I have a webdatatree control based on which the data for my webhierarchicaldatagrid is bound with.

Say I made some changes in the grid and without submitting the page I click on another node of the tree I need to confirm with the user for the unsaved changes and if the user opts to undo the changes, I get the following error.

Exception Type: Infragistics.Web.UI.GridControls.MissingRecordException

Message:

========

Requested record cannot be found by key.

Stack Trace:

============

   at Infragistics.Web.UI.GridControls.EditingCore.OnAction(String actionType, Object id, Object value, Object tag)

   at Infragistics.Web.UI.GridControls.GridBehavior.Infragistics.Web.UI.GridControls.IGridBehavior.OnAction(String actionType, Object id, Object value, Object tag)

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

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

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

   at Infragistics.Web.UI.GridControls.GridBot.HandleRaisePostDataChangedEvent()

   at Infragistics.Web.UI.GridControls.ContainerGrid.RaisePostDataChangedEvent()

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

   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)InnerException 1

My code

 Sys.Application.add_init(application_init);

 function application_init() {

var prm = Sys.WebForms.PageRequestManager.getInstance();
            prm.add_initializeRequest(prm_initializeRequest);}

function prm_initializeRequest(sender, args) {
            try {
 
                //var tree = $find("<%= wdtTree.ClientID %>");
                var grid = $find("<%= whdgGrid.ClientID %>");
                var hasChanges = false;
                if (grid != null) {
                    if (grid.get_gridView()._actionList._count > 0) {
                        hasChanges = true;
                    }
                }
 
                if (sender._postBackSettings.sourceElement.id == "<%= wdtTree.ClientID %>" && hasChanges==true)
                 {
                     grid.get_gridView().get_behaviors().get_editingCore().clearBatchUpdates();
                     //grid.get_gridView()._actionList.clear();
                 }
 
                else if (sender._postBackSettings.sourceElement.id != '<%= btnSubmit.ClientID %>' && hasChanges ==true) 
                {                                                        
                            var submitChanges = confirm("Well allocation data has been modified do you want to review and save the changes?");
                            if (!submitChanges)
                              grid.get_gridView().get_behaviors().get_editingCore().clearBatchUpdates();
                            else {                            
                                alert("Please click on submit button to save changes.");                                                                                               
                                args.set_cancel(true);
                            }                        
                    }                   
 
            } catch (e) {}           
        }

thanks