Data Changed - Continued Topic

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Problem - grid.refresh() was crashing when grid was sorted before changing data...

Suggested solution for CSV & XML was this patch

Active.HTTP.Request.prototype.response = function(data){ 
    if (this.$owner) { 
        this.$owner.setRowProperty("value", function(i){return i}); 
        this.$owner.setRowProperty("order", function(i){return i}); 
        this.$owner.setRowProperty("count", this.getCount()); 
        this.$owner.setSortProperty("index", null); 
        this.$owner.refresh(); 
    } 
} 
  We have similar problems in JS Array data

Here is the work-around patch I'm using.

Active.Controls.Grid.prototype.setAction("dataChanged", function() {
    // set data count
    var newCount = this.currentRoles.length;
    this.setDataProperty("count", newCount);
    // clear internal row state
    var rowValues = [];
    for(var i=0; i < newCount; ++i) { rowValues.push(i); }
    this.setRowProperty("values", rowValues);
    this.setSortProperty("index", null);
    // clear selection - if required
    this.setSelectionProperty("index", -1);
    this.setSelectionProperty("values", []);
  
    this.refresh();
});
  This is how it's being used.
...
function changeData() {
    // change the myData - add/edit/delete
    // tell grid about new size (remember using setDataProperty)
    obj.setDataProperty("count", myData.length);
    obj.action("dataChanged");
}
...
  My question, How can we invoke this action internally when obj.setDataProperty("count", myData.length); is called.

By the way - I can live with this extra line of code after every obj.setDataProperty("count", myData.length);

Copy paste problem - hehe

Here is the correct work-around patch I'm using.

Active.Controls.Grid.prototype.setAction("dataChanged", function() {
  var newCount = this.getDataProperty("count");
  // clear internal row state
  var rowValues = [];
  for(var i=0; i < newCount; ++i) { rowValues.push(i); }
  this.setRowProperty("values", rowValues);
  this.setSortProperty("index", null);
  // clear selection - if required
  this.setSelectionProperty("index", -1);
  this.setSelectionProperty("values", []);

  this.refresh();
});