This is my main window XAML file
<Window x:Class="MindfusionDigramSample.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:local="clr-namespace:MindfusionDigramSample"
xmlns:diag="http://mindfusion.eu/diagramming/wpf"
xmlns:mfc="clr-namespace:MindFusion.UI.Wpf;assembly=MindFusion.Common.Wpf"
mc:Ignorable="d"
Title="MainWindow" Height="350" Width="525">
<Grid >
<Grid.ColumnDefinitions>
<ColumnDefinition Width="200"/>
<ColumnDefinition />
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="500"/>
<RowDefinition />
</Grid.RowDefinitions>
<diag:Ruler x:Name="MindFusionRuler" ShowIcon="False" Grid.Column="1" Grid.Row="0" Grid.RowSpan="2" Grid.ColumnSpan="2" Background="Black" Unit="Inch" Margin="0,0,5,0" FontSize="11">
<diag:Diagram x:Name="flowchart" AllowDrop="True" RotateCursor="Hand" />
</diag:Ruler>
<diag:Overview x:Name="overview" Grid.Column="0" Grid.Row="1" Document="{Binding ElementName=flowchart}"/>
<diag:NodeListView x:Name="shapeList" Grid.Column="0" Grid.Row="0"/>
<mfc:ZoomControl
x:Name="zoomControl"
Target="{Binding ElementName=flowchart}"
ScrollStep="40"
MinZoomFactor="10"
Height="268"
VerticalAlignment="Bottom"
Width="50"
HorizontalAlignment="Left"
Panel.ZIndex="1"
Margin="145,0,0,225" RenderTransformOrigin="0.5,0.5">
<mfc:ZoomControl.RenderTransform>
<TransformGroup>
<ScaleTransform/>
<SkewTransform/>
<RotateTransform Angle="-0.476"/>
<TranslateTransform/>
</TransformGroup>
</mfc:ZoomControl.RenderTransform>
</mfc:ZoomControl>
</Grid>
</Window>
So I added mouse event as followings as you said
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
shapeList.Items.Add(new ShapeNode { Shape = Shapes.Rectangle, EnabledHandles = AdjustmentHandles.All & ~AdjustmentHandles.ResizeHandles, Bounds = new Rect(0, 0, 60, 30)});
}
private void panel1_MouseWheel(object sender, MouseEventArgs e)
{
diag.PreviewMouseWheel += (s, e) =>
{
diagram.SetZoomFactor(
diagram.ZoomFactor + e.Delta / 20,
e.GetPosition(diagram.DocumentPlane));
e.Handled = true;
};
}
}
but its mentioning 'diag' not in current context