C# 内部网格未在嵌套的gridview中显示数据

我尝试了我在谷歌搜索的每一件事，iam发布的代码来自谷歌。 我的问题是，当我单击菜单按钮时，内部网格显示为空白。

---

（即使还有我的代码）。有人能说我哪里出错了吗。

更改了div.style.display=“inline”；至div.style.display=“block”

 protected void Page_Load(object sender, EventArgs e)
{
    if (!IsPostBack)
    {
        FillHatcheryGridDetails();

    }

}

public void FillHatcheryGridDetails()
{
    DataTable dthatcherygrid = new DataTable();
    dthatcherygrid = objhatcheryBAL.GetChickGridsdet();
    gvParentGrid.DataSource = dthatcherygrid;
    gvParentGrid.DataBind();
}

 protected void gvUserInfo_RowDataBound(object sender, GridViewRowEventArgs e)
{
    if (e.Row.RowType == DataControlRowType.DataRow)
    {
        GridView GridView2 = (GridView)e.Row.FindControl("gvChildGrid");
        int hatchid = Convert.ToInt16(e.Row.Cells[1].Text);
        DataTable dtRegions = new DataTable();
        objhatcheryPL.hatchid = hatchid;
        dtRegions = objhatcheryBAL.GetHatchidDetaisl(objhatcheryPL);
        GridView2.DataSource = dtRegions;
        GridView2.DataBind();
    }
}

函数divexpandcollapse（divname）{
var div=document.getElementById（divname）；
var img=document.getElementById（'img'+divname）；
如果（div.style.display==“无”）{
div.style.display=“块”；
img.src=“../kjl_images/closed.gif”；
}否则{
div.style.display=“无”；
img.src=“../kjl_images/open.gif”；
}
}

我不得不从

div.style.display=“inline”更改至
div.style.display=“内联表格”
由于div没有使用
divexpandcollapse
函数保持宽度值，标题是否显示在内部网格上？@KarlAnderson否，但数据正在进入数据源，将
div.style.display从
inline
更改为
block
，然后是否显示？@KarlAnderson。谢谢你。谢谢你的努力。@KarlAnderson即使去掉它也能工作style=“display:none；我能知道到底发生了什么吗
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1"
runat="Server">
<div>
 <asp:GridView ID="gvParentGrid" runat="server" DataKeyNames="hatchid"
Width="300"AutoGenerateColumns="false"
OnRowDataBound="gvUserInfo_RowDataBound"  GridLines="None"
BorderStyle="Solid" BorderWidth="1px" BorderColor="#df5015">           
<Columns>
<asp:TemplateField ItemStyle-Width="20px">
<ItemTemplate>
<a href="JavaScript:divexpandcollapse('div<%# Eval("hatchid") %>');">
<img id="imgdiv<%# Eval("hatchid") %>" width="9px" border="0" 
 src="../kjl_images/closed.gif"  alt="" />
 </a>
 </ItemTemplate>
</asp:TemplateField>
 <asp:BoundField DataField="hatchid" HeaderText="Hatch ID" />
 <asp:BoundField DataField="hatcheryname" HeaderText="Hatchery Name" />                
  <asp:TemplateField>
    <ItemTemplate>
       <tr>
         <td colspan="100%">
 <div id="div<%# Eval("hatchid") %>" style="display: none;
position: relative; left:  15px;   overflow: auto">
asp:GridView ID="gvChildGrid" runat="server"
AutoGenerateColumns="false" BorderStyle="Double"   
BorderColor="#df5015" GridLines="None" Width="250px">                                        
<Columns>
 <asp:BoundField DataField="hatchid" HeaderText="Region"/>                                            
<asp:BoundField DataField="name" HeaderText="Name"/>
   </Columns>
     </asp:GridView>
        </div>
            </td>
               </tr>
                </ItemTemplate>
            </asp:TemplateField>
        </Columns>
    </asp:GridView>
</div>

 protected void Page_Load(object sender, EventArgs e)
{
    if (!IsPostBack)
    {
        FillHatcheryGridDetails();

    }

}

public void FillHatcheryGridDetails()
{
    DataTable dthatcherygrid = new DataTable();
    dthatcherygrid = objhatcheryBAL.GetChickGridsdet();
    gvParentGrid.DataSource = dthatcherygrid;
    gvParentGrid.DataBind();
}

 protected void gvUserInfo_RowDataBound(object sender, GridViewRowEventArgs e)
{
    if (e.Row.RowType == DataControlRowType.DataRow)
    {
        GridView GridView2 = (GridView)e.Row.FindControl("gvChildGrid");
        int hatchid = Convert.ToInt16(e.Row.Cells[1].Text);
        DataTable dtRegions = new DataTable();
        objhatcheryPL.hatchid = hatchid;
        dtRegions = objhatcheryBAL.GetHatchidDetaisl(objhatcheryPL);
        GridView2.DataSource = dtRegions;
        GridView2.DataBind();
    }
}

<asp:Content ID="Content1" ContentPlaceHolderID="head" runat="Server">

<script type="text/javascript" language="javascript">

function divexpandcollapse(divname) {
    var div = document.getElementById(divname);
    var img = document.getElementById('img' + divname);
    if (div.style.display == "none") {
        div.style.display = "block";
        img.src = "../kjl_images/closed.gif";
    } else {
        div.style.display = "none";
        img.src = "../kjl_images/open.gif";
    }
}
</script>