Merge pull request #169 from jennysong/master

fixes edge case: dragging event
StephenChou1017 · Dec 5, 2019 · 7679695 · 7679695
2 parents 08befd8 + 6dfce26
commit 7679695
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/src/DnDContext.js b/src/DnDContext.js
@@ -65,6 +65,9 @@ export default class DnDContext {
                 }
                 const point = monitor.getClientOffset();                
                 let leftIndex = Math.floor((point.x - pos.x)/cellWidth);
+                if(!resourceEvents.headerItems[leftIndex]) {
+                    return;
+                }
                 let newStart = resourceEvents.headerItems[leftIndex].start;
                 let newEnd = resourceEvents.headerItems[leftIndex].end;
                 if(cellUnit !== CellUnits.Hour)
@@ -125,4 +128,4 @@ export default class DnDContext {
     getDndSource = (dndType = DnDTypes.EVENT) => {
         return this.sourceMap.get(dndType);
     }
-}
+}