Question

我有一个数据网格，用户可以在其中输入一些数据。一旦他们输入了数据，他们就会点击一个按钮来上传数据。但是，我遇到了一些问题，数据没有像我预期的那样具有约束力。

datagrid绑定到一个名为HldLogEQ的列表，类型为ObservableCollection HoldingLogEQ。

当我在上传数据之前进行调试时，ISIN和Sedol属性都为null，这是不正确的。我认为下面的行是绑定数据的正确方法？我错过了什么？

<DataGridTextColumn Header="Sedol" IsReadOnly="False" Binding="{Binding Security.Sedol, Mode=TwoWay}"/>

HoldingLoq Class

 public class HoldingLogEQ : INotifyPropertyChanged
    {           
        public DateTime DateEffective
        {
            get
            {
                return _dateEffective;
            }
            set
            {
                _dateEffective = value;
                OnPropertyChanged("DateEffective");
            }
        }
        public SecruityID Security
        {
            get
            {
                return _security;
            }
            set
            {
                _security = value;
                OnPropertyChanged("Security");
            }
        }           
        public List<Fund> Funds
        {
            get
            {
                return _funds;
            }
            set
            {
                _funds = value;
                OnPropertyChanged("Funds");
            }
        }

        private DateTime _dateEffective;
        private SecruityID _security = new SecruityDescriptive();
        private List<Fund> _funds;

        public event PropertyChangedEventHandler PropertyChanged;

        void OnPropertyChanged(string propertyName)
        {
            if (PropertyChanged != null)
                PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
        }
    }

安全ID类

public class SecurityID : INotifyPropertyChanged
    {
        public string ISIN
        {
            get
            {
                return _isin;
            }
            set
            {
                _isin = value;
                OnPropertyChanged("ISIN");
            }
        }
        public string Sedol
        {
            get
            {
                return _sedol;
            }
            set
            {
                _sedol = value;
                OnPropertyChanged("Sedol");
            }
        }

        public event PropertyChangedEventHandler PropertyChanged;

        protected void OnPropertyChanged(string propertyName)
        {
            if (PropertyChanged != null)
                PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
        }

        private string _isin;
        private string _sedol;
        #endregion
    }

的Datagrid

<DataGrid Grid.Row="1"
                              x:Name="dgHldRGHTS" 
                          ItemsSource="{Binding HldLogEQ, UpdateSourceTrigger=PropertyChanged}"
                          Style="{StaticResource DataGridTemplate1}"
                          ColumnHeaderStyle="{StaticResource DG_ColumnHeaderCenter1}"                                            
                          RowStyle="{StaticResource DG_Row1}"
                          CellStyle="{StaticResource DG_Cell1}"                                    
                          RowHeaderStyle="{StaticResource DG_RowHeader1}"
                          RowDetailsTemplate="{StaticResource DG_RowDetail}" 
                          AutoGenerateColumns="False"
                          HorizontalAlignment="Stretch"                           
                          Background="Silver" 
                          Margin="50,0,50,50"                              
                          CanUserDeleteRows="True"
                          CanUserAddRows="True"
                          RowHeaderWidth="30">
                        <DataGrid.Columns>
                            <DataGridTextColumn Header="Date Effective" IsReadOnly="False" Binding="{Binding DateEffective, StringFormat={}\{0:dd-MMM-yy\}, Mode=TwoWay}" MinWidth="75"/>
                            <DataGridTextColumn Header="ISIN" IsReadOnly="False" Binding="{Binding Security.ISIN, Mode=TwoWay}" MinWidth="75"/>
                            <DataGridTextColumn Header="Sedol" IsReadOnly="False" Binding="{Binding Security.Sedol, Mode=TwoWay}" MinWidth="75"/>
                            <DataGridTextColumn Header="Name" IsReadOnly="False" Binding="{Binding Security.Name, Mode=TwoWay}" MinWidth="200"/>
                        </DataGrid.Columns>
                    </DataGrid>

Answer 1

可能需要添加路径。

Binding="{Binding Path=Security.Sedol, Mode=TwoWay}"

datagrid绑定到不起作用的属性

1 个答案: