Thank you worked like a charm.  Thanks again for putting me on the right track. 

Hi jagwynn,

There are 2 problems in you codes.
Grid uses primary key and your dialog has LABEL with key for that column instead of INPUT. It means that LABEL.val(value) will fails, because LABEL does not support val(value). In this case the
LABEL.html(value) should be used.

Same for get val() for primary key. The var value=LABEL.html() should be used. If your application uses numeric value for primary key, then that should be converted to number, like
var value = parseInt(LABEL.val(), 10).

I suggest you to treat LABEL differently. To set value, you may use something like
if (key === 'PONumber') {
 $('#' + key + 'Editor').html(val);
} else {
 $('#' + key + 'Editor').val(val);
}

However, it is not related to problem with saveChanges.

When grid uses saveChanges with primary key, then transaction(s) should have have correct primary key member within transaction.

You may do that by one of the following:

1. Hard coded preset value of primary key
       $('#dialogOK').click(function () {
            ...
            values = { PONumber: gridUpdating.rowID };
            while (len-- > 0) {
                if (keys[len] !== 'PONumber') {
                    values[keys[len]] = $('#' + keys[len] + 'Editor').val();
                 }
            }
             ...
        });

2. Pass all original values, so, primary key column will be included automatically and server will see all row-values.
$('#dialogOK').click(function () {
  ...
   values = gridUpdating.oldValues;
   while (len-- > 0) {
      if (keys[len] !== 'PONumber') {
         values[keys[len]] = $('#' + keys[len] + 'Editor').val();
      }
   }
   ...
});

Also, as I mentioned in first post,
values[keys[len]] = $('#' + keys[len] + 'Editor').val();
will set values as strings. If particular column is not string, then application should convert it to correct type.
For example, if column NASNUMBER expects integer and editor is plain INPUT, then it is better to do something like below

$('#dialogOK').click(function () {
   ...
   values = gridUpdating.oldValues;
   while (len-- > 0) {
      if (keys[len] !== 'PONumber') {
         values[keys[len]] = $('#' + keys[len] + 'Editor').val();
      } else if (keys[len] === 'NASNUMBER') {
         values[keys[len]] = parseInt($('#' + keys[len] + 'Editor').val(), 10);
      }
   }
   ...
});

Similar should be done for all other columns with not string data types.

Normal 0 false false false EN-US X-NONE X-NONE

Thank you for the sample that was exactly what I was looking to do.

 One problem that I am running into using it is that once the dialog is closed and the “savechanges” method is called for the grid the only data that is posted back to the controller is “"[{\"type\":\"row\",\"tid\":\"60d0\",\"row\":[],\"rowId\":585655}]"”

If I am not using the dialog then the correct data is posted back to controller:

"[{\"type\":\"row\",\"tid\":\"8a63\",\"row\":{\"NASNUMBER\":null,\"StoreName\":null,\"DateCalled\":null,\"ServiceTech\":null,\"PONumber\":null,\"Problem\":null,\"DispatchFor\":null,\"Completed\":true,\"DateCompleted\":null},\"rowId\":\"583149\"}]"

Any suggestions on how I can process it on the dialog to get the complete data passed back?

The code that I am using below:

View:

<script type="text/javascript">

    var gridUpdating, editDialog;

    $(function ()

     {

         $("#igGrid1").live("iggridupdatingeditrowstarting", function (evt, ui)

        {  

           startEditDialog(ui);

           return false;

        });

       $('#dialogOK').click(function ()

        {

            // keys of grid-columns

            var keys = gridUpdating.keys,

            len = keys.length,

            // new values

            values = [];

            // fill values from dialog-editors

            while (len-- > 0) {

                values[keys[len]] = $('#' + keys[len] + 'Editor').val();

            }

            // update row in grid

            gridUpdating.owner.updateRow(gridUpdating.rowID, values);

            // close dialog

            $("#igGrid1").igGrid("saveChanges");

            editDialog.dialog('close');

        });

        $('#dialogCancel').click(function ()

        {

            editDialog.dialog('close');

        });

    });

    function startEditDialog(ui)

    {

        var key, val, i = -1,

        // columns in grid

        columns = ui.owner.grid.options.columns,

        len = columns.length;

        // show which row is currently editing

        $('#rowID').html('Edit Row #' + ui.rowID);

        // save reference to arguments used by this event (for easier processing end editing)

        gridUpdating = ui;

        // optional old values in case application will need to verify new value on end editing

        ui.oldValues = {};

        // column keys (used to simplify end editing)

        ui.keys = [];

        // loop through all columns of grid and initialize editors

        while (++i < len)

        {

            // grid-column key

            key = columns[i].key;

            // save column key

            ui.keys.push(key);

            // get value of cell in row at column

            val = ui.owner.grid.getCellValue(ui.rowID, key);

            //or

            //val = ui.owner._getVal(ui.rowID, key);

            // save old value

            ui.oldValues[key] = val;

            // initialize edit-field with cell value

            // note: for simplicity, the ids of edit-fields match with name-of-column+"Editor"

            $('#' + key + 'Editor').val(val);

        }

        if (!editDialog)

        {

            // create dialog

            editDialog = $('#editDialog').dialog();

        }

        // show dialog

        editDialog.dialog('open');

    }

 </script>

 <body>

    <div id="editDialog" title="Service Call Editor" style="display:none"> 

      PO Number: <label id="PONumberEditor" /><br />

      NasNumber: <input id="NASNUMBEREditor" /><br />

      Store Name: <input id="StoreNameEditor" /><br />

      Service Tech: <input id="ServiceTechEditor" /><br />

      Dipatched For: <input id="DispatchForEditor" /><br /><br />

      Completed: <input id="CompletedEditor" /><br /><br />

      SignedBy: <input id="SignedByEditor" /><br /><br />

      <input id="dialogOK" type="button" value="OK" />

      <input id="dialogCancel" type="button" value="Cancel" />

    </div>

</body>

<p>

    @( Html.Infragistics().Grid<vLyonsServiceCall>()

      .ID("igGrid1")

      .AutoCommit(false)

      .UpdateUrl("EditingCalls")

      .PrimaryKey("PONumber")

                .Columns(column =>

                {

                    column.For(x => x.NASNUMBER).DataType("string").HeaderText("R-Number");

                    column.For(x => x.StoreName).DataType("string").HeaderText("Name");

                    column.For(x => x.DateCalled).DataType("date").HeaderText("Call Date");

                    column.For(x => x.Completed).DataType("bool").HeaderText("Completed");

                    column.For(x => x.DateCompleted).DataType("date").HeaderText("DateCompleted");

                    column.For(x => x.ServiceTech).DataType("string").HeaderText("Service Tech");

                    column.For(x => x.PONumber).DataType("number").HeaderText("Po Number");

                    column.For(x => x.Problem).DataType("string").HeaderText("Problem");

                    column.For(x => x.DispatchFor).DataType("string").HeaderText("Dispatched For");

                    column.For(x => x.SignedBy).DataType("string").HeaderText("SignedBy");

                })    

        .Features(features =>

        {

            features.GroupBy().ColumnSettings(groupedGolumn =>

            {

                groupedGolumn.ColumnSetting().ColumnKey("Name").IsGroupBy(true);

            });         

            features.Paging().PageSize(100).PrevPageLabelText("Previous").NextPageLabelText("NEXT");

            features.Sorting().Mode(SortingMode.Single).ColumnSettings(settings =>

            {

                settings.ColumnSetting().ColumnKey("Name").AllowSorting(true);

            });

            features.Selection().MouseDragSelect(true).MultipleSelection(true).Mode(SelectionMode.Row);

            features.Filtering().Mode(FilterMode.Advanced);

            features.Updating().EnableAddRow(false).EnableDeleteRow(false).StartEditTriggers(GridStartEditTriggers.DblClick);

        })

        .ClientDataSourceType(ClientDataSourceType.JSON)

        .DataSourceUrl(Url.Action("TestEditCalls"))

        .Width("100%")

        .Height("650")

        .LocalSchemaTransform(true)

        .DataBind()

        .Render() 

        )

</p>

Controller:

 [GridDataSourceAction]

        public ActionResult EditingCalls(string ig_transactions)

        {

            ArrayList transactions = (ArrayList)Procurios.Public.JSON.JsonDecode(ig_transactions);

            var ctx = new NGBDataEntities();

            var ds = ctx.vLyonsServiceCalls;

            ViewData["GenerateCompactJSONResponse"] = false;

            GridModel m = new GridModel();

            foreach (Hashtable t in transactions)

            {

                DO SOMETHING….

            }

            ctx.SaveChanges();

            return RedirectToAction("Lyons", ds);

        }