The intrinsic ScrollBar displays a scroll thumb that encompasses the entire scroll track when the scroll thumb cannot be moved. When AutoDisable is set to true, the ScrollBar will appear disabled when the thumb cannot be scrolled. This occurs when the Maximum minus the Minimum plus 1 is greater than the LargeChange.
Imports Infragistics.Win Imports Infragistics.Win.UltraWinScrollBar Private Sub InitializeScrollBar() With Me.ultraScrollBar1 ' Note: Under Windows XP if the 'SupportThemes' property ' is left set to True (its default setting) then some of ' the explicit appearance and button style property ' settings are ignored. .SupportThemes = False ' Set the appearance of the scroll bar control ' to use a gradient. .Appearance.BackColor = Color.LightGray .Appearance.BackColor2 = Color.White .Appearance.BackGradientStyle = GradientStyle.HorizontalBump .Appearance.ForeColor = Color.Red ' Specify the appearance of the scroll buttons .ButtonAppearance.BackColor = Color.LightGray .ButtonAppearance.BackGradientStyle = GradientStyle.None .ButtonAppearance.ForeColor = Color.Red ' Specify the appearance of the scroll thumb track area .TrackAppearance.BackColor = Color.Gray ' Specify the appearance of the scroll thumb .ThumbAppearance.BackColor = Color.Silver .ThumbAppearance.BackColor = Color.Silver .ThumbAppearance.BackGradientStyle = GradientStyle.None .ThumbAppearance.BackHatchStyle = BackHatchStyle.Divot ' Specify that the scrollbar will be automatically ' disabled when the Minimum, Maximum and LargeChange ' values don't permit thumb movement. .AutoDisable = True ' Specify that the control will be sized automatically ' based on its 'Orientation'. .AutoSize = True ' Set the button style for the control .ButtonStyle = UIElementButtonStyle.Button3D ' Set the 'Minimum', 'Maximum', 'LargeChange' and ' 'SmallChange' properties. .Minimum = 45 .Maximum = 85 .SmallChange = 1 .LargeChange = 5 ' Note: Instead of setting the individual 4 properties ' above you can call the 'Initialize' method and pass ' the values in as parameters. .Initialize(45, 80, 1, 5) ' Notice, however that the 2nd paramter ('maximumDragValue') ' is not the same value we set the 'Maximum' property above. ' ' The 'Initialize' method takes into account the value ' of the 'largeChange' parameter and adds that into the ' 'Maximum' property. In this example the highest 'Value' ' that can be attained is 80 even though 'Maximum' is ' set to 85. ' Initialize the value property .Value = 45 ' Set the orientation of the control to be vertical. .Orientation = Orientation.Vertical ' Specify that 2 additional buttons will be ' shown, one to go to the minimum value (left/top) ' and one to go to the maximum value (right/bottom). .MinMaxButtonsVisible = True ' Specify where the buttons appear. ' Note: This enumeration has a 'None' option to ' hide the buttons. .ScrollBarArrowStyle = ScrollBarArrowStyle.BothAtLeftTop ' If this property is set to true right clicking ' on the scrollbar will display a context menu ' with various scrolling options. .UseDefaultContextMenu = True End With End Sub
using Infragistics.Win; using Infragistics.Win.UltraWinScrollBar; private void InitializeScrollBar() { UltraScrollBar sbar = this.ultraScrollBar1; // Note: Under Windows XP if the 'SupportThemes' property // is left set to True (its default setting) then some of // the explicit appearance and button style property // settings are ignored. sbar.SupportThemes = false; // Set the appearance of the scroll bar control // to use a gradient. sbar.Appearance.BackColor = Color.LightGray; sbar.Appearance.BackColor2 = Color.White; sbar.Appearance.BackGradientStyle = GradientStyle.HorizontalBump; sbar.Appearance.ForeColor = Color.Red; // Specify the appearance of the scroll buttons sbar.ButtonAppearance.BackColor = Color.LightGray; sbar.ButtonAppearance.BackGradientStyle = GradientStyle.None; sbar.ButtonAppearance.ForeColor = Color.Red; // Specify the appearance of the scroll thumb track area sbar.TrackAppearance.BackColor = Color.Gray; // Specify the appearance of the scroll thumb sbar.ThumbAppearance.BackColor = Color.Silver; sbar.ThumbAppearance.BackColor = Color.Silver; sbar.ThumbAppearance.BackGradientStyle = GradientStyle.None; sbar.ThumbAppearance.BackHatchStyle = BackHatchStyle.Divot; // Specify that the scrollbar will be automatically // disabled when the Minimum, Maximum and LargeChange // values don't permit thumb movement. sbar.AutoDisable = true; // Specify that the control will be sized automatically // based on its 'Orientation'. sbar.AutoSize = true; // Set the button style for the control sbar.ButtonStyle = UIElementButtonStyle.Button3D; // Set the 'Minimum', 'Maximum', 'LargeChange' and // 'SmallChange' properties. sbar.Minimum = 45; sbar.Maximum = 85; sbar.SmallChange = 1; sbar.LargeChange = 5; // Note: Instead of setting the individual 4 properties // above you can call the 'Initialize' method and pass // the values in as parameters. sbar.Initialize(45, 80, 1, 5); // Notice, however that the 2nd paramter ('maximumDragValue') // is not the same value we set the 'Maximum' property above. // // The 'Initialize' method takes into account the value // of the 'largeChange' parameter and adds that into the // 'Maximum' property. In this example the highest 'Value' // that can be attained is 80 even though 'Maximum' is // set to 85. // Initialize the value property sbar.Value = 45; // Set the orientation of the control to be vertical. sbar.Orientation = Orientation.Vertical; // Specify that 2 additional buttons will be // shown, one to go to the minimum value (left/top) // and one to go to the maximum value (right/bottom). sbar.MinMaxButtonsVisible = true; // Specify where the buttons appear. // Note: This enumeration has a 'None' option to // hide the buttons. sbar.ScrollBarArrowStyle = ScrollBarArrowStyle.BothAtLeftTop; // If this property is set to true right clicking // on the scrollbar will display a context menu // with various scrolling options. sbar.UseDefaultContextMenu = true; }
Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2012, Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2