Nested grid scroll sensitivity

[swatiagarwal]

Hi Team,

I have a nested grid. At times I am scrolling and looking at the data in the inner grid and the mouse pointer goes out of inner grid. When this happens, it starts scrolling up the screen as if we were on the outer scroll bar even though we never touched the outer scroll bar. Can we make this a little less sensitive so that we’d at least have to touch the outer scroll bar before scrolling would commence?

Unable to attach the video. However this can be replicated here : https://www.smartclient.com/smartgwt...ed_nested_grid

Regards,
Swati

[swatiagarwal]

Duplicate : https://forums.smartclient.com/forum...ll-sensitivity

[Isomorphic]

You can use the following approach to achieve what you want:

    expansionRelatedProperties: {
        mouseWheel : function () {return false;}
    }

However, note that it’s normal for nested scrolling regions to work in the way we have them work by default, so this approach may violate end user expectations.

Regards
Isomorphic Software

[swatiagarwal]

Hi Isomorphic

We are using SmartGWT.
grid..getExpansionRelated() returns null in both the parent and nested grid. How do we set the above property in our grid using smartGWT.

[Isomorphic]

Sorry for that. In SmartGWT you can call addMouseWheelHandler() in the nested ListGrid as follows:

                listGrid.addMouseWheelHandler(new MouseWheelHandler() {

                    @Override
                    public void onMouseWheel(MouseWheelEvent event) {
                        event.cancel();
                    }

                });

Regards
Isomorphic Software

[swatiagarwal]

Sorry for the late response. I tried this but even after adding this if the mouse pointer goes outside the nested grid the screen gets shifted. Is there anything else that i can try

[Isomorphic]

Do you mean that the whole browser page moves, when you use the scroll wheel after moving the mouse outside of the grid?

Please try to be more specific when posting, that's a terribly vague statement, which just wastes our time and yours.