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ScrollBarVisibility

Summary

Specifies the visibility of a ScrollBar for scrollable content.

Signature

1
public enum ScrollBarVisibility

Namespace

cAlgo.API

Examples

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 using cAlgo.API;
 namespace cAlgo
 {
     // This sample shows how to use the ScrollBarVisibility
     [Indicator(IsOverlay = true, TimeZone = TimeZones.UTC, AccessRights = AccessRights.None)]
     public class ScrollBarVisibilitySample : Indicator
     {
         [Parameter("Horizontal Scroll Bar Visibility", DefaultValue = ScrollBarVisibility.Auto)]
         public ScrollBarVisibility HorizontalScrollBarVisibility { get; set; }
         [Parameter("Vertical Scroll Bar Visibility", DefaultValue = ScrollBarVisibility.Visible)]
         public ScrollBarVisibility VerticalScrollBarVisibility { get; set; }
         protected override void Initialize()
         {
             var scrollViewer = new ScrollViewer
             {
                 HorizontalAlignment = HorizontalAlignment.Center,
                 VerticalAlignment = VerticalAlignment.Center,
                 BackgroundColor = Color.Gold,
                 Opacity = 0.7,
                 HorizontalScrollBarVisibility = HorizontalScrollBarVisibility,
                 VerticalScrollBarVisibility = VerticalScrollBarVisibility,
                 Height = 100
             };
             var grid = new Grid(10, 2)
             {
                 BackgroundColor = Color.Gold,
                 HorizontalAlignment = HorizontalAlignment.Center,
                 VerticalAlignment = VerticalAlignment.Center,
             };
             scrollViewer.Content = grid;
             for (int iRow = 0; iRow < 10; iRow++)
             {
                 grid.AddChild(new TextBlock
                 {
                     Text = "Text",
                     Margin = 5,
                     ForegroundColor = Color.Black,
                     FontWeight = FontWeight.ExtraBold
                 }, iRow, 0);
                 grid.AddChild(new Button
                 {
                     Text = "Button",
                     Margin = 5,
                     ForegroundColor = Color.Black,
                     FontWeight = FontWeight.ExtraBold
                 }, iRow, 1);
             }
             Chart.AddControl(scrollViewer);
         }
         public override void Calculate(int index)
         {
         }
     }
 }
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 import clr
 clr.AddReference("cAlgo.API")
 from cAlgo.API import *
 class Test():
     def get_text_block(self, text):
         textBlock = TextBlock()
         textBlock.Text = text
         textBlock.FontWeight = FontWeight.ExtraBold
         textBlock.ForegroundColor = Color.Black
         textBlock.Margin = Thickness(5)
         return textBlock
     def initialize(self):
         scrollViewer = ScrollViewer()
         scrollViewer.HorizontalAlignment = HorizontalAlignment.Center
         scrollViewer.VerticalAlignment = VerticalAlignment.Center
         scrollViewer.BackgroundColor = Color.Gold
         scrollViewer.Opacity = 0.7
         # HorizontalScrollBarVisibility and VerticalScrollBarVisibility are parameters
         # of type ScrollBarVisibility defined in indicator C# file
         scrollViewer.HorizontalScrollBarVisibility = api.HorizontalScrollBarVisibility
         scrollViewer.VerticalScrollBarVisibility = api.VerticalScrollBarVisibility
         scrollViewer.Height = 100
         grid = Grid(10, 2)
         grid.BackgroundColor = Color.Gold
         grid.HorizontalAlignment = HorizontalAlignment.Center
         grid.VerticalAlignment = VerticalAlignment.Center
         scrollViewer.Content = grid
         for iRow in range(10):
             grid.AddChild(self.get_text_block("Text"), iRow, 0)
             button = Button()
             button.Text = "Button"
             button.Margin = Thickness(5)
             button.ForegroundColor = Color.Black
             button.FontWeight = FontWeight.ExtraBold
             grid.AddChild(button, iRow, 1)
         api.Chart.AddControl(scrollViewer)

See Also

Fields

Disabled

Summary

A ScrollBar does not appear even when the viewport cannot display all of the content.

Signature

1
ScrollBarVisibility.Disabled;

Return Value

ScrollBarVisibility

Auto

Summary

A ScrollBar appears and the dimension of the ScrollViewer is applied to the content when the viewport cannot display all of the content.

Signature

1
ScrollBarVisibility.Auto;

Return Value

ScrollBarVisibility

Hidden

Summary

A ScrollBar does not appear even when the viewport cannot display all of the content. The dimension of the ScrollViewer is not applied to the content.

Signature

1
ScrollBarVisibility.Hidden;

Return Value

ScrollBarVisibility

Visible

Summary

A ScrollBar always appears. The dimension of the ScrollViewer is applied to the content.

Signature

1
ScrollBarVisibility.Visible;

Return Value

ScrollBarVisibility