Change of collectionview lost when trying to save

Posted by: moritz.neugebauer on 28 July 2020, 5:32 pm EST

  • Posted 28 July 2020, 5:32 pm EST

    Dear Wijmo Team,

    I'm struggling to send data to a server. When editing an item, the change in the collectionview is corretly stored. But when calling a save function, the change in the collectionview is lost.

    Change method called by button click
    * parameter item is an item from the collectionview
    * gridData is the collectionView that is created as a component property
    like so: public gridData: wjcCore.CollectionView = new wjcCore.CollectionView();

    change(item) {
    this.gridData.editItem(; =;
    item.dirty = true;

    console.log("gridData: ", this.gridData); //here everything is fine

    Async function to send data to server

    async save() {
    //here the change is already lost, even the dirty flag is gone
    console.log("gridData: ", this.gridData);

    for (let i = 0; i < this.gridData.items.length; i++) {
    let tmpItem = this.gridData.items[i];

    // even though the dirty flag is gone the code successfully passes the if statement
    if (tmpItem.dirty === true && tmpItem['id']) {
    console.log("tmpItem: ", tmpItem); // the single item that was changed, but the change is lost
    let convertedItem = Utils.convertFromNative2Katalogwert(tmpItem, this.katalogAttributeMap);

    This is kind of strange. It seems like there is a second instance of gridData flying around but I have no idea why.

    Do you have an idea why this might happen?

    Best regards
  • Marked as Answer

    Replied 28 July 2020, 5:47 pm EST

    Dear Wijmo Team,

    feel free to close/delete my post. Everything works as expected! My bad.

    Best regards
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