@(Html.Infragistics().Grid(Model.Companies)
			  .ID("companyGrid")
			  .AutoGenerateColumns(false)
			  .Width("100%")
			  .PrimaryKey("Id")
			  .Height("25%")
			  .Features(f =>
			  {
				  f.Selection().Mode(SelectionMode.Row).MultipleSelection(true);
				  f.Filtering().Type(OpType.Local).Mode(FilterMode.Simple).CaseSensitive(false);
				  f.Sorting().ColumnSettings(x => x.ColumnSetting().ColumnKey("Name").CurrentSortDirection("asc"));
				  f.RowSelectors()
					  .EnableCheckBoxes(true)
					  .EnableRowNumbering(false)
					  .AddClientEvent("checkBoxStateChanged", "gridCheckBoxChanged");
			  })
			  .Columns(c =>
			  {
				  c.For(x => x.Id).Hidden(true);
				  c.For(x => x.Name).HeaderText("Company").Width("100%");
			  })
			  .DataSource(Model.Companies)
			  .DataBind()
			  .Render())

Hello Sebastian,

I created a JavaScript sample based on your configuration, but still cannot reproduce the issue. Can you please check what is your Ignite UI version by executing the following code in the browser's JavaScript console:

$.ui.igGrid.version 

Is it possible to check the checkbox using the mouse?
Can you check whether there are some JavaScript errors in the console. 

I'm also attaching my sample for your reference.

Best regards,
Martin Pavlov
Infragistics, Inc.

We got it working like that. But we have to do it on startup. so when the event rowsrendered is fired we select the needed rows. and this doesn't work.

$(document).delegate("#grid1", "iggridrowsrendered", function () {
	$('#grid1').igGridSelection('selectRow', 1);
});

but when we set a timout of 1ms it works

$(document).delegate("#grid1", "iggridrowsrendered", function () {
	setTimeout(function () {
		$('#grid1').igGridSelection('selectRow', 1);
	}, 1);
});

is there another event that triggers later than iggridrowsrendered? because it seems when iggridrowsrendered is trigger not all elements are present yet

Hello Sebastian,

The only event that triggers after igGrid.rowsRendered event is the igGrid.rendered, but this event fires only once when the grid is initially created. I logged an internal issue with Development ID 216216 to investigate whether we can make the API work in the rowsRendered event.

I also created a case on your behalf with number CAS-170937-G7V2W5, so that you can be notified when there is a resolution for the issue.

You can find your active cases under Account - Support Activity in our website. Select your ticket and go to Development Issues tab to view the status of related development issues.

Best regards,
Martin Pavlov
Infragistics, Inc.

thanks for the help.