Repeater in Repeater

Question

I have a repeater inside a repeater. Where the parent repeater is bound to a Datatble which has a column with a Datatable in it.

I would li

Answer 1

Here is how it's done:

DataSource='<%# ((System.Data.DataRowView)Container.DataItem)[3] %>'

So if you know the column in the parent table that holds the child table/datasource for the nested repeater you can put this directly in the aspx file.

Answer 2

In the parent repeater, attach a method to the OnItemDataBound event and in the method, find the nested repeater and data bind it.

Example (.aspx):

<asp:Repeater ID="ParentRepeater" runat="server" OnItemDataBound="ItemBound">
    <ItemTemplate>
        <!-- Repeated data -->
        <asp:Repeater ID="ChildRepeater" runat="server">
            <ItemTemplate>
                <!-- Nested repeated data -->
            </ItemTemplate>
        </asp:Repeater>
    </ItemTemplate>
</asp:Repeater>

Example (.cs):

protected void Page_Load(object sender, EventArgs e)
{
    if (!IsPostBack)
    {
        ParentRepeater.DataSource = ...;
        ParentRepeater.DataBind();
    }
}

protected void ItemBound(object sender, RepeaterItemEventArgs args)
{
    if (args.Item.ItemType == ListItemType.Item || args.Item.ItemType == ListItemType.AlternatingItem)
    {
        Repeater childRepeater = (Repeater)args.Item.FindControl("ChildRepeater");
        childRepeater.DataSource = ...;
        childRepeater.DataBind();
    }
}

Answer 3

 protected void MainRepeater_ItemDataBound(object sender, RepeaterItemEventArgs args)
    {
         if (args.Item.ItemType == ListItemType.Item || args.Item.ItemType == ListItemType.AlternatingItem)
            {
                Repeater childRepeater = (Repeater)args.Item.FindControl("ChildRepeater");

                DataTable innerTable= ((DataRowView)args.Item.DataItem)["InnerTableColumnName"] as DataTable;
                childRepeater.DataSource = tasksDetails;
                childRepeater.DataBind();
            }
    }

Answer 4

If I need to do that, I usually do it using the ItemDataBound event of the parent repeater to bind the child repeater. If e is your EventArgs parameter, you'll have access to the child repeater via e.Item.FindControl(), and access to the data via e.Item.DataItem.

Answer 5

Repeater1 OnItemDataBound event, then FindControl Repeater2. The code-behind will not find the nested Repeater2! You have to use FindControl("Repeater2").

protected void Repeater1_ItemDataBound(object sender, RepeaterItemEventArgs e)
{
    if (e.Item.DataItem != null)
    {
        MemberView dataRow = (MemberView)e.Item.DataItem;
        var cat = MemberPresenter.getMemberID(dataRow.memID);

        Repeater rp2 = (Repeater)e.Item.FindControl("Repeater2");
        rp2.DataSource = cat;
        rp2.DataBind();
    }  
}

Answer 6

Here is an example of how to do this: Article for nested repeater control