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fix(virtual-scroll): supports null records

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fixes 11093
This commit is contained in:
Manuel Mtz-Almeida
2017-04-24 23:48:23 +02:00
parent 78d427dfcf
commit 67af71bd9b
2 changed files with 4 additions and 4 deletions
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6
src/components/virtual-scroll/virtual-util.ts
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@ -21,7 +21,7 @@ export function processRecords(stopAtHeight: number,
let startRecordIndex: number; let startRecordIndex: number;
let previousCell: VirtualCell; let previousCell: VirtualCell;
let tmpData: any; let tmpData: any;
let lastRecordIndex = (records.length - 1); let lastRecordIndex = records ? (records.length - 1) : -1;
if (cells.length) { if (cells.length) {
// we already have cells // we already have cells
@ -131,11 +131,11 @@ export function populateNodeData(startCellIndex: number, endCellIndex: number, v
cells: VirtualCell[], records: any[], nodes: VirtualNode[], viewContainer: ViewContainerRef, cells: VirtualCell[], records: any[], nodes: VirtualNode[], viewContainer: ViewContainerRef,
itmTmp: TemplateRef<VirtualContext>, hdrTmp: TemplateRef<VirtualContext>, ftrTmp: TemplateRef<VirtualContext>, itmTmp: TemplateRef<VirtualContext>, hdrTmp: TemplateRef<VirtualContext>, ftrTmp: TemplateRef<VirtualContext>,
initialLoad: boolean): boolean { initialLoad: boolean): boolean {
const recordsLength = records.length; if (!records || records.length === 0) {
if (!recordsLength) {
nodes.length = 0; nodes.length = 0;
return true; return true;
} }
const recordsLength = records.length;
let hasChanges = false; let hasChanges = false;
let node: VirtualNode; let node: VirtualNode;