使用C＃.net连接多个表并绑定到单个Listview中

Question

我有三张桌子可以加入名为Books，Borrowers和Transactions。 数据库方案如下：

1. 图书（的BookID，BOOKNAME，ISBN）;
2. 借款（BorrowerID，BorrowerName，BorrowerLevel）;
3. 交易（TransactionID的，BorrowerID，的BookID，BorrowDate，ReturnDate）;

相应的类别分别为Book，Borrower和Transaction。现在我想从这三个表中选择BookID，BookName，BorrowerID，BorrowerName，BorrowDate和ReturnDate，并在具有gridview控件的列表视图中显示。 XAML代码：

<Grid>
        <ListView Margin="15,57,58,57" Name="borrowedBookList" IsSynchronizedWithCurrentItem="True" ItemsSource="{Binding }" KeyDown="borrowedBookList_KeyDown">
            <ListView.View>
                <GridView>
                    <GridView.Columns>
                        <GridViewColumn Width="80" Header="Borrower ID" DisplayMemberBinding="{Binding Path=BorrowerID}"/>
                        <GridViewColumn Width="220" Header="Borrower Name" DisplayMemberBinding="{Binding Path=BorrowerName}"/>
                        <GridViewColumn Width="220" Header="Book Name" DisplayMemberBinding="{Binding Path=BookName}"/>
                        <GridViewColumn Width="100" Header="Date" DisplayMemberBinding="{Binding Path=BorrowDate}"/>
                        <GridViewColumn Width="100" Header="Return Date" DisplayMemberBinding="{Binding Path=ReturnDate}"/>
                       </GridView.Columns>
                </GridView>
            </ListView.View>
        </ListView>
    </Grid>

现在我如何加入这些表并将结果datacontext分配给borrowedBookList？

三江源

Arefin Sami

Answer 1

borrowedBookList.DataSource =
    from borrower in Borrowers
    join transaction in Transactions
        on borrower.BorrowerID equals transaction.BorrowerID
    join book in Books
        on transaction.BookID equals book.BookID
    select new
    {
        borrower.BorrowerID,
        borrower.BorrowerName,
        book.BookName,
        transaction.BorrowDate,
        transaction.ReturnDate,
    }

borrowedBookList.DataBind();

Answer 2

你看过hierarchydatatemplate类了吗？

您的模型或视图模型需要包含相应的关系。从那里，适当的datatemplate应该很好地工作。