nested gridview get parent row

Question

I am using Nested GridViews where each row in the gridview has child gridView. I am using RowDataBound Event of Parent GridView, to Bindin

Answer 1

<asp:GridView ID="gvParent" DataKeyNames="ID" runat="server" PageSize="1" AllowPaging="true"
PagerSettings-Mode="NextPrevious" AutoGenerateColumns="False" SkinID="GVCenter"
OnRowDataBound="gvParent_RowDataBound">
<Columns>
    <asp:BoundField DataField="Name" />
    <asp:TemplateField>
        <ItemTemplate>
            <asp:GridView ID="gvChild" DataKeyNames="ID" runat="server" AutoGenerateColumns="false"
                ShowHeader="false" OnRowDataBound="gvChild_RowDataBound">
                <Columns>
                    <asp:TemplateField>
                        <ItemTemplate>
                            <%# (((IDataItemContainer)Container.Parent.Parent.Parent).DataItem as MyClass).MyProperty %>
                        </ItemTemplate>
                    </asp:TemplateField>
                </Columns>
            </asp:GridView>
        </ItemTemplate>
    </asp:TemplateField>
</Columns>

Answer 2

I don't think you will be able to track it normally, but I would embed ID field into the hidden field and put this hidden field under TemplateField,

<ItemTemplate> 
    <asp:HiddenField ID="idOfYourHiddenField" runat="server" Value='<%# Eval("ID") %>' />     
    <asp:GridView ID="gvChild"  DataKeyNames="ID" runat="server" AutoGenerateColumns="false" ShowHeader="false" OnRowDataBound="gvChild_RowDataBound">                   
        <Columns>                      
            <asp:BoundField DataField="Name" />                                         
        </Columns>                 
    </asp:GridView>            
 </ItemTemplate> 

this way you can get its value by going

gvChild.Parent.FindControl("idOfYourHiddenField");

Answer 3

You Can Access The Parent of Child Gridview with the Parent Property. You must be Try This:

 GridView gvChild = (GridView)e.Row.FindControl("gvChild");
     Response.Write(gvChild.Parent);

Answer 4

Try this

 <asp:GridView ID="gvParent" DataKeyNames="ID" runat="server" PageSize="10" AllowPaging="true"
            PagerSettings-Mode="NextPrevious" AutoGenerateColumns="False" OnRowDataBound="gvParent_RowDataBound">
            <Columns>
                <asp:BoundField DataField="Name" />
                <asp:TemplateField>
                    <ItemTemplate>
                        <asp:HiddenField ID="HdnID" runat="server" Value='<%# Eval("ID") %>' />
                        <asp:GridView ID="gvChild" DataKeyNames="ID" runat="server" AutoGenerateColumns="false"
                            ShowHeader="false" OnRowDataBound="gvChild_RowDataBound">
                            <Columns>
                                <asp:BoundField DataField="Name" />
                            </Columns>
                        </asp:GridView>
                    </ItemTemplate>
                </asp:TemplateField>
            </Columns>
        </asp:GridView>

Code behind

protected void gvParent_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        if (e.Row.RowType == DataControlRowType.DataRow)
        {
            GridView gvChild = (GridView)e.Row.FindControl("gvChild");
            gvChild.DataSource = GetData();
            gvChild.DataBind();
        }
    }

    protected void gvChild_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        if (e.Row.RowType == DataControlRowType.DataRow)
        {
            string ID = ((HiddenField)e.Row.Parent.Parent.Parent.FindControl("HdnID")).Value;
        }
    }

Answer 5

You have to go 4 steps back and get the parent row like this

protected void gvChild_RowDataBound(object sender, GridViewRowEventArgs e)
        {
            if (e.Row.RowType == DataControlRowType.DataRow)
            {
                GridViewRow gvMasterRow = (GridViewRow)e.Row.Parent.Parent.Parent.Parent;
            }
        }