How do I set Diagram to ReadOnly state in WinForms Diagram?

How do I set the Diagram to a ReadOnly state, but still retain certain features like Zooming?

Diagram user interactivity is enabled through the interactive Tools registered with the Diagram's Controller. To disable interactivity, you will have to iterate through the list of Tools and selectively enable/disable each tool depending on the functionality that you want to retain. The following code shows how to disable all but the Zoom and Pan tools:

C#

// Get the collection of registered Tools, and disable those that are not required
Syncfusion.Windows.Forms.Diagram.Tool[] tools = this.diagramComponent.Controller.GetAllTools();
foreach (Tool tool in tools)
{
    // Retain the Enabled state for the Zoom and Pan tools
    if ((tool.Name == "ZoomTool") || (tool.Name == "PanTool"))
        continue;
    tool.Enabled = false;
}
this.diagramComponent.AllowDrop = false;

VB

Dim tools As Syncfusion.Windows.Forms.Diagram.Tool() = Me.diagramComponent.Controller.GetAllTools()
Dim tool As tool
For Each tool In tools
' Retain the Enabled state for the Zoom and Pan tools
If Not (tool.Name = "ZoomTool") And Not (tool.Name = "PanTool") Then
tool.Enabled = False
End If
Next
Me.diagramComponent.AllowDrop = False

Conclusion

I hope you enjoyed learning about how to set the Diagram to a ReadOnly state in WinForms Diagram.

You can refer to our  WinForms Diagram feature tour page to know about its other groundbreaking feature representations. You can also explore our WinForms Diagram documentation to understand how to create and manipulate data.

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