获取数据库绑定gridview中的xml文件的值

Question

嗨,我有一个数据库,其中包含一个从主xmlfile中获取的列(课程代码).除了课程代码,数据库还保存了一些其他数据,如开始日期,结束日期等.我需要定期更新这些数据,因此我使用绑定到数据库的gridview.问题是课程名称仅在xml文件中.有没有办法可以链接数据库和xml文件(就像在关系数据库中的表一样)来在gridview中呈现这些数据.我有一个去,但结果页面非常慢,所以我认为它不能这样做.可以这样做吗？

courses.aspx

 <asp:SqlDataSource ID="SqlDataSource1" runat="server" 
    ConnectionString="<%$ myconn %>" 
    SelectCommand="SELECT CourseCode, Data1, Data2, CourseType FROM Courses ORDER BY CourseCode"> 
     </asp:SqlDataSource>

      <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" 
    DataKeyNames="CourseCode" DataSourceID="SqlDataSource1">
    <Columns>
         <asp:TemplateField HeaderText="CourseCode" SortExpression="CourseCode">

            <ItemTemplate>
                <asp:Label ID="Label4" runat="server" Text='<%# Bind("CourseCode") %>'></asp:Label>
            </ItemTemplate>
        </asp:TemplateField>

            <asp:TemplateField HeaderText="Name">
         <ItemTemplate>
         <asp:Label id="lblDate" runat="server"></asp:Label>
         </ItemTemplate>
         </asp:TemplateField>

         restofgridviewhere

        </Columns>
       </asp:GridView>

courses.aspx.vb

       Protected Sub GridView1_RowDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewRowEventArgs) Handles GridView1.RowDataBound
    For i As Integer = 0 To GridView1.Rows.Count - 1
        'create new label with the contents of lblDate 
        Dim labelDate As Label = DirectCast(GridView1.Rows(i).FindControl("lblDate"), Label)
        Dim Label4 As Label = DirectCast(GridView1.Rows(i).FindControl("Label4"), Label)

       For i As Integer = 0 To GridView1.Rows.Count - 1
       Dim labelDate As Label = DirectCast(GridView1.Rows(i).FindControl("lblDate"), Label)
        Dim Label4 As Label = DirectCast(GridView1.Rows(i).FindControl("Label4"), Label)

        Dim ds As New DataSet()
        ds.ReadXml("file.xml")
        Dim xmlDoc As New XmlDataDocument(ds)

        Dim nodeList As XmlNodeList = xmlDoc.DocumentElement.SelectNodes("courses/course[code = '" & Label4.Text & "']")

        Dim myRow As DataRow
        For Each myNode As XmlNode In nodeList
            myRow = xmlDoc.GetRowFromElement(DirectCast(myNode, XmlElement))
            If myRow IsNot Nothing Then
                labelDate.Text = myRow("name")
            End If
        Next
       Next
      End Sub

file.xml

 <courses>
   <course>
      <name>Course name</name> 
      <code>Course code</code> 
   </course>
   <courses>

Answer 1

使用两个数据表，一个用于 sql 源，另一个用于 sql 源，在连接字符串中设置多个活动结果集 (MARS) 属性 true。将网格视图列与相应的数据表单元格绑定

希望这会起作用