Java GXT编辑器网格不显示任何行

我有一个带有编辑器网格的GXT布局容器。要在网格中显示的数据通过GWT-RPC服务获取，然后添加到网格的存储中。问题是网格从不显示任何内容，但我使用IDE的调试器检查列表是否为空（它包含一个元素）

以下是一些片段：

运输署署长：

public class CompetitionWinnerDTO extends BaseModelData implements IsSerializable {

    public static enum Status implements IsSerializable {
        pending, approved, paid
    }

    public static class Property implements IsSerializable {
        public static final String COMPETITION_ID = "competitionId";
        public static final String COMPETITION_WINNER_ID = "competitionWinnerId";
        public static final String CONFIRM_DATE = "confirmDate";
        public static final String SITE_NAME = "siteName";
        public static final String PRIZE_NAME = "prizeName";
        public static final String PRIZE_VALUE = "prizeValue";
        public static final String PAID_DATE = "paidDate";
        public static final String WINNER_NAME = "winnerName";
        public static final String WINNER_QUOTE = "winnerQuote";
        public static final String WINNER_ADDRESS = "winnerAddress";
        public static final String WINNER_TOWN = "winnerTown";
    }

    private Status status;

    public CompetitionWinnerDTO() {
        setAllowNestedValues(false);
    }

    public int getCompetitionId() {
        return ((Integer) get(Property.COMPETITION_ID)).intValue();
    }

    public void setCompetitionId(int competitionId) {
        set(Property.COMPETITION_WINNER_ID, new Integer(competitionId));
    }

    public int getCompetitionWinnerId() {
        return ((Integer) get(Property.COMPETITION_WINNER_ID)).intValue();
    }

    public void setCompetitionWinnerId(int competitionWinnerId) {
        set(Property.COMPETITION_WINNER_ID, new Integer(competitionWinnerId));
    }

    public Date getConfirmDate() {
        return get(Property.CONFIRM_DATE);
    }

    public void setConfirmDate(Date confirmDate) {
        set(Property.CONFIRM_DATE, confirmDate);
    }

    public Date getPaidDate() {
        return get(Property.PAID_DATE);
    }

    public void setPaidDate(Date paidDate) {
        set(Property.PAID_DATE, paidDate);
    }

    public String getPrizeName() {
        return get(Property.PRIZE_NAME);
    }

    public void setPrizeName(String prizeName) {
        set(Property.PRIZE_NAME, prizeName);
    }

    public int getPriceValue() {
        return ((Integer) get(Property.PRIZE_VALUE)).intValue();
    }

    public void setPrizeValue(int prizeValue) {
        set(Property.PRIZE_VALUE, new Integer(prizeValue));
    }

    public String getSiteName() {
        return get(Property.SITE_NAME);
    }

    public void setSiteName(String siteName) {
        set(Property.SITE_NAME, siteName);
    }

    public Status getStatus() {
        return status;
    }

    public void setStatus(Status status) {
        this.status = status;
    }

    public String getWinnerName() {
        return get(Property.WINNER_NAME);
    }

    public void setWinnerName(String winnerName) {
        set(Property.WINNER_NAME, winnerName);
    }

    public String getWinnerAddress() {
        return get(Property.WINNER_ADDRESS);
    }

    public void setWinnerAddress(String winnerAddress) {
        set(Property.WINNER_ADDRESS, winnerAddress);
    }

    public String getWinnerTown() {
        return get(Property.WINNER_TOWN);
    }

    public void setWinnerTown(String winnerTown) {
        set(Property.WINNER_TOWN, winnerTown);
    }

    public String getWinnerQuote() {
        return get(Property.WINNER_QUOTE);
    }

    public void setWinnerQuote(String winnerQuote) {
        set(Property.WINNER_QUOTE, winnerQuote);
    }

}

在UI中初始化网格：

private final List<ColumnConfig> quoteApprovalConfig = new ArrayList<ColumnConfig>();
ColumnConfig column = new ColumnConfig(CompetitionWinnerDTO.Property.CONFIRM_DATE, "Date Confirmed", 100);

column.setRenderer(TableRenderers.dateTimeRenderer);
quoteApprovalConfig.add(column);

column = new ColumnConfig(CompetitionWinnerDTO.Property.PRIZE_NAME, "Prize", 100);
quoteApprovalConfig.add(column);

column = new ColumnConfig(CompetitionWinnerDTO.Property.WINNER_NAME, "Winner", 100);
        quoteApprovalConfig.add(column);

column = new ColumnConfig(CompetitionWinnerDTO.Property.WINNER_QUOTE, "Quote", 300);
final TextArea text = new TextArea();
text.setAllowBlank(false);
text.setPreventScrollbars(true);
column.setEditor(new CellEditor(text));
quoteApprovalConfig.add(column);

column = new ColumnConfig(CompetitionWinnerDTO.Property.WINNER_QUOTE, "Prize", 75);
column.setRenderer(new TableRenderers.CurrencyRenderer(DEFAULT_CURRENCY_CODE));
quoteApprovalConfig.add(column);

private final ColumnModel quoteApprovalColumns = new ColumnModel(quoteApprovalConfig);
private final EditorGrid<CompetitionWinnerDTO> quoteApprovalGrid = new EditorGrid<CompetitionWinnerDTO>(quoteApprovalStore, quoteApprovalColumns);
quoteApprovalGrid.setWidth(LeadIntelConstants.SITE_WIDTH - 25 - 15);
quoteApprovalGrid.setAutoWidth(true);
quoteApprovalGrid.setAutoHeight(true);
quoteApprovalGrid.setAutoExpandColumn(CompetitionWinnerDTO.Property.WINNER_NAME);
quoteApprovalGrid.setBorders(true);
quoteApprovalGrid.setStripeRows(true);

private final List quoteApprovalConfig=new ArrayList（）；
ColumnConfig column=new ColumnConfig（CompetitionWinnerDTO.Property.CONFIRM_DATE，“DATE CONFIRM”，100）；
setRenderer（TableRenders.dateTimeRenderer）；
quoteApprovalConfig.add（列）；
column=新ColumnConfig（CompetitionWinnerDTO.Property.PRIZE_NAME，“PRIZE”，100）；
quoteApprovalConfig.add（列）；
column=新的ColumnConfig（CompetitionWinnerDTO.Property.WINNER\u NAME，“WINNER”，100）；
quoteApprovalConfig.add（列）；
column=新ColumnConfig（CompetitionWinnerDTO.Property.WINNER_QUOTE，“QUOTE”，300）；
最终文本区域文本=新文本区域（）；
text.setAllowBlank（false）；
text.setPreventScrollbars（true）；
column.setEditor（新的CellEditor（文本））；
quoteApprovalConfig.add（列）；
column=新ColumnConfig（CompetitionWinnerDTO.Property.WINNER_QUOTE，“Prize”，75）；
column.setRenderer（新的TableRenders.CurrencyRenderer（默认货币代码））；
quoteApprovalConfig.add（列）；
私有最终ColumnModel quoteApprovalColumns=新ColumnModel（quoteApprovalConfig）；
私有最终EditorGrid quoteApprovalGrid=新EditorGrid（quoteApprovalStore，quoteApprovalColumns）；
quoteApprovalGrid.setWidth（LeadIntelConstants.SITE_宽度-25-15）；
quoteApprovalGrid.setAutoWidth（真）；
quoteApprovalGrid.setAutoHeight（真）；
quoteApprovalGrid.setAutoExpandColumn（CompetitionWinnerTo.Property.WINNER_NAME）；
quoteApprovalGrid.setBorders（真）；
quoteApprovalGrid.setStripeRows（真）；

以及调用GWT-RPC服务并用结果填充存储的代码：

private void refreshQuoteApproval() {
    competitionService.getCompetitionWinners(
            CompetitionWinnerDTO.Status.pending, new AsyncCallback<List<CompetitionWinnerDTO>>() {
        @Override
        protected void onSuccess(List<CompetitionWinnerDTO> result) {
            setQuoteApprovalWinners(result);
        }
    });
}

private void setQuoteApprovalWinners(List<CompetitionWinnerDTO> quoteApprovalWinners) {
    quoteApprovalStore.removeAll();
    if (quoteApprovalWinners != null) {
        quoteApprovalStore.add(quoteApprovalWinners);
    }
}

private void refreshQuoteApproval（）{
competitionService.getCompetitionWinners(
CompetitionWinnerDTO.Status.pending，新的AsyncCallback（）{
@凌驾
成功时受保护的无效（列表结果）{
setQuoteApprovalWinners（结果）；
}
});
}
私有无效设置quoteApprovalWinners（列出quoteApprovalWinners）{
quoteApprovalStore.removeAll（）；
如果（quoteApprovalWinners！=null）{
添加（quoteApprovalWinners）；
}
}

正如我所说，我可以看到返回的列表不是空的，执行到达

quoteApprovalStore.add（quoteApprovalWinners）没有任何问题，列表包含一个元素

任何帮助都将不胜感激。
对，我发现了问题，有两列具有相同的ID：

这个：

column = new ColumnConfig(CompetitionWinnerDTO.Property.WINNER_QUOTE, "Quote", 300);

还有另一个：

column = new ColumnConfig(CompetitionWinnerDTO.Property.WINNER_QUOTE, "Prize", 75);

只需将后者的id更改为唯一id即可解决问题

附言：如果GXT能就此发出警告那就太好了。对，我发现了问题，有两列的ID相同：

这个：

column = new ColumnConfig(CompetitionWinnerDTO.Property.WINNER_QUOTE, "Quote", 300);

还有另一个：

column = new ColumnConfig(CompetitionWinnerDTO.Property.WINNER_QUOTE, "Prize", 75);

只需将后者的id更改为唯一id即可解决问题

附言：如果GXT能就此发出警告那就太好了