ZoomingOptions.ZoomInShortcuts Property

Returns the collection of keyboard shortcuts that allow end users to zoom in to the chart.

Namespace: DevExpress.XtraCharts

Assembly: DevExpress.XtraCharts.v24.2.dll

Declaration

C#

public ChartShortcutKeyCollection ZoomInShortcuts { get; }

VB.NET

Public ReadOnly Property ZoomInShortcuts As ChartShortcutKeyCollection

Property Value

Type	Description
ChartShortcutKeyCollection	The shortcut key collection.

Property Paths

You can access this nested property as listed below:

Object Type	Path to ZoomInShortcuts
Diagram3D	.ZoomingOptions .ZoomInShortcuts

Example

This example demonstrates how to change predefined shortcuts and mouse actions that a user can use to zoom in/out the diagram.

Use the following properties to specify the shortcuts:

• ZoomingOptions.ZoomInShortcuts
• ZoomingOptions.ZoomOutShortcuts

The properties below allow you to define the mouse actions:

• ZoomingOptions.ZoomInMouseAction
• ZoomingOptions.ZoomOutMouseAction

C#

using DevExpress.XtraCharts;
using System;
using System.Windows.Forms;
// . . .
private void OnFormLoad(object sender, EventArgs e) {
    XYDiagram xyDiagram = chartControl1.Diagram as XYDiagram;

    // Enable scrolling and zooming for both axes.
    xyDiagram.EnableAxisXZooming = true;
    xyDiagram.EnableAxisYZooming = true;
    xyDiagram.EnableAxisXScrolling = true;
    xyDiagram.EnableAxisYScrolling = true;

    // Click the left mouse button while the Shift key pressed to zoom in to the diagram.
    xyDiagram.ZoomingOptions.ZoomInMouseAction.ModifierKeys = ChartModifierKeys.Shift;
    xyDiagram.ZoomingOptions.ZoomInMouseAction.MouseButton = MouseButtons.Left;

    // Click the left mouse button while the Ctrl key pressed to zoom out of the diagram.
    xyDiagram.ZoomingOptions.ZoomOutMouseAction.ModifierKeys = ChartModifierKeys.Control;
    xyDiagram.ZoomingOptions.ZoomOutMouseAction.MouseButton = MouseButtons.Left;

    // Press Alt + M to zoom in to the diagram.
    xyDiagram.ZoomingOptions.ZoomInShortcuts.Add(Keys.Alt | Keys.M);
    // Press Alt + P to zoom out of the diagram.
    xyDiagram.ZoomingOptions.ZoomOutShortcuts.Add(Keys.Alt | Keys.P);
}

VB.NET

Imports DevExpress.XtraCharts
Imports System
Imports System.Windows.Forms
' . . .
Private Sub OnFormLoad(ByVal sender As Object, ByVal e As EventArgs)
    Dim xyDiagram As XYDiagram = CType(chartControl1.Diagram,XYDiagram)

    ' Enable scrolling and zooming for axes.
    xyDiagram.EnableAxisXZooming = true
    xyDiagram.EnableAxisYZooming = true
    xyDiagram.EnableAxisXScrolling = true
    xyDiagram.EnableAxisYScrolling = true

    ' Click the left mouse button while the Shift key pressed to zoom in to the diagram.
    xyDiagram.ZoomingOptions.ZoomInMouseAction.ModifierKeys = ChartModifierKeys.Shift
    xyDiagram.ZoomingOptions.ZoomInMouseAction.MouseButton = MouseButtons.Left

    ' Click the left mouse button while the Ctrl key pressed to zoom out of the diagram.
    xyDiagram.ZoomingOptions.ZoomOutMouseAction.ModifierKeys = ChartModifierKeys.Control
    xyDiagram.ZoomingOptions.ZoomOutMouseAction.MouseButton = MouseButtons.Left

    ' Press Alt + M to zoom in to the diagram.
    xyDiagram.ZoomingOptions.ZoomInShortcuts.Add((Keys.Alt Or Keys.M))
    ' Press Alt + P to zoom out of the diagram.
    xyDiagram.ZoomingOptions.ZoomOutShortcuts.Add((Keys.Alt Or Keys.P))
End Sub