LegendBase.Direction Property

Gets or sets the direction in which items are positioned in the legend.

Namespace: DevExpress.XtraTreeMap

Assembly: DevExpress.XtraTreeMap.v24.2.dll

Declaration

C#

[XtraSerializableProperty]
public LegendDirection Direction { get; set; }

VB.NET

<XtraSerializableProperty>
Public Property Direction As LegendDirection

Property Value

Type	Description
LegendDirection	The direction in which items are positioned in the legend.

Available values:

Name	Description
TopToBottom	Legend items are positioned vertically from the top to the bottom of the legend.
BottomToTop	Legend items are positioned vertically from the bottom to the top of the legend.
LeftToRight	Legend items are positioned horizontally from the left to the right of the legend.
RightToLeft	Legend items are positioned horizontally from the right to the left of the legend.

Example

How to Add a Legend to a Treemap

This example adds a legend to a treemap and configures its title, border, and text settings.

• Create a ColorListLegend object.

• Use the LegendBase.Title property to access the legend title settings. Specify the following title options:

  • Text
  • TextColor
  • DXFont

• Configure the options below to customize the position and alignment of the legend and legend items:

  • TextOffset
  • Direction
  • HorizontalAlignment
  • VerticalAlignment

• The following properties allow you to customize the legend border’s color and width:

  • BorderColor
  • BorderWidth

• Use the treemap’s Legend property to assign the legend to the treemap.

C#

using DevExpress.XtraTreeMap;
using System;
using System.Drawing;
using System.Windows.Forms;
//...
    private void Form1_Load(object sender, EventArgs e) {
        //...

        // Create a legend.
        ColorListLegend legend = new ColorListLegend();

        // Specify the legend title, and the title's color and font.
        legend.Title.Text = "Field of Activity";
        legend.Title.TextColor = Color.Black;
        legend.Title.DXFont = new DXFont("Tahoma", 10);

        // Define the color for legend items.
        legend.TextColor = Color.Black;

        // Set the offset beween an item's marker and text.
        legend.TextOffset = 16;

        // Specify the legend alignment and position.
        legend.Direction = LegendDirection.LeftToRight;
        legend.HorizontalAlignment = LegendHorizontalAlignment.Center;
        legend.VerticalAlignment = LegendVerticalAlignment.BottomOutside;

        // Define whether to arrange items in left-aligned columns.
        legend.EquallySpacedItems = true;

        // Configure the border color and width.
        legend.BorderColor = Color.LightGray;
        legend.BorderWidth = 1;

        // Assign the legend to the treemap.
        treeMapControl1.Legend = legend;
    }

VB.NET

Imports DevExpress.XtraTreeMap
Imports System
Imports System.Drawing
Imports System.Windows.Forms
'...
    Private Sub Form1_Load(ByVal sender As Object, ByVal e As EventArgs)
        '...
        ' Create a legend.
        Dim legend As ColorListLegend = New ColorListLegend()

        ' Specify the legend title, and the title's color and font.
        legend.Title.Text = "Field of Activity"
        legend.Title.TextColor = Color.Black
        legend.Title.DXFont = New DXFont("Tahoma", 10)

        ' Define the color for legend items.
        legend.TextColor = Color.Black

        ' Set the offset beween an item's marker and text.
        legend.TextOffset = 16

        ' Specify the legend alignment and position.
        legend.Direction = LegendDirection.LeftToRight
        legend.HorizontalAlignment = LegendHorizontalAlignment.Center
        legend.VerticalAlignment = LegendVerticalAlignment.BottomOutside

        ' Define whether to arrange items in left-aligned columns.
        legend.EquallySpacedItems = True

        ' Configure the border color and width.
        legend.BorderColor = Color.LightGray
        legend.BorderWidth = 1

        ' Assign the legend to the treemap.
        treeMapControl1.Legend = legend
    End Sub