Editing

The Diagram provides editing options which enable you to add tools and shapes to it, and use its layout options.

Getting Started

To enable the editing functionality of the Diagram:

1. Configure the DataSource for remote CRUD operations.

   js

    var dataSource = new kendo.data.DataSource({
      transport: {
        read: {
          url: "/DiagramShapes"
        },
        update: {
          url: "/DiagramShapes/Update"
        },
        destroy: {
          url: "/DiagramShapes/Destroy"
        },
        create: {
          url: "/DiagramShapes/Create"
        },
        //...
      }
    });

2. Configure connectionsDataSource for remote CRUD operations. Without setting the ConnectionsDataSource, editing is disabled.

   js

    var connectionsDataSource = new kendo.data.DataSource({
      transport: {
        read: {
          url: "/DiagramConnections"
        },
        update: {
          url: "/DiagramConnections/Update"
        },
        destroy: {
          url: "/DiagramConnections/Destroy"
        },
        create: {
          url: "/DiagramConnections/Create"
        },
        //...
      }
    });

3. Declare the fields definition by using the schema of the DataSource.

   js

    var dataSource = new kendo.data.DataSource({
      //..
      model: {
        id: "id",
        fields: {
    	  // This field will not be editable. The default value is true.
          id: { from: "Id", type: "number", editable: false },
          JobTitle: { type: "string" },
          Color: { type: "string" }
        }
      }
    });

4. Declare fields definition by using the schema of the connectionsDataSource.

   js

    var connectionsDataSource = new kendo.data.DataSource({
    //..
    model: {
    	id: "id",
    	fields: {
    	// This field will not be editable. The default value is true.
    	id: { from: "Id", type: "number", editable: false },
    	from: { from: "FromShapeId", type: "number" },
    	to: { from: "ToShapeId", type: "number" },
    	fromX: { from: "FromPointX", type: "number" },
    	fromY: { from: "FromPointY", type: "number" },
    	toX: { from: "ToPointX", type: "number" },
    	toY: { from: "ToPointY", type: "number" }
    	}
    }
    });

5. Enable the insertion of new record by configuring the toolbar. The createShape is added by default.

   js

    $("#diagram").kendoDiagram({
    dataSource: dataSource,
    connectionsDataSource: connectionsDataSource,
    editable: {
    	tools: ["createShape", "createConnection"]       
    }
    });

6. Enable the deletion of records by adding a delete tool.

   js

    $("#diagram").kendoDiagram({
    dataSource: dataSource,
    connectionsDataSource: connectionsDataSource,
    editable: {
    	tools: ["delete"]       
    }
    });

Model Fields

Shape Model

The shape model provides the following fields:

• id (Number)—A mandatory field. Represents the unique identifier of the shape. A shape without an id field will not be connected.
• type (String)—The shape type.
• text (String)—The shape text.
• x (Number)—The x position of the shape.
• y (Number)—The y position of the shape.
• width (Number)—The shape width.
• height (Number)—The shape height.

Each shape model field gets updated upon user interaction.

The following example demonstrates the DataSource model definition.

js

schema: {
  model: {
	id: "id", // The "id" of the shape is the "id" field. Mandatory.
	fields: {
	  // Describe the shape fields and map them to the fields that are returned by the remote service.
	  id: {
	    // The 'Id' server-side field is mapped to the 'id' client-side field.
	    from: "Id", type: "number"
	  },
	  text: {
	    // The 'Text' server-side field is mapped to the 'text' client-side field.
	    from: "Text", type: "string"
	  },
	  type: {
	    // The 'Type' server-side field is mapped to the 'type' client-side field.
	    from: "Type", type: "string"
	  },
	  x: {
	    // The 'X' server-side field is mapped to the 'x' client-side field.
	    from: "X", type: "number"
	  },
	  y: {
	    // The 'Y' server-side field is mapped to the 'y' client-side field.
	    from: "Y", type: "number"
	  },
	  width: {
	    // The 'Width' server-side field is mapped to the 'width' client-side field.
	    from: "Width", type: "number"
	  },
	  height: {
	    // The 'Height' server-side field is mapped to the 'height' client-side field.
	    from: "Height", type: "number"
	  }
	}
  }
}

Connection Model

The connection model provides the following fields:

• id (Number)—The unique identifier of the connection.
• text (String)—The connection text.
• from (Number)—The connection from shape id.
• to (Number)—The connection to shape id.
• fromX (Number)—The connection from x position. If from is set, this position is not applied.
• fromY (Number)—The connection from y position. If from is set, this position is not applied.
• toX (Number)—The connection to x position. If from is set, this position is not applied.
• toY (Number)—The connection to y position. If from is set, this position is not applied.
• fromConnector (String)—The name of the source shape connector.
• toConnector (String)—The name of the target shape connector.

Each connection model field gets updated upon user interaction.

The following example demonstrates the connectionsDataSource model definition.

js

schema: {
  model: {
	id: "id", // The "id" of the connection is the "id" field.
	fields: {
	  // Describe the connection fields and map them to the fields that are returned by the remote service.
	  id: {
	    // The 'Id' server-side field is mapped to the 'id' client-side field
	    from: "Id", type: "number"
	  },
	  text: {
	    // The 'Text' server-side field is mapped to the 'text' client-side field.
	    from: "Text", type: "string"
	  },
	  from: {
	    // The 'From' server-side field is mapped to the 'from' client-side field.
	    from: "From", type: "number"
	  },
	  fromX: {
	    // The 'FromX' server-side field is mapped to the 'fromX' client-side field.
	    from: "FromX", type: "number"
	  },
	  fromY: {
	    // The 'FromY' server-side field is mapped to the 'fromY' client-side field.
	    from: "FromY", type: "number"
	  },
	  to: {
	    // The 'To' server-side field is mapped to the 'to' client-side field.
	    from: "To", type: "number"
	  },
	  toX: {
	    // The 'ToX' server-side field is mapped to the 'toX' client-side field.
	    from: "ToX", type: "number"
	  },
	  toY: {
	    // The 'ToY' server-side field is mapped to the 'toY' client-side field.
	    from: "ToY", type: "number"
	  },
	  fromConnector: {
	    // The 'FromConnector' server-side field is mapped to the 'fromConnector' client-side field.
	    from: "FromConnector", type: "string"
	  },
	  toConnector: {
	    // The 'ToConnector' server-side field is mapped to the 'toConnector' client-side field.
	    from: "ToConnector", type: "string"
	  }
	}
  }
}

See Also

• Editing in the Diagram (Demo)
• Diagram JavaScript API Reference