UniDbGrid

[rtalmeida]

is it possible to capture the unidbgrid scroll event?

[Sherzod]

4 hours ago, rtalmeida said:

is it possible to capture the unidbgrid scroll event?

Hi,

One possible solution:

function afterCreate(sender)
{
    // you can use 'scrollend' or 'scroll' events
    sender.getView().on('scrollend', function(view, scrollX, scrollY) {
        //ajaxRequest
    });
}

 

[rtalmeida]

Is it possible to give me an example with more details? I need that when scrolling the mouse the records accompany.

[Sherzod]

42 minutes ago, rtalmeida said:

Is it possible to give me an example with more details? I need that when scrolling the mouse the records accompany.

You can pass scroll positions: 

scrollX, scrollY

Or what do you mean?

[rtalmeida]

I set an example in VCL and the same in Unigui

GridUnigui.zip

GridVcl.zip

[Sherzod]

37 minutes ago, rtalmeida said:

I set an example in VCL and the same in Unigui

GridUnigui.zip

GridVcl.zip

Need to analyze

[rtalmeida]

OK thank you

[rtalmeida]

Sorry to bother, but my client insists that it works as it is on the desktop, if it is not possible I will change the strategy

[Sherzod]

I will analyze and try to give you a possible solution.

[Sherzod]

7 hours ago, rtalmeida said:

Sorry to bother, but my client insists that it works as it is on the desktop, if it is not possible I will change the strategy

Try this...

function afterCreate(sender) {
    var grid = sender;

    sender.getView().on('scrollend', function(view, scrollX, scrollY) {
        var vTop = grid.view.el.getTop(),
            vBottom = grid.view.el.getBottom(),
            top, bottom, hHeight = grid.headerCt.getHeight();


        Ext.each(grid.view.getNodes(), function(node) {
            if (!top && Ext.fly(node).getTop() > vTop) {
                top = grid.view.getRecord(node).data._r;
            }
            if (Ext.fly(node).getBottom() - Ext.fly(node).getHeight() < vBottom) {
                bottom = grid.view.getRecord(node).data._r;
            }
        });

        if (top != 1) {
            top += 1;
        }
        bottom += 1;
        
        if (top == 1) {
            grid.getSelectionModel().select(0)
        } else if (bottom == grid.getStore().count()) {
            grid.getSelectionModel().select(grid.getStore().count())
        } else {
            grid.getSelectionModel().select(Math.round((bottom + top) / 2))
        }

        grid.ensureVisible(grid.getSelection()[0]);
    });
}

 

[rtalmeida]

He loses himself a little, but he has helped me a lot, thanks.