将数据表绑定到listview wpf mvvm

时间:2014-12-12 11:36:23

标签: wpf listview

我已经尝试了几乎所有在stackoverflow上提供的资源,并且似乎无法让它发挥作用。我是wpf和mvvm的新手,并试图将数据表绑定到listview,下面是我的代码。

//code for viewmodel
public DataTable RetrieveDetails
        {

            get
            {
                DataTable users = new DataTable();
                string dataBaseName = "name.db3";
                using (SQLiteConnection connection = new SQLiteConnection("Data Source=" + dataBaseName + "; Version=3;"))
                {                    
                    var details = "SELECT * FROM users";                    
                    connection.Open();
                    SQLiteCommand cmd = new SQLiteCommand(details, connection);
                    cmd.ExecuteNonQuery();
                    SQLiteDataAdapter adapter = new SQLiteDataAdapter(details, connection);
                    adapter.SelectCommand.CommandTimeout = 120;
                    DataSet ds = new DataSet();
                    adapter.Fill(ds);
                    return ds.Tables[0];

                }
            }

        }

下面是我如何将数据表绑定到列表视图

<ListView x:Name="FormOneView" ItemsSource="{Binding Path=RetrieveDetails}">
                            <ListView.View>
                            <GridView>
                                <GridViewColumn DisplayMemberBinding="{Binding FirstName}" Header="First Name" />
                            </GridView>
                            </ListView.View>
                        </ListView>

我知道这应该很简单,但很难显示数据。

2 个答案:

答案 0 :(得分:5)

尝试这种方法:

<ListView x:Name="FormOneView" ItemsSource="{Binding}" DataContext="{Binding Path=allData}" HorizontalAlignment="Left" Height="100" Margin="243,289,0,0" VerticalAlignment="Top" Width="191">
    <ListView.View>
        <GridView>
            <GridViewColumn Header="Time" Width="50" DisplayMemberBinding="{Binding Path=Tid}"/>
            <GridViewColumn Header="Acceleration" Width="70" DisplayMemberBinding="{Binding Path=Acceleration}"/>
        </GridView>
    </ListView.View>
</ListView>

在这个XAML中我给你一个带有两列的数据表的例子。我正在使用DisplayMemberBinding将ListView列绑定到我的sql表列标题。

您的backgournd代码实际上很好,但您需要使用propertyChangedEventHandler绑定ListView的DataContext。以下是如何进行此类绑定的示例:

在方法中添加以下两行:

adapter.Fill(ds, "users");
allData = ds.Tables["users"].DefaultView; 

然后在您的课程中添加以下方法。您的类应继承INotifyPeropertyChanged (yourClassName:INotifyPeropertyChanged)否则它将无法正常工作。

private DataView _allData;
public DataView allData
{
    get { return _allData; }
    set
    {
        if (value != _allData)
        {
            _allData = value;
            OnPropertyChanged("allData");
        }
    }
}

public event PropertyChangedEventHandler PropertyChanged;
protected virtual void OnPropertyChanged(string propName)
{
    if (PropertyChanged != null)
    {
        PropertyChanged(this, new PropertyChangedEventArgs(propName));
    }
}

结果:

enter image description here

答案 1 :(得分:0)

为了使上面的代码起作用,需要添加以下代码行 listview.datacontext =包含alldata.allData的类