Qtableview add item and reload table

[GeneCode]

I use QStandardItemModel to display data in QTableVIew.
i set already tableview model to the itemmodel

table->setModel(yourMomModel);

table->setModel(yourMomModel);

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then i added the item in model

yourMomModel.append(item2);

yourMomModel.append(item2);

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but the data not showing in QtableView.
anybody know whats wrong thanks.