嵌套的GridView问题

我想在另一个嵌套一个gridview，但我无法获得数据填充在第二个网格视图。尝试设置第二个数据网格的数据源时（说它为空），出现错误。谁能帮忙？这里是aspx页面：嵌套的GridView问题

<div id="divSource" runat="server" align="center"> 
<asp:GridView ID="Source" runat="server" AutoGenerateColumns="False" DataKeyNames="sourceLineItem" CSSClass="viewSourceGrid" OnRowDataBound="PopulateDateCodes"> 
    <Columns> 
     <asp:TemplateField InsertVisible="False" HeaderStyle-Width="70px"> 
      <ItemTemplate> 
       <asp:Label CssClass="sourceHeader" runat="server" Text= '<%# "Source: " + (Container.DataItemIndex + 1).ToString() %>'> </asp:Label> 
      </ItemTemplate> 
     </asp:TemplateField> 
     <asp:BoundField DataField="nfdBroker" HeaderText="NFD/Broker" InsertVisible="False" ReadOnly="True" SortExpression="nfdBroker" /> 
     <asp:BoundField DataField="locationDescription" HeaderText="Material Location" SortExpression="materialLocation" /> 
     <asp:BoundField DataField="origPkg" HeaderText="Original Packaging?" SortExpression="origPkg" /> 
     <asp:BoundField DataField="oemCC" HeaderText="OEM C of C? " InsertVisible="False" ReadOnly="True" SortExpression="oemCC" /> 
     <asp:BoundField DataField="minBuyQty" HeaderText="Minimum Buy Qty" SortExpression="minBuyQty" /> 
     <asp:BoundField DataField="deliveryInfo" HeaderText="Delivery" SortExpression="delUOM" /> 

     <asp:TemplateField InsertVisible="False" HeaderText="Date Codes" > 
      <ItemTemplate>    
       <asp:GridView ID="DateCodeGrid" runat="server" InsertVisible="False" DataKeyNames="dateCode" CSSClass="viewSourceGrid" > 
        <Columns> 
         <asp:BoundField DataField="dateCode" SortExpression="dateCode"> 
          <ItemStyle Width="20%" /> 
         </asp:BoundField> 
        </Columns> 
       </asp:GridView> 
      </ItemTemplate> 
     </asp:TemplateField> 

    </Columns> 
</asp:GridView>

，然后这里是后面的代码：

public partial class Controls_ViewSource : System.Web.UI.UserControl 
{ 
    //Set the Source Line Item 
    public int SourceLineItem { get; set; } 

    protected void Page_Load(object sender, EventArgs e) 
    { 
     this.SourceLineItem = SourceLineItem; 
     RequestDB db = new RequestDB(); 
     DataSet sources = db.GetSource(int.Parse(Request.QueryString["requestNumber"]), SourceLineItem); 
     Source.DataSource = sources; 
     Source.DataBind(); 

    } 

    protected void PopulateDateCodes(object sender, GridViewRowEventArgs e) 
    { 
     RequestDB db = new RequestDB(); 
     int index = e.Row.RowIndex; 
     GridView gv = (GridView)Source.Rows[0].FindControl("DateCodeGrid"); 
     //int sourceLineItem = int.Parse(Source.DataKeyNames[0].ToString()); 
     //Response.Write(Source.DataKeyNames[0].ToString()); 
     DataSet dateCodes = db.GetDateCodes(71); 
     gv.DataSource = dateCodes; 
     gv.DataBind(); 

    } 
}

来源

2012-01-26 shawleigh17

您可以向我们展示'db.GetDateCodes'的代码吗？我怀疑你没有链接你的嵌套数据 – 2012-01-26 23:42:30

此外，你的GV人口代码很奇怪。它看起来像你没有填充gridview，但只有第一行内的第一个嵌套的gridview？外面的gridview需要先被数据绑定。 – 2012-01-26 23:44:33

你会需要找到正在数据绑定行中的嵌套网格视图：

GridViewRow row = e.Row;

您需要确保您只对数据行执行此操作，而不是页眉或页脚行：

if(row.RowType == DataControlRowType.DataRow) 
{ 
    // Find the nested grid view 
    GridView nested = (GridView)row.FindControl("DateCodeGrid"); 

    // The rest of your code for binding the nested grid view follows here 
}

来源

2012-01-26 23:44:01

太棒了，工作。谢谢！ – shawleigh17 2012-01-27 00:42:35

嵌套的GridView问题

回答

相关问题