The Blazor Diagram component is a fast and powerful library for visualizing, creating, and editing interactive diagrams. It supports creating flowcharts, organizational charts, mind maps, and more.
The Blazor Diagram component provides all the standard flowchart shapes as ready-made objects, making it is easy to add them to a diagram surface in a single call.
A built-in automatic layout algorithm is specifically designed for organizational charts to arrange parent and child node positions automatically.
Another built-in automatic layout algorithm is designed for mind map diagrams, allowing users to define which node should be at the center and which nodes should be placed around it in the diagram surface.
Visualize any graphical object using nodes, which can be arranged and manipulated at the same time on a Blazor diagram page. With nodes,
A connector represents a relationship between two nodes. Some of its key features like connector types, bridging, and more are listed below.
The Blazor Diagram component provides straight, orthogonal, polyline, and curved connector types. Choose any of these based on the type of diagram or the relationship between the connected nodes.
Use bridging (line jumps) to illustrate a connector’s route, making it easy to see where connectors overlap each other in a dense diagram.
Use different types of predefined arrowheads to illustrate flow direction in flowchart diagrams. Also build custom arrowheads.
Like nodes, the connector look and feel can also be customized. The Blazor Diagram component provides a rich set of properties to customize connector color, thickness, dash and dot appearance, rounded corners, and even decorators.
Attach connectors to specific places on a node through different types of ports or connecting points.
Additional information can be shown by adding text or labels on nodes and connectors.
Add and edit text at runtime and mark it read-only if it should not be edited.
Add any number of labels and align them individually.
Labels include sophisticated alignment options: place them inside or outside a node, or at the source or target end of a connector. Automatically align labels when a node or connector moves.
Use interactive features to improve the editing experience of a Blazor diagram at runtime. Furthermore, easily edit a Blazor diagram with mouse, touchscreen, or keyboard interfaces.
Select one or more nodes, connectors, or annotations and edit them using thumbs or handlers.
Resize a node in eight different directions and lock a node’s aspect ratios to maintain its shape. Also, resize multiple objects at the same time.
Don’t worry when you edit by mistake—undo and redo commands help to easily correct recent changes.
Cut, copy, paste, or duplicate selected objects within and across Blazor diagrams.
When multiple objects overlap, the z-order controls which object is at the top and which is at the bottom.
Precisely align nodes, connectors, and annotations while dragging them just by snapping to the nearest gridlines or objects.
You can combine multiple nodes into a group and then interact with them as a single object. Nested groups are also possible.
Frequently used commands like delete, connect, and duplicate can be shown as buttons near a selector. This makes it easy for users to quickly perform those operations instead of searching for the correct buttons in a toolbox.
Our Blazor Diagram library has predefined alignment commands that enable you to align selected objects, nodes, and connectors with respect to the selection boundary.
Spacing commands enable you to place selected objects on the diagram at equal intervals from each other.
Use sizing commands to equally size selected nodes with respect to the first selected object.
All the nodes or connectors in the selection list can be aligned at the left, right, or center horizontally, or aligned at the top, bottom, or middle vertically with respect to the selection boundary.
Use automatic layouts to arrange nodes automatically based on a predefined layout algorithm. Features built-in hierarchical tree, organizational tree, and mind map layouts.
Includes a gallery of stencils, reusable symbols, and nodes that can be dragged onto the surface of a Blazor diagram.
Draw all kinds of built-in nodes and connect them with connectors interactively by just clicking and dragging on the drawing area.
View a large diagram closely or assume a wider view by zooming in and out. Also, navigate from one region of a diagram to another by panning across the Blazor diagram.
Populate Blazor diagrams with nodes and connectors created and positioned based on data from data sources. In addition, data in any format can be easily converted, mapped, and consumed in the Blazor diagram by setting a few properties, without having to write any code. The Blazor Diagram library also supports loading data from a list or IEnumerable collection.
You can export a diagram to different image files such as PNG, JPEG, BMP, and SVG.
Print diagrams from the browser. Users can also customize the page size, orientation, and page margin, and fit a diagram to a single page.
Save the Blazor diagram state in JSON format and load it back later for further editing using the serializer.
In addition to all the features listed thus far, there many more that enhance the diagramming experience.
Give a page-like appearance to the drawing surface using page size, orientation, and margins.
Easily get started with Blazor Diagram using a few simple lines of C# code, as demonstrated below. Also explore our Blazor Diagram Example that shows you how to render the Diagram component.
@using Syncfusion.Blazor.Diagram
@using System.Collections.ObjectModel
@using DiagramShapes = Syncfusion.Blazor.Diagram.Shapes
@using DiagramSegments = Syncfusion.Blazor.Diagram.Segments
<SfDiagramComponent Height="600px" Nodes="@NodeCollection" Connectors="@ConnectorCollection" NodeDefaults="@NodeDefaults" ConnectorDefaults="@ConnectorDefaults" ></SfDiagramComponent>
@code
{
int connectorCount = 0;
// Reference to diagram
SfDiagramComponent diagram;
// Define diagram's nodes collection
public DiagramObjectCollection<Node> NodeCollection { get; set; }
// Define diagram's connector collection
public DiagramObjectCollection<Connector> ConnectorCollection { get; set; }
protected override void OnInitialized()
{
InitDiagramModel();
}
private void InitDiagramModel()
{
NodeCollection = new DiagramObjectCollection<Node>();
ConnectorCollection = new DiagramObjectCollection<Connector>();
CreateNode("Start", 50, FlowShapes.Terminator, "Start");
CreateNode("Init", 140, FlowShapes.Process, "var i = 0;'");
CreateNode("Condition", 230, FlowShapes.Decision, "i < 10?");
CreateNode("Print", 320, FlowShapes.PreDefinedProcess, "print(\'Hello!!\');");
CreateNode("Increment", 410, FlowShapes.Process, "i++;");
CreateNode("End", 500, FlowShapes.Terminator, "End");
OrthogonalSegment segment1 = new OrthogonalSegment()
{
Type = DiagramSegments.Orthogonal,
Length = 30,
Direction = Direction.Right
};
OrthogonalSegment segment2 = new OrthogonalSegment()
{
Type = DiagramSegments.Orthogonal,
Length = 300,
Direction = Direction.Bottom
};
OrthogonalSegment segment3 = new OrthogonalSegment()
{
Type = DiagramSegments.Orthogonal,
Length = 30,
Direction = Direction.Left
};
OrthogonalSegment segment4 = new OrthogonalSegment()
{
Type = DiagramSegments.Orthogonal,
Length = 200,
Direction = Direction.Top
};
CreateConnector("Start", "Init");
CreateConnector("Init", "Condition");
CreateConnector("Condition", "Print");
CreateConnector("Condition", "End", "Yes", segment1, segment2);
CreateConnector("Print", "Increment", "No");
CreateConnector("Increment", "Condition", null, segment3, segment4);
}
private void CreateConnector(string sourceId, string targetId, string label = default(string), OrthogonalSegment segment1 = null, OrthogonalSegment segment2 = null)
{
Connector diagramConnector = new Connector()
{
ID = string.Format("connector{0}", ++connectorCount),
SourceID = sourceId,
TargetID = targetId
};
diagramConnector.Type = Segments.Orthogonal;
if (segment1 != null)
{
diagramConnector.Segments = new DiagramObjectCollection<ConnectorSegment>() { segment1, segment2 };
}
if (label != default(string))
{
var annotation = new PathAnnotation()
{
Content = label,
Style = new TextShapeStyle() { Fill = "transparent" }
};
diagramConnector.Annotations = new DiagramObjectCollection<PathAnnotation>() { annotation };
}
ConnectorCollection.Add(diagramConnector);
}
private void NodeDefaults(IDiagramObject obj)
{
Node node = obj as Node;
node.Width = 140;
node.Height = 50;
node.OffsetX = 300;
node.Style = new ShapeStyle() { Fill = "#357BD2", StrokeColor = "white" };
}
private void ConnectorDefaults(IDiagramObject obj)
{
Connector connector = obj as Connector;
connector.Type = DiagramSegments.Orthogonal;
connector.TargetDecorator = new Decorator() { Shape = DecoratorShapes.Arrow, Width = 10, Height = 10 };
}
private void CreateNode(string id, double y, FlowShapes shape, string label, bool positionLabel = false)
{
ShapeAnnotation annotation = new ShapeAnnotation() { Content = label,
Style = new TextShapeStyle()
{
Color = "white",
Fill = "transparent"
}
};
if (positionLabel)
{
annotation.Margin = new Margin() { Left = 25, Right = 25 };
};
Node diagramNode = new Node()
{
ID = id,
OffsetY = y,
Shape = new FlowShape() { Type = Shapes.Flow, Shape = shape },
Annotations = new DiagramObjectCollection<ShapeAnnotation>() { annotation }
};
NodeCollection.Add(diagramNode);
}
}
The Diagram component is also available for JavaScript, Angular, React, and Vue frameworks, built from its own TypeScript libraries. Check out the different Diagram platforms from the following links:
We do not sell the Blazor Diagram component separately. It is only available for purchase as part of the Syncfusion Blazor suite, which contains over 70 native Blazor components, including the Diagram. A single developer license for the Syncfusion Blazor suite costs $995.00 USD, and includes one year of support and updates. On top of this, we might be able to offer additional discounts based on currently active promotions. Please contact our sales team today to see if you qualify for any additional discounts.
You can find our Blazor Diagram demo here.
No. Our 70 Blazor components, including Diagram, are not sold individually. They are only as a single package. However, we have competitively priced the product so it only costs a little bit more than what some other vendors charge for their Diagram alone. We have also found that, in our experience, our customers usually start off using one of our products and then expand to several products quickly, so we felt it was best to offer all 70 Blazor components for a flat fee of $995/developer. On top of this, we might be able to offer additional discounts based on currently active promotions. Please contact our sales team today to see if you qualify for any additional discounts.
No, this is a commercial product and requires a paid license. However, a free community license is also available for companies and individuals whose organizations have less than $1 million USD in annual gross revenue and five or fewer developers.
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