<script language=JScript runat=server>
function SortVBArray(arrVBArray) {
return arrVBArray.toArray().sort().join('\b');
}
</script>

<%
Function SortArray(arrInput)
SortArray = Split(SortVBArray(arrInput), Chr(8))
End Function
%>

VBScript array, when passed to the SortArray function, will be sorted in case-sensitive alphanumeric order. Custom sorting in works like this: The sort() method takes one parameter which must be a JScript function: sort(MyCustomSortFunction). The JScript function (MyCustomSortFunction) must be set up to take two parameters, compare them and return 1 if the first parameter should come after the second parameter in the sort, -1 if the first should come before the second and 0 if they are equal

Here is an example of a custom sort function:

function SortByLength(a, b) {
if (a.length > b.length) {
return 1// a is longer
}
else {
if (a.length < b.length) {
return -1// a is shorter
}
else {
return 0// same size
}
}

// The below returns -1, meaning that PC is a shorter
// word and comes before Mac on the list:
Response.Write(SortByLength("PC", "Mac"));

When this function is passed to the sort() method, the sort method uses the function to sort instead of using its innate method (case sensitive alphanumeric). Making the change below sorts by length of element (assuming all can be evaluated as strings):

<script language=JScript runat=server>
function SortVBArray(arrVBArray) {
return arrVBArray.toArray().sort(SortByLength).join('\b');
}
</script>

Here are some pre-written functions for sorting you can plug into your application. Just pass the function name to the sort(MyFunction) method/p>

<script language=JScript runat=server>
// Sorts records in pseudo-random order
function sRandom() {
return ((Math.random()>=0.5) ? 1 : -1);

// Sorts records in ascending, case-insensitive
// alpha-numeric order.
function sNoCaseAsc(a, b) {
return ((a.toUpperCase()>b.toUpperCase()) ? 1 : ((a.toUpperCase()<b.toUpperCase()) ? -1 : 0));

// Sorts records in descending, case-insensitive
// alpha-numeric order.
function sNoCaseDsc(a, b) {
return ((a.toUpperCase()>b.toUpperCase()) ? -1 : ((a.toUpperCase()<b.toUpperCase()) ? 1 : 0));

// Sorts records in ascending
// numeric value order
function sNumAsc(a, b) {
return ((+a > +b) ? 1 : ((+a < +b) ? -1 : 0));

// Sorts records in descending
// numeric value order
function sNumDsc(a, b) {
return ((+a > +b) ? -1 : ((+a < +b) ? 1 : 0));

// Sort records in ascending
// string length order
function sLenAsc(a, b) {
return ((('' + a).length > ('' + b).length) ? 1 : ((('' + a).length < ('' + b).length) ? -1 : 0));

// Sort records in descending
// string length order
function sLenDsc(a, b) {
return ((('' + a).length > ('' + b).length) ? -1 : ((('' + a).length < ('' + b).length) ? 1 : 0));
}
</script>