Workaround:
Set the styles for the WaitingBarSeparator in Visual Style Builder (you can see how this is set for the other themes).

To Reproduce:

Add a RadDropDownButton on a form, then create a RadMenuItem and a RadTrackBarElement element. Add the trackbar to the children`s collection of the menu item, then add the menu item to the items`s collection of the RadDropDownButton element. Application freezes when you move the drag ball and it gets close to the end of the trackbar.

public partial class Form1 : Form
{
    public Form1()
    {
        InitializeComponent();

        RadTrackBarElement trackBar = new RadTrackBarElement();
        //trackBar.StretchHorizontally = false;

        RadMenuItem menuItemTrackBar = new RadMenuItem();
        menuItemTrackBar.Children.Add(trackBar);
        this.radDropDownButton1.Items.Add(menuItemTrackBar);
    }
}

Workaround:

Set StretchHorizontally property of the trackbar to False.

trackBar.StretchHorizontally = false;

RadTrackBar - the scroll event is throwing when value is changed through code.

Workaround: Use flag to distinct whether the value was changed interactively or programmatically.

ADD. RadTrackBar - add functionality for changing the value of the control with arrow keys

1.Add a UserControl.
2.Drag a TableLayoutPanel from the Toolbox and drop it onto the UserControl. Set its Dock property to Fill.
3.Add 3 columns to the TableLayoutPanel:
	Column1 50%
	Column2 20%
	Column3 30%
4.Add 3 rows to the TableLayoutPanel:
	Row1 Absolute 20
	Row2 Percent 100%
	Row3 Absolute 30
5.Add a RadTrackBar to the second row in the TableLayoutPanel and set its Dock property to Fill. Change the ColumnSpan property to 3.
6.Set the RadTrackBar.AutoSize property to false.
7.Open the designer and resize the user control on a way to make its size very small. As a result Visual Studio hangs.

If you set the Office2010Silver theme to RadProgressBar and set the BackColors of the UpperIndicator through the Edit UI Elements dialog, you will notice that your colors are not shown and you still get the colors defined by the theme. It seems that this behavior is determined by the DrawFill property of the UpperIndicator which is false. This is interesting, because if DrawFill is false, the UpperIndicator should not be visible at all.
This behavior is due to the fact that in Office2010 themes the UpperIndicator fill is ImageShape and not a gradient fill.

Set Maximum and Value of RadTrackBar to 100. When you run the application, the thumb will be at the wrong position.

When RadTrackBar is resized at runtime, the position of the thumb is not changed.

It will be nice if RadTrackBar for WinForms can support multiple sliders similar to RadSlider for Silverlight

RadWaitingBar should be able to move from bottom to top and from right to left.

It will be nice if one can show Text in RadWaitingBar by setting to Text property to some value.

RadProgressBar IndicatorElement1 and IndicatorElement2 have two missing pixels on the top right corner with ControlDefault and Breeze themes.

Workaround:
Set a -1 top margin to both elements - IndicatorElement1 /IndicatorElement2

Fix. RadTrackBar - TrackBarIndicatorElement does not resize correctly, when RadTrackBar is resizing in run time and Maximum value of RadTrackBar is set to 2000. Steps to reproduce: 1. Use this code: this.radTrackBar1.LargeTickFrequency = 200; this.radTrackBar1.SmallTickFrequency = 25; this.radTrackBar1.Maximum = 2000F; 2. Resize the RadTrackBar in run time when thumb is at max value.

RadTrackBarElement - has incorrect behavior when AutoSize property is false. If you set value to be equals to Maximum the thumb will be go out of the TrackBar's rectangle.

Workaround:
Turn off auto size and manually set the desired size of the element. For example:

this.radTrackBarElement1.AutoSize = false;
this.radTrackBarElement1.Size = new System.Drawing.Size(100,20);

To Reproduce:
      Me.RadTrackBar1.Value = 5

When clicking on the progress bar element the Click event is not fired.

Start dragging the thumb with the mouse and note that the thumb at first moves into the opposite direction. After a few pixels the thumb starts moving in the correct direction, however, this makes the thumb appear not under the mouse, but some pixels away.

It will be nice to allow the user set a custom value for mouse click events.

IMPROVE. RadTrackBar should allow setting text to both the control and the scales (1,2,3...)

ADD. RadTrackBar should support negative values