Hi nag battu,
As the slider control is not actually a styled scrollbar but a control, in case there is a case, when you want the slider to appear disabled or not to show at all, you will have to disable/hide it manually. In case you want to disable the slider control, simply set its Enabled property to "false". If you want to hide the slider, when you have only one item, you can set the Visible property of the slider to "false".
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