SmartClient: Version v9.1p_2014-05-27/Enterprise
Browser: Chrome Version 35.0.1916.153 m, Firefox 30.0
To reproduce the problem you can use the SmartClient "Grid Cell Widgets" demo found here: http://www.smartclient.com/#gridCellWidgets
The requirement is that the grid contains 2-3 more pages than the amount of pages rendered ahead of the current position (drawAheadRatio and quickDrawAheadRatio).
I went to the "countryData" tab and entered some more elements to make the grid larger. I simply copy/pasted the same data several times. Than pressed the "Try it" button. I have to mention that in our production system the data for each grid row is different and each row has unique primary key. But I used this demo and quick and dirty copy/paste to quickly produce some running example of the problem.
When I start scrolling the grid by dragging the scroll thumb, some buttons in the "Info" or "Comments/Stats" columns disappeared. It is intermittent and not the same buttons disappear when scrolling quickly.
If you inspect the generated HTLM in Chrome dev console, you will see that the different DOME elements for the controls are generated, but they have incorrect vertical position for the disappearing components.
This issue does not happen if you scroll by single click row by row or page by page. It only happen in fast scrolling action.
Browser: Chrome Version 35.0.1916.153 m, Firefox 30.0
To reproduce the problem you can use the SmartClient "Grid Cell Widgets" demo found here: http://www.smartclient.com/#gridCellWidgets
The requirement is that the grid contains 2-3 more pages than the amount of pages rendered ahead of the current position (drawAheadRatio and quickDrawAheadRatio).
I went to the "countryData" tab and entered some more elements to make the grid larger. I simply copy/pasted the same data several times. Than pressed the "Try it" button. I have to mention that in our production system the data for each grid row is different and each row has unique primary key. But I used this demo and quick and dirty copy/paste to quickly produce some running example of the problem.
When I start scrolling the grid by dragging the scroll thumb, some buttons in the "Info" or "Comments/Stats" columns disappeared. It is intermittent and not the same buttons disappear when scrolling quickly.
If you inspect the generated HTLM in Chrome dev console, you will see that the different DOME elements for the controls are generated, but they have incorrect vertical position for the disappearing components.
This issue does not happen if you scroll by single click row by row or page by page. It only happen in fast scrolling action.