Could you explain more about _stockGenerators, _snapshotQueue, _snapshotSender?

[DarioCrivelli]

The sample page you are using as a base point sets the cell highlighting (i.e. "hot") color for all changed fields based on the change of the "last_price" field value. This necessarily involves a two-phase process:
in "updateItem" the change is analyzed and the proper color is stored in an extra field (namely 214);
then, in "formatValues", the color is assigned as the "hot" background color to all the cells in the row (note that only changed cells will be highlighted).
Does this still work for the "last_price" field?

Other code is not relevant for you; the only relevant code is:

function updateItem(item, updateInfo) {
   if (updateInfo == null) {
      return;
   }

   var oldLast = updateInfo.getOldValue("last_price");
   var newColor;
   if (oldLast == null) { //first update for this item
      updateInfo.addField(214,greenColor,true);
   } else if (updateInfo.isValueChanged("last_price")) {
      //at least second update
      if (oldLast > updateInfo.getNewValue("last_price")) {
         updateInfo.addField(214,redColor,true);
      } else {
         updateInfo.addField(214,greenColor,true);
      }
   } 
} 


function formatValues(item, itemUpdate) {
   if (itemUpdate == null) {
      return;
   }

   itemUpdate.setHotTime(600);

   //choose the backgroundColor
   var backC = (item % 2 == 1) ? "#eeeeee" : "#ddddee";
   var backH = itemUpdate.getServerValue(214);
   itemUpdate.setRowAttribute(backH,backC,"backgroundColor");
}

You seem to require two changes:

1. The change of "last_price" should only affect the "last_price" cell; you can accomplish this by using the "setAttribute" API in place of the "setRowAttribute"; please find the details on these APIs here (the online web client APIs documentation root is http://www.lightstreamer.com/docs/cl...doc/index.html).
2. The same code should be replicated for all the desired fields; this implies that you have to use more extra fields; you may prefer to name them by names (e.g. "last_price_color" in place of 214).

[tuongkha]

Dear Dario,
thanks for your help. i found my error. i forgot call updateItem(), formatValues() method.

newTable.setClearOnDisconnected(true); //default is false
newTable.setClearOnRemove(true); //default is false
newTable.onItemUpdate = updateItem;
newTable.onChangingValues = formatValues;
newTable.setPushedHtmlEnabled(true);

in my html.

[indrajit]

Hi Dario & Tuongkha,

I changed the ExternalFeed.cs file according to my requirements and I can built it successfully, Now I want to implement this file on to lightstremer to get the changes according to my requirements in the browser So, for that what should I do ?
where should I place the ExternalFeed.dll and what are the steps to be followed to get the changes?


Thanks,

[DarioCrivelli]

The full story is documented in

DOCS-SDKs\sdk_adapter_dotnet\doc\DotNet Adapters.pdf

where a step by step deployment of the Remote StockListDemo is shown. You should just replace the Data Adapter dll.
In a few words, you have to mount special Proxy Adapters, supplied with Lightstreamer on the Server and ensure that the client pages ask for data from those adapters; then launch Lightstreamer Server and the Remote Server.
For any problems in this phase, I revert to this thread.