#1 Scenario: Drag and drop the RadTrackbar to form. Set the Orientation to Vertical. Run the project and you will see that control is not visible public Form1() { InitializeComponent(); this.radTrackBar1.Orientation = Orientation.Vertical; } #2 Scenario: Drag and drop the RadTrackbar to form. Set the Orientation to Vertical. Run the project and you will see that control is cut off private void Form1_Load(object sender, EventArgs e) { this.radTrackBar1.Orientation = Orientation.Vertical; }