i am implementing a custom model using a System.Data.DataTable, but get<br>this error:<br><br clear="all">Fatal error: C# instance has been wrongly GC'd for virtual 0xa3fa3f8->QAbstractItemModel::rowCount(const QModelIndex&) const call.<br>
<br>this is the code:<br><br>using System;<br>using Qyoto;<br>namespace qtnet<br>{<br>    <br>    public class TableModelSample<br>    {<br>        <br>        private QTableView view;<br>        private TableModel model;<br>
        public TableModelSample()<br>        {<br>            System.Data.DataTable table = new System.Data.DataTable();<br>            table.Columns.Add("Name");<br>            table.Columns.Add("Age");<br>
            <br>            for(int i=0 ; i<1000; i++){<br>               System.Data.DataRowView drv = table.DefaultView.AddNew();<br>               drv.BeginEdit();<br>               drv["Name"]=String.Format("name for {0} is = ", i );<br>
               drv["Age"] =String.Format("age for {0} is = ", i );<br>               drv.EndEdit();<br>            }<br>            <br>            model= new TableModel(table.DefaultView);<br>            view = new QTableView();<br>
            view.SetModel(model);<br>            view.WindowTitle = "Simple Table Model";<br>            view.Show();<br>        }<br><br>        public static int Main(string[] args){<br>              new QApplication(args);<br>
              new TableModelSample();<br>              return QApplication.Exec();<br>        }<br>    <br>    }<br>    <br>    public class TableModel:QAbstractTableModel{<br>        System.Data.DataView model;<br>        <br>
        public TableModel(System.Data.DataView model, QObject parent) : base(parent){<br>            this.model=model;<br>        }<br>        <br>        public TableModel(System.Data.DataView model):this(model,(QObject)null){<br>
            <br>        }<br>        <br>        <br>        public override int RowCount (QModelIndex parent)<br>        {            <br>            return model.Count; <br>        }<br>        <br>        public override int ColumnCount(QModelIndex parent){<br>
           return this.model.Table.Columns.Count;<br>        }<br><br>        public override QModelIndex Parent(QModelIndex index) {<br>          return new QModelIndex(); <br>         }<br>         <br>         public override QVariant Data(QModelIndex index, int role) {<br>
        if (!index.IsValid())<br>            return new QVariant();<br>        <br>        if (role != (int) Qt.ItemDataRole.DisplayRole)<br>            return new QVariant();<br>                <br>        return new QVariant(model[index.Row()][index.Column()].ToString());<br>
       <br>       }<br>        <br>    }<br>}<br><br><br>what is wrong in my code ?<br><br><br>angel ignacio colmenares laguado<br>