Hello Andrew,

Thank you for posting in our community.

I am currently trying to reproduce the described behavior in a working sample. I will keep you posted on my progress and I will get back to you soon with more information or questions.

Please feel free to continue sending updates to this case ta any time.

2845.igGridCellTemplate1.zip

pagerRendered: function (evt, ui) {
	var dataSource = ui.dataSource.recordsForPage(ui.owner.pageIndex());
	$.each(dataSource, function (index, row) {
		$("#grdlist_" + row.ProductID).CustomList({
			'id': 'grdlist_' + row.ProductID,
			'dataSource': ListData,
			'valueKey': 'col1',
			'textKey': 'col2',
			'selected': row.ProductID,
			'externalColumns': ListCols,
			'callback': onGridListSelection
		});
	});
}

2703.igGridCellTemplate1.zip

By design when Selection feature is enabled persist option is set to true by default which means that any row being selected should remain selected after a paging (includes the remote paging as well) is performed. This behavior may differ if you are performing any data binding logic in any of the corresponding paging events.

If this is not the case in your scenario can you please try modifying martin`s sample so that it replicates the issue and I will investigate this matter further.

Looking forward to hearing from you.

In your scenario, this means that when the selection is changed the underlying cell value is not modified - just the selected value in the igCombo. When page is changed, new combo editors are rendered and the previously selected values are not persisted (unless your custom logic is applied). For example if the selectionChanged event of the combo is handled so that the new selection is saved in an external source so that it can be retrieved later when the combo is re-created.

pagerRendered: function (evt, ui) {
							var dataSource = ui.dataSource.recordsForPage(ui.owner.pageIndex());
							$.each(dataSource, function (index, row) {
							//find selected value for this combo so that we can check whether it already exists in the list with selected values
							var sv = selValueForCombo.find(function(v) { return v.id === "grdlist_" + row.ProductID;});
								$("#grdlist_" + row.ProductID).igCombo({
									dataSource: comboData,
									textKey: "Name",
									valueKey: "Name",
									width: "200px",
									autoComplete: true,
									enableClearButton: false,
									//if there is a previously selected value set it as selected, otherwise set it to empty
									initialSelectedItems: [{ value: sv ? sv.selVal : "" }],
									selectionChanged: function(evt, ui){
										//add selection to the selected values for all combos
										saveComboSelection(evt.target.id,ui.items[0].data.Name );	
									}
								});
							});
						}

I have created a small sample illustrating my suggestion for your reference. 

I hope you will find my information helpful.

Thank you for using Infragistics controls.

7271.igGridCellTemplate1Modified.zip