Hi Tatsushi Kiryu

I using Chrome Version 58.0.3029.110 (64-bit) on OS Linux mint 18 mate 

I uploaded code to jsfiddle: http://jsfiddle.net/dbL9rhcu/2/

My data contain \n (newline), so I think errors happen. Can you review it?

Hello Bui Hien,

Thank you for sending me a reproducible sample.

There is no error in your sample, but it seems that some rows have too much height due to their cell values.

So I suggest to apply CSS as follow.

```
tbody td {
white-space: nowrap; /* or 'pre' */
}
```

I hope you try it.

Best regards,
Tatsushi Kiryu
Developer support Engineer
Infragistics

Hello Bui Hien,

I'm afraid igGridSummaries doesn't have tooltip functionality.
But, if you want to show tooltip for summary cells, you can customize with jQuery UI tooltip.

Here is a sample code.

``` JavaScript
$("#grid").igGrid({
width: "100%",
height: "600px",

// any other configurations

// initialize jQuery UI tooltip When footerRendered event fires.
// http://www.igniteui.com/help/api/2016.2/ui.iggrid#events:footerRendered
footerRendered: function (evt, ui) {
ui.table.tooltip({
tooltipClass: 'foo',
// http://www.igniteui.com/help/api/2016.2/ui.iggridsummaries#theming:ui-iggrid-summaries-footer-text-container
items: '.ui-iggrid-summaries-footer-text-container',
content: function () {
return this.textContent;
}
});
},

// any other configurations
});
```

``` CSS
.foo {
opacity: 1;
}
```

I hope this will help.

Best regards,
Tatsushi Kiryu
Developer support Engineer
Infragistics

Hi Tatsushi Kiryu

After i apply CSS following guide, problem is resolved. http://jsfiddle.net/dbL9rhcu/3/

But when i use summaries features of grid, content of cell summaries too long and it don't display full content. How i can show tooltip like cell of grid?