[flexcoders] How to determine if an array is empty.

[greenfishinwater]

I am using HTTPService to return a result set, under normal
circumstances there will be 100s of records returned, so I determine
the total number of records in this way:

This function is called from the result handler of the HTTPService

private function handleNewProductsResult(evt:ResultEvent):void {
  newProductCount = evt.result.products.product.length;

But as I discovered if there are no records or only a single record
that does not work. So I came up with the following which works:

private function handleNewProductsResult(evt:ResultEvent):void {
  if (newProductListDG.dataProvider != null) {
    newProductCount = newProductListDG.dataProvider.length;
  } else {
    newProductCount = 0;
  }

newProductListDG is the grid that displays the records and is bound
directly to getNewProducts.lastResult.products.product

getNewProducts is the id of the HTTPService

Is there a better way of doing this?

Thanks

Andrew





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