VerticalScrollState and EnableKineticScrolling Problem

[Bekir]

Hi,
When I set in RadListView "VerticalScrollState" to "AlwaysHide", kinetic scrolling doesn't work and mouse wheel scrolling doesn't work. I don't want to see scroll bar and I want to hide it. And also "VerticalScroll.Visible = false" doesn't work.
Best regards.

[Ivan Petrov]

Hello Bekir,

Thank you for writing.

I was able to reproduce the issue you have described and have logged it in our Public Issue Tracking System - PITS. You can track the progress of the issue subscribe for status change alerts and add your vote/comment to it on the following link - PITS Issue. Until the issue is resolved you can workaround the issue and hide the scrollbar by using the following code:

this.radListView1.ListViewElement.ViewElement.Scroller.Scrollbar.MaxSize = new Size(1, 1);
this.radListView1.ListViewElement.ViewElement.Scroller.Scrollbar.FirstButton.Visibility = Telerik.WinControls.ElementVisibility.Hidden;
this.radListView1.ListViewElement.ViewElement.Scroller.Scrollbar.SecondButton.Visibility = Telerik.WinControls.ElementVisibility.Hidden;
this.radListView1.ListViewElement.ViewElement.Scroller.Scrollbar.ThumbElement.Visibility = Telerik.WinControls.ElementVisibility.Hidden;
this.radListView1.ListViewElement.ViewElement.Scroller.Scrollbar.FillElement.Visibility = Telerik.WinControls.ElementVisibility.Hidden;
this.radListView1.ListViewElement.ViewElement.Scroller.Scrollbar.Children[1].Visibility = Telerik.WinControls.ElementVisibility.Hidden;
this.radListView1.ListViewElement.ViewElement.Scroller.Scrollbar.BorderElement.Visibility = Telerik.WinControls.ElementVisibility.Hidden;

I have also updated your Telerik Points for bringing this issue to our attention.

Should you have further questions, I would be glad to help.

Regards,
Ivan Petrov
Telerik

[Bekir]

Thank you...

[Sherlock]

Hi Telerik !

I did as you explained.
But only vertical scrollbar takes these affects.
I mean just vertical scrollbar will be hidden, and nothing happens to horizontal scrollbar.
Would you please help?

[Ivan Petrov]

Hi Sherlock,

Thank you for writing.

To hide the horizontal scroll bar you have to Apply the same code as the one for the vertical scroll bar:

RadScrollBarElement vScrollbar = radListView1.ListViewElement.ViewElement.Scroller.Scrollbar;
RadScrollBarElement hScrollbar = ((DetailListViewElement)radListView1.ListViewElement.ViewElement).ColumnScroller.Scrollbar;
this.HideScrollBarElements(vScrollbar);
this.HideScrollBarElements(hScrollbar);

private void HideScrollBarElements(RadScrollBarElement scrollbar)
{
    scrollbar.MaxSize = new Size(1, 1);
    scrollbar.FirstButton.Visibility = Telerik.WinControls.ElementVisibility.Hidden;
    scrollbar.FillElement.Visibility = Telerik.WinControls.ElementVisibility.Hidden;
    scrollbar.Children[1].Visibility = Telerik.WinControls.ElementVisibility.Hidden;
    scrollbar.SecondButton.Visibility = Telerik.WinControls.ElementVisibility.Hidden;
    scrollbar.ThumbElement.Visibility = Telerik.WinControls.ElementVisibility.Hidden;
    scrollbar.BorderElement.Visibility = Telerik.WinControls.ElementVisibility.Hidden;
}

I hope this will be useful. Feel free to write back with further questions.

Regards,
Ivan Petrov
Telerik

[Sherlock]

Thanks Telerik
But I don't need to hide everything

I just want to hide left button and right button of horizontal scrollbar
Also I need to remove its thumbnail picture. Or if is it possible, change it with another pic.

Please do a favor and also let me know how to change back color of horizontal scrollbar.




I should add that there isn't "ColumnScroller" after dot !
          radListView1.ListViewElement.ViewElement.ColumnScroller.Scrollbar

Thanks.

[Ivan Petrov]

Hello Sherlock,

Thank you for writing.

The code from my previous post hides all the elements of the scrollbar one by one. If you do not want to hide a certain element you can remove/comment the line of code that hides it. As to the ColumnScroller property you should note that there is a cast before it:

RadScrollBarElement hScrollbar = (DetailListViewElement)radListView1.ListViewElement.ViewElement).ColumnScroller.Scrollbar;

I hope this helps. Feel free to write back with further questions.

Regards,
Ivan Petrov
Telerik

[Sherlock]

I copy/paste the code in C# and visual studio, gives me error on this line.
Would you please write a full code to hide left button of horizotal scrollbar and changing back color of it?
Please write this full code in VB.NET if you don't mind.
Thanks.

[Ivan Petrov]

Hello Sherlock,

Thank you for writing back.

Here is the code in VB.NET:

Dim hScrollbar As RadScrollBarElement = DirectCast(radListView1.ListViewElement.ViewElement, DetailListViewElement).ColumnScroller.Scrollbar

For the BackColor of the scrollbar you can set the following property:

Dim hScrollbar As RadScrollBarElement = InlineAssignHelper(DirectCast(radListView1.ListViewElement.ViewElement, DetailListViewElement).ColumnScroller.Scrollbar.FillElement.BackColor, Color.Red)

I hope this helps.

Regards,
Ivan Petrov
Telerik