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findObjectUnderMouse eventArg is null

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150081 Dec 19,2019 02:26 PM UTC Dec 20,2019 05:28 AM UTC Angular - EJ 2 1
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Tags: Diagram
Gabo EE
Asked On December 19, 2019 02:26 PM UTC

Hello,
I am experiencing this error when connecting two ports. I have looked into source code and it would be great if ejs library would null check eventArg value


ERROR TypeError: Cannot set property 'actualObject' of null
    at ObjectFinder.findObjectUnderMouse (ej2-diagrams.es2015.js:24520)
    at DiagramEventHandler.findObjectUnderMouse (ej2-diagrams.es2015.js:24045)
    at ComponentBase.findObjectUnderMouse (ej2-diagrams.es2015.js:30780)
    at DiagramEventHandler.mouseMove (ej2-diagrams.es2015.js:23038)
    at ZoneDelegate.invokeTask (zone-evergreen.js:400)
    at Object.onInvokeTask (core.js:39680)
    at ZoneDelegate.invokeTask (zone-evergreen.js:399)
    at Zone.runTask (zone-evergreen.js:168)
    at ZoneTask.invokeTask [as invoke] (zone-evergreen.js:481)
    at invokeTask (zone-evergreen.js:1596)


Problematic source code

  if ((action === 'ConnectorSourceEnd' && source || action === 'PortDraw') ||
                ((canDrawOnce(diagram) || canContinuousDraw(diagram)) && getObjectType(diagram.drawingObject) === Connector)) {
                let connector = diagram.selectedItems.connectors[0];
                for (let i = objects.length - 1; i >= 0; i--) {
                    outPort = getInOutConnectPorts(objects[i], false);
                    if (objects[i] instanceof Node && (canOutConnect(objects[i]) || (canPortOutConnect(outPort)))) {
                        actualTarget = objects[i];
                        if (connector) {
                            actualTarget = this.isTarget(actualTarget, diagram, action);
                        }
                        eventArg.actualObject = actualTarget;
                        return actualTarget;
                    }
                }
            }

Shyam G [Syncfusion]
Replied On December 20, 2019 05:28 AM UTC

Hi Gabo, 

We have checked your issue in our sample and we are unable to replicate an issue at our end. Please share us more details such as exact use case to replicate an issue or modify the below sample. 


Regards, 
Shyam G 


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