ASP.NET GridView内部中继器控制

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我有一个位于Repeater控件内的GridView。填充Gridview的数据是动态的，并按SectionID分组。我需要为每个重复的GridView列出根据其SectionID分组的数据行。

我该怎么做？

谢谢。

这是我到目前为止有：

Public Sub GrabRepeaterData() 
    Dim connstr As String = ConfigurationManager.ConnectionStrings("MyString").ToString() 
    Dim ss As New SqlConnection(connstr) 
    Dim sqlStr As String = "SELECT SectionID, Name FROM Table1" 
    Dim selectCMD As New SqlClient.SqlCommand(sqlStr, ss) 
    Dim dt As New DataTable 
    Dim ds As New DataSet 
    Dim dataAdapter As SqlClient.SqlDataAdapter = New SqlClient.SqlDataAdapter 
    dataAdapter.SelectCommand = selectCMD 
    dataAdapter.Fill(dt) 
    selectCMD.Dispose() 
    dataAdapter.Dispose() 
    ss.Close() 
    ss.Dispose() 

    dt.Columns.Add("Column1") 
    dt.Columns.Add("Column2") 
    dt.Columns.Add("Column3") 
    dt.Columns.Add("Column4") 
    dt.Columns.Add("Column5") 
    dt.Columns.Add("Column6") 
    dt.Columns.Add("Column7") 
    dt.Columns.Add("Column8") 

    For Each row As DataRow In dt.Rows 
     Dim SectionID As String = "" 
     SectionID = row("SectionID") 

     Dim Column1 As String = "" 
     Dim Column2 As String = "" 
     Dim Column3 As Boolean 
     Dim Column4 As String = "" 
     Dim Column5 As String = "" 
     Dim Column6 As String = "" 
     Dim Column7 As Boolean 
     Dim Column8 As Boolean 
     Dim ProgConn As String = "" 
     ProgConn = ConfigurationManager.ConnectionStrings("MyString").ToString() 
     Dim ProgSqlQuery As New SqlConnection(ProgConn) 
     Dim ProgResults As New SqlCommand("SELECT [Column1], [Column2], [Column3], [Column4], [Column5], [Column6], [Column7], [Column8] FROM Table2 WHERE SectionID = @SectionID ORDER BY Column4 DESC", ProgSqlQuery) 
     ProgResults.Parameters.AddWithValue("@SectionID", SectionID).Value = SectionID 
     ProgSqlQuery.Open() 
     Dim rProg As SqlDataReader = ProgResults.ExecuteReader() 
     While rProg.Read() 
      If Not rProg("Column1").Equals(DBNull.Value) Then 
       Column1 = CStr(rProg("Column1")) 
      End If 
      If Not rProg("Column2").Equals(DBNull.Value) Then 
       Column2 = CStr(rProg("Column2")) 
      End If 
      If Not rProg("Column3").Equals(DBNull.Value) Then 
       Column3 = CStr(rProg("Column3")) 
      End If 
      If Not rProg("Column4").Equals(DBNull.Value) Then 
       Column4 = CStr(rProg("Column4")) 
      End If 
      If Not rProg("Column5").Equals(DBNull.Value) Then 
       Column5 = CStr(rProg("Column5")) 
      End If 
      If Not rProg("Column6").Equals(DBNull.Value) Then 
       Column6 = CStr(rProg("Column6")) 
      End If 
      If Not rProg("Column7").Equals(DBNull.Value) Then 
       Column7 = CStr(rProg("Column7")) 
      End If 
      If Not rProg("Column8").Equals(DBNull.Value) Then 
       Column8 = CStr(rProg("Column8")) 
      End If 
     End While 
     rProg.Close() 
     ProgResults.Dispose() 
     ProgSqlQuery.Close() 
     ProgSqlQuery.Dispose() 

     row("Column1") = Column1 
     row("Column2") = Column2 
     row("Column3") = Column3 
     row("Column4") = Column4 
     row("Column5") = Column5 
     row("Column6") = Column6 
     row("Column7") = Column7 
     row("Column8") = Column8 

     row.EndEdit() 
     dt.AcceptChanges() 
    Next 


    CustomInfoRepeater.DataSource = dt 
    CustomInfoRepeater.DataBind() 


End Sub 

Protected Sub CustomInfoRepeater_ItemDataBound(sender As Object, e As System.Web.UI.WebControls.RepeaterItemEventArgs) Handles CustomInfoRepeater.ItemDataBound 
    If e.Item.ItemType = ListItemType.Item Then 
     Try 

      Dim grdVw As GridView = TryCast(e.Item.FindControl("CustomInfoGridView"), GridView) 
      grdVw.DataSource = DirectCast(e.Item.DataItem, DataTable).Rows 
      grdVw.DataBind() 
      Dim CustPanel As UpdatePanel = DirectCast(CustomInfoRepeater.Items(0).FindControl("CustomInfoPanel"), UpdatePanel) 
      CustPanel.Update() 

     Catch 
     End Try 
    End If 
End Sub

这里是我的HTML：

<asp:Repeater ID="CustomInfoRepeater" runat="server"> 
    <ItemTemplate> 
     <div class="download-box3">    

       </h2> 
      <asp:UpdatePanel ID="CustomInfoPanel" runat="server" UpdateMode="Conditional"> 
       <Triggers> 
        <asp:PostBackTrigger ControlID="CustomInfoGridView" /> 
       </Triggers> 
       <ContentTemplate> 
        <asp:GridView ID="CustomInfoGridView" runat="server" Width="100%" AutoGenerateColumns="False" 
         DataKeyNames="Column1" GridLines="None" RowStyle-Height="40px" EnableViewState="False" 
         CellPadding="4" ForeColor="#333333" RowStyle-VerticalAlign="Middle"> 
         <Columns> 
          <asp:BoundField DataField="Column1" /> 
          <asp:TemplateField ItemStyle-Width="35px" ItemStyle-HorizontalAlign="Center" ItemStyle-VerticalAlign="Middle"> 
           <ItemTemplate> 
            <asp:ImageButton ID="newIcon" runat="server" Width="31px" CssClass="myGridImage" 
             Visible="false" ImageUrl="images/new.png" /> 
           </ItemTemplate> 
           <ItemStyle HorizontalAlign="Center" VerticalAlign="Middle" Width="35px" /> 
          </asp:TemplateField> 
          <asp:TemplateField ItemStyle-Width="30px" ItemStyle-HorizontalAlign="Center" ItemStyle-VerticalAlign="Middle"> 
           <ItemTemplate> 
            <asp:ImageButton ID="DeleteButton" runat="server" AlternateText="Delete" ImageUrl="images/xmark.png" 
             OnClientClick="return confirm('Are you sure you want to delete this entry?')" 
             CommandArgument='<%# Eval("Column1") %>' CommandName="Remove" CssClass="myGridImage"> 
            </asp:ImageButton> 
           </ItemTemplate> 
           <ItemStyle HorizontalAlign="Center" VerticalAlign="Middle" Width="30px" /> 
          </asp:TemplateField> 
          <asp:TemplateField ItemStyle-Width="50px" ItemStyle-HorizontalAlign="Center" ItemStyle-VerticalAlign="Middle"> 
           <ItemTemplate> 
            <asp:LinkButton ID="GenComUpdateButton" runat="server" CssClass="buttonsmall" Text="update" 
             CommandArgument='<%# Eval("Column1") %>' CommandName="GenComments"></asp:LinkButton> 
           </ItemTemplate> 
           <ItemStyle HorizontalAlign="Center" VerticalAlign="Middle" Width="50px" /> 
          </asp:TemplateField> 
          <asp:TemplateField HeaderText="Impact" HeaderStyle-HorizontalAlign="Center" ItemStyle-Width="30px" 
           ItemStyle-HorizontalAlign="Center" ItemStyle-VerticalAlign="Middle"> 
           <ItemTemplate> 
            <asp:Image ID="statusIcon" runat="server" Width="20px" CssClass="myGridImage" Visible="false" 
             ImageUrl="" AlternateText="*" /> 
           </ItemTemplate> 
           <HeaderStyle HorizontalAlign="Center"></HeaderStyle> 
           <ItemStyle HorizontalAlign="Center" VerticalAlign="Middle" Width="50px" /> 
          </asp:TemplateField> 
          <asp:TemplateField ItemStyle-Width="50px" HeaderText="Files" ItemStyle-HorizontalAlign="Center" 
           ItemStyle-VerticalAlign="Middle"> 
           <ItemTemplate> 
            <asp:ImageButton ID="filesIcon" runat="server" Width="23px" CssClass="myGridImage" 
             CommandArgument='<%# Eval("Column3") %>' CommandName="Download" Visible="false" 
             ImageUrl="images/pdf.png" AlternateText="*" /> 
            <asp:LinkButton ID="AttachAssetsBtn" runat="server" CssClass="buttonredsmall" Text="upload" 
             CommandArgument='<%# Eval("Column1") %>' CommandName="Uploads" Visible="false"></asp:LinkButton> 
           </ItemTemplate> 
           <ItemStyle HorizontalAlign="Center" VerticalAlign="Middle" Width="50px" /> 
          </asp:TemplateField> 
          <asp:BoundField DataField="Column3" HeaderText="Summary" HeaderStyle-HorizontalAlign="Center" 
           ItemStyle-VerticalAlign="Middle"> 
           <HeaderStyle HorizontalAlign="Center"></HeaderStyle> 
           <ItemStyle VerticalAlign="Middle" HorizontalAlign="Left" /> 
          </asp:BoundField> 
          <asp:TemplateField ItemStyle-Width="50px" HeaderText="Reviewed" ItemStyle-HorizontalAlign="Center" 
           ItemStyle-VerticalAlign="Middle"> 
           <ItemTemplate> 
            <asp:Image ID="reviewedIcon" runat="server" Width="23px" CssClass="myGridImage" Visible="false" 
             ImageUrl="images/checkmark.png" AlternateText="*" /> 
            <asp:CheckBox ID="reviewedCheckBox" runat="server" CssClass="inputtext" Visible="false" 
             AutoPostBack="true" OnCheckedChanged="GenComCheckUpdate" /> 
           </ItemTemplate> 
           <ItemStyle HorizontalAlign="Center" VerticalAlign="Middle" Width="50px" /> 
          </asp:TemplateField> 
          <asp:BoundField DataField="Column4" HeaderText="Updated" HeaderStyle-HorizontalAlign="Center" 
           ItemStyle-VerticalAlign="Middle" ItemStyle-Width="75px"> 
           <ItemStyle VerticalAlign="Middle" HorizontalAlign="Center" /> 
          </asp:BoundField> 
          <asp:BoundField DataField="Column6" Visible="false" /> 
          <asp:BoundField DataField="Column7" Visible="false" /> 
         </Columns> 
         <EmptyDataTemplate> 
          <span class="data-none">No Comments have been added to this section.</span> 
         </EmptyDataTemplate> 
         <RowStyle CssClass="RowStyle" BackColor="#F7F6F3" ForeColor="#333333" /> 
         <EmptyDataRowStyle CssClass="EmptyRowStyle" /> 
         <PagerStyle CssClass="PagerStyle" BackColor="#284775" ForeColor="White" HorizontalAlign="Center" /> 
         <SelectedRowStyle CssClass="SelectedRowStyle" BackColor="#E2DED6" Font-Bold="True" 
          ForeColor="#333333" /> 
         <HeaderStyle CssClass="HeaderStyle" BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" /> 
         <EditRowStyle CssClass="EditRowStyle" BackColor="#999999" /> 
         <AlternatingRowStyle CssClass="AltRowStyle" BackColor="White" ForeColor="#284775" /> 
         <SortedAscendingCellStyle BackColor="#E9E7E2" /> 
         <SortedAscendingHeaderStyle BackColor="#506C8C" /> 
         <SortedDescendingCellStyle BackColor="#FFFDF8" /> 
         <SortedDescendingHeaderStyle BackColor="#6F8DAE" /> 
        </asp:GridView> 
       </ContentTemplate> 
      </asp:UpdatePanel> 
     </div> 
    </ItemTemplate> 
    <SeparatorTemplate> 
     <hr /> 
    </SeparatorTemplate> 
</asp:Repeater>

感谢您的帮助！

来源

2014-02-10 user3293748

您可以在ItemDataBound事件中使用DataRowView将所有来自sql查询的数据作为表格获取。像（DataRowView）drv =（DataRowView）e.Item.DataItem; int sectionId = drv [“SectionID”]; – Kadir

我从代码中了解到，您正在将两个数据源合并为一个。然后将其绑定到Repeater，然后从中继器DataItem中获取GV的数据源并将其绑定到GridView。

我有什么建议是保持数据源分离，做到在两个步骤：

1：绑定中继器通过SELECT SectionID，名字从表1

2退换只是SectionID即数据显示： Repeater ItemDataBound，获取SectionID并通过ProgResults中的查询获取数据。然后将其绑定到GV。

来源

2014-02-10 20:45:40 gbs

我完全同意gbs。这里是你如何能做到这一点：

在标记，添加一个隐藏字段内转发，在UpdatePanel之外：

<asp:Repeater ID="CustomInfoRepeater" runat="server"> 
    <ItemTemplate> 
     <asp:HiddenField ID="hdnSectionID" Value='<%# Eval("SectionID")%>' runat="server" /> 
     <asp:Label ID="lblName" Text='<%# Eval("Name")%>' runat="server"></asp:Label> 
     <div class="download-box3"> 
      </h2> 
<asp:UpdatePanel ID="CustomInfoPanel" runat="server" UpdateMode="Conditional"> 
<%-- Rest of the markup goes here --%>

只改写GrabRepeaterData()子来填充转发：

Public Sub GrabRepeaterData() 
    Dim connstr As String = ConfigurationManager.ConnectionStrings("MyString").ToString() 
    Dim dt As New DataTable 

    Using conn As SqlConnection = New SqlConnection(connstr) 
     conn.Open() 
     Dim sqlStr As String = "SELECT SectionID, Name FROM Table1" 
     Dim cmd As New SqlClient.SqlCommand(sqlStr, conn) 
     Dim adapter As SqlClient.SqlDataAdapter = New SqlClient.SqlDataAdapter 
     adapter.SelectCommand = cmd 
     adapter.Fill(dt) 
    End Using 

    CustomInfoRepeater.DataSource = dt 
    CustomInfoRepeater.DataBind() 

End Sub

在中继器的ItemDataBound，找到HiddenField，找到它的值，在UpdatePanel里面找到GridView，这样填充它：

Protected Sub CustomInfoRepeater_ItemDataBound(sender As Object, e As System.Web.UI.WebControls.RepeaterItemEventArgs) Handles CustomInfoRepeater.ItemDataBound 
    If e.Item.ItemType = ListItemType.Item Then 
     Dim sectionID As Integer = 0 
     Dim hdnSectionID = TryCast(e.Item.FindControl("hdnSectionID"), HiddenField) 
     Dim CustomInfoPanel = TryCast(e.Item.FindControl("CustomInfoPanel"), UpdatePanel) 

     If (CustomInfoPanel IsNot Nothing AndAlso hdnSectionID IsNot Nothing AndAlso Integer.TryParse(hdnSectionID.Value, sectionID)) Then 

      Dim CustomInfoGridView = TryCast(CustomInfoPanel.FindControl("CustomInfoGridView"), GridView) 

      If (CustomInfoGridView IsNot Nothing) Then 
       Dim connstr As String = ConfigurationManager.ConnectionStrings("MyString").ToString() 
       Dim dt As New DataTable 

       Using conn As SqlConnection = New SqlConnection(connstr) 
        conn.Open() 
        Dim cmd As New SqlCommand("SELECT [Column1], [Column2], [Column3], [Column4], [Column5], [Column6], [Column7], [Column8] FROM Table2 WHERE SectionID = @SectionID ORDER BY Column4 DESC", conn) 
        cmd.Parameters.AddWithValue("@SectionID", sectionID) 
        Dim adapter As SqlClient.SqlDataAdapter = New SqlClient.SqlDataAdapter 
        adapter.SelectCommand = cmd 
        adapter.Fill(dt) 
       End Using 
       CustomInfoGridView.DataSource = dt 
       CustomInfoGridView.DataBind() 
      End If 

     End If 
    End If 
End Sub

来源

2014-02-11 04:52:14 afzalulh

ASP.NET GridView内部中继器控制

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