问题没解决 .再发一贴.Gridview 嵌套 获取父Gridview的主键值

Question

 点击 asdf 这行"编辑" 怎么 获取cccc的主键值? 我的相关代码 
   在 父Gridview 那个事件下 获取主键值 给 Index;
  protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)
    {
       Index = Convert.ToInt16(e.CommandArgument.ToString());//我这样写不行我在 前台怎么给  CommandArgument赋值?
                 Response.Write(e.CommandArgument.ToString().Length);//结果是 :0
                   
    }  protected void ClassChild_RowEditing(object sender, GridViewEditEventArgs e)
    { GridView ClassChild = (GridView)sender;
        ClassChild.EditIndex = e.NewEditIndex;
        BindChild(ClassChild); }
    protected void BindChild(GridView gv)
    {
          gv.DataSource = Bll.GetList("SD_class.SD_ParentId =" + Convert.ToInt16(GridView1.DataKeys[Index].Values[0]) + "and SD_class.SD_Level=2"); //现在报错的地方就是 这个 "Index";
        gv.DataBind();
    }  
 private int Index
    {
        get
        {
            if (ViewState["Index"] != null && ViewState["Index"].ToString() != "")
            {
                return Convert.ToInt32(ViewState["Index"]);
            }
            else
            {
                return -1;
            }
        }
        set
        {
            ViewState["Index"] = value;
        }
    }
  
这是 中间一个模板列的内容
    <asp:TemplateField HeaderText="删除" ShowHeader="False">
            <ItemTemplate>
                <asp:LinkButton ID="LinkButton1" runat="server" CausesValidation="False"  CommandArgument='<%# Eval("SD_ClassId") %>' CommandName="Delete"
                    Text="删除"></asp:LinkButton>
            </ItemTemplate>
            
                <FooterTemplate>
                           <asp:LinkButton ID="AddClass" runat="server" CausesValidation="False"  CommandName="AddClass"
                    Text="添加栏目"></asp:LinkButton>
                    </FooterTemplate>
        </asp:TemplateField>
弄了好长时间 没弄成  谢谢 各位了.
上一贴地址 上一贴地址

Answer 1

  protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)
    {
       if(e.CommandName == "Delete")
{       Index = Convert.ToInt16(e.CommandArgument.ToString());//我这样写不行我在 前台怎么给  CommandArgument赋值?
                 Response.Write(e.CommandArgument.ToString().Length);//结果是 :0
}
                   
    }

Answer 2

To:migercai   这里关键是  index =-1;

Answer 3

protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)
    {
        Index = Convert.ToInt16(e.CommandArgument.ToString());//
                         
    }

Answer 4

不好意思，看来是取不到那个index，请看看这个怎么去外层datagrid的行序数
http://www.cnblogs.com/oomusou/archive/2007/06/26/796094.html

Answer 5

 protected void ParentGridView_RowEditing(object sender, GridViewEditEventArgs e)
    {
        int parent_index = e.NewEditIndex;
        ParentGridView.EditIndex = parent_index;
        bindParent();
        Session["sCategoryID"] =Convert.ToInt32(ParentGridView.DataKeys[parent_index].Value);
        Session["sParentGridViewIndex"] = parent_index;
    }
\

Answer 6

protected void ChildGridView_OnRowEditing(object sender, GridViewEditEventArgs e)
    {
        int parent_index = (int)Session["sParentGridViewIndex"];
        GridViewRow parent_row = ParentGridView.Rows[parent_index];
        GridView ChildGridView = (GridView)parent_row.FindControl("ChildGridView");
        int child_index = e.NewEditIndex;
        ChildGridView.EditIndex = child_index;
        Session["sProductID"] = Convert.ToInt32(ChildGridView.DataKeys[child_index].Value);
    }

Answer 7

假如这样赋值的话CommandArgument='<%# DataBinder.Eval(Container,"RowIndex") %>' 
那么后台就可以按你那样取值了

Answer 8

这样的话你就可以在你的内层gridview的rowcommand事件填写如下代码
if(e.CommandName == "Delete")
{
   string parentid = GridView1.DataKeys[Index].Value.ToString();
   删除后绑定
}

Answer 9

 protected void ClassChild_RowEditing(object sender, GridViewEditEventArgs e)
    { GridView ClassChild = (GridView)sender;
        ClassChild.EditIndex = e.NewEditIndex;
        BindChild(ClassChild); 
        // 
        GridViewRow parentRow = (GridViewRow)ClassChild.BindingContainer;
        object parentKey = GridView1.DataKeys[parentRow.RowIndex].Value;
}

Answer 10

CommandArgument=' <%# DataBinder.Eval(Container,"RowIndex") %>' 

Answer 11

1. 用 CommandArgument 去存 DataKey 或者 RowIndex 都是没必要的，当然没有错，
   本身控件层次足够你回溯到任何父级控件属性2. 一定要善用 Control_Event(object sender ...) 中的 sender 以及 Control.NamingContainer 和 Control.BindingContainer 属性3. ASP.NET DEMO 5：如何在GridView的RowCommand事件中获取当前的GridViewRow

Answer 12

1. 用 CommandArgument 去存 DataKey 或者 RowIndex 都是没必要的，当然没有错， 
  本身控件层次足够你回溯到任何父级控件属性 2. 一定要善用 Control_Event(object sender ...) 中的 sender 以及 Control.NamingContainer 和 Control.BindingContainer 属性 3. ASP.NET DEMO 5：如何在GridView的RowCommand事件中获取当前的GridViewRow
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Answer 13

非常感谢两位的帮助jimu8130 Jinglecat .

Answer 14

 我是要获取 父gridView 里面的 的ID  ..