I'm trying to create a VERY SIMPLE grid where a user can enter data.  No formatting, no AJAX stuff, just enter data and then submit the entire page.  It's proving to be quite a task.

I'll go into my complaints about the standard Add Row behavior in another post. But right now I can't seem to add a row to the grid using the CSOM.  Calls like this:

grid.get_rows().add({ "ID": "20", "Quantity": "1", "ModelNumber": "2", "SerialNumber": "3", "Description": "None" });

grid.get_rows().add(["20","1", "2", "3", "None" ]);

just return various different server-side errors (even though I've done all I can so that it doesn't do a postback for a new record -- can't a new row be added without a server call?)

The first method returns this error:

[InvalidCastException]: Unable to cast object of type 'System.Collections.Generic.Dictionary`2[System.String,System.Object]' to type 'System.Object[]'.

   at Infragistics.Web.UI.GridControls.GridBot.LoadAdditionalClientState(Object state)

   at Infragistics.Web.UI.Framework.RunBot.HandleRaisePostDataChangedEvent()

   at System.Web.UI.Page.RaiseChangedEvents()

   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

[HttpUnhandledException]: Exception of type 'System.Web.HttpUnhandledException' was thrown.

   at System.Web.UI.Page.HandleError(Exception e)

   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

   at System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

   at System.Web.UI.Page.ProcessRequest()

   at System.Web.UI.Page.ProcessRequest(HttpContext context)

   at ASP.netapp_newrequest_aspx.ProcessRequest(HttpContext context) in c:\Windows\Microsoft.NET\Framework64\v2.0.50727\Temporary ASP.NET Files\root\49289e6c\1b9e68a0\App_Web_0ihku952.0.cs:line 0

   at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()

   at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)

and the second call returns this error:

[NullReferenceException]: Object reference not set to an instance of an object.

   at Infragistics.Web.UI.GridControls.GridBot.LoadAdditionalClientState(Object state)

   at Infragistics.Web.UI.Framework.RunBot.HandleRaisePostDataChangedEvent()

   at System.Web.UI.Page.RaiseChangedEvents()

   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

[HttpUnhandledException]: Exception of type 'System.Web.HttpUnhandledException' was thrown.

   at System.Web.UI.Page.HandleError(Exception e)

   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

   at System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

   at System.Web.UI.Page.ProcessRequest()

   at System.Web.UI.Page.ProcessRequest(HttpContext context)

   at ASP.netapp_newrequest_aspx.ProcessRequest(HttpContext context) in c:\Windows\Microsoft.NET\Framework64\v2.0.50727\Temporary ASP.NET Files\root\49289e6c\1b9e68a0\App_Web_fwwrhmj8.0.cs:line 0

   at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()

   at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)

How can I stop these errors?  Better yet, can I get add row to occur without a server side call back?

The grid is bound to a very simple DataTable at runtime that looks like this:

 DataTable dt = new DataTable();

dt.Columns.Add(new DataColumn("ID"));
dt.Columns.Add(new DataColumn("Quantity"));
dt.Columns.Add(new DataColumn("ModelNumber"));
dt.Columns.Add(new DataColumn("SerialNumber"));
dt.Columns.Add(new DataColumn("Description"));

dt.PrimaryKey = new DataColumn[] { dt.Columns["ID"] };

dt.Rows.Add(new object[] { "0" });
dt.Rows.Add(new object[] { "1" });
dt.Rows.Add(new object[] { "2" });
dt.Rows.Add(new object[] { "3" });

hardware.DataSource = dt;
hardware.DataBind();
hardware.DataKeyFields = "ID";

Thanks for any assistance.