Question

我正在使用mysql数据库，我正在尝试使用内部联接查询填充gridview，但我无法解决它。这是我的代码。

    Sub loadingaccess4()
    Dim adapter As New OdbcDataAdapter("Select customer.CustomerName,   customer.CustomerID from customer INNER JOIN transaction on customer.CustomerID=transaction.CustomerID", dbconn)
    Dim dataset As New DataSet

    dataset.Clear()
    adapter.Fill(dataset, "")
    Me.GridView4.DataSource = dataset.Tables(0).DefaultView
    Me.GridView4.DataBind()
End Sub

你能帮助我吗？

对不起，伙计们，好的，我要澄清一下。 gridview什么都没有显示。我的代码是错的还是什么？

Answer 1

试试这个：

dim dt as new DataTable();
command.CommandType = CommandType.CommandText
command.CommandText = "Select customer.CustomerName,   customer.CustomerID from customer   INNER JOIN transaction on customer.CustomerID=transaction.CustomerID"
dt.Load(command.ExecuteReader())
Me.GridView4.DataSource = dt
Me.GridView4.DataBind()

Answer 2

这就是我使用的

    Dim conn2 As New SqlConnection("Your Connection string here")
    Dim command As SqlCommand
    Dim SQLReader As SqlDataReader

    conn2.Open()

    command = New SqlCommand("Select customer.CustomerName,   customer.CustomerID from customer   INNER JOIN transaction on customer.CustomerID=transaction.CustomerID", conn2)

    SQLReader = command.ExecuteReader()
    GridView4.DataSource = SQLReader 
    GridView4.DataBind()

然后使用此

将它们绑定到gridview

<asp:Label ID="lable1" runat="server" Text='<%# Bind("CustomerName") %>'></asp:Label>

希望这有帮助！

使用内部联接在gridview中绑定数据

2 个答案: