CODEWITHSUNDEEP
devexpresswpf-4.0gridcontrol
Jay Shukla
Jay Shukla

Reputation: 792

Load more data when scroll bar rechead in last row in DevExpress GridControl using wpf?

Load more data when scroll bar reached in last row in DevExpress GridControl using wpf? I have 100 rows in my GridControl in DevExpress but I want to Load 20 at the loading time and next 20 data will load when we scroll down in GridControl. Basically I want a event of GridControl when GridControl Scrollbar reached in last row, next 20 data will load, so is there solution please help me.

Any help will be appreciated!

Upvotes: 1

Views: 727

Answers (1)

PovilasZ
PovilasZ

Reputation: 301

You can create a behavior for this and attach it to TableView which is under GridControl. Also you can provide a command for behavior to execute when bottom is reached through attached property. Hope this helps.

public class IsScrolledToBottomBehavior : Behavior<TableView>
{
    protected override void OnAttached()
    {
        base.OnAttached();
        AssociatedObject.AddHandler(ScrollViewer.ScrollChangedEvent, new ScrollChangedEventHandler(OnScrollChanged));
    }

    protected override void OnDetaching()
    {
        base.OnDetaching();
        AssociatedObject.RemoveHandler(ScrollViewer.ScrollChangedEvent, new ScrollChangedEventHandler(OnScrollChanged));
    }

    private void OnScrollChanged(object sender, ScrollChangedEventArgs e)
    {
        if(((ScrollViewer)e.OriginalSource).VerticalOffset == ((ScrollViewer)e.OriginalSource).ScrollableHeight)
        {
            // do rows loading here
        }
    }
}

Upvotes: 1

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