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How does repeater nest and bind data?

Source: Internet
Author: User
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// Aspx
<Body>
<Form ID = "form1" runat = "server">
<Asp: repeater id = "repeatermain" runat = "server" onitemdatabound = "repeatermain_itemdatabound">
<Itemtemplate>
<A href = '<% # "details. aspx? Au_id = "+ databinder. eval (container, "dataitem. au_id ") %> '> <% # databinder. eval (container, "dataitem. au_id ") %> </a>
<Asp: repeater id = "repeatersub" runat = "server">
<Itemtemplate>
<A href = '<% # "details. aspx? Title_id = "+ databinder. eval (container, "dataitem. title_id ") %> '> <% # databinder. eval (container, "dataitem. title_id ") %> </a>
</Itemtemplate>
</ASP: repeater>
</Itemtemplate>
</ASP: repeater>
</Form>

// Aspx. CS
Private void bindmain ()
{
Sqlconnection Cn = new sqlconnection (@ "Server =. \ sqlexpress; uid = sa; Pwd = password; database = pubs ");
Sqldataadapter da = new sqldataadapter ("select au_id from authors", CN );
Dataset DS = new dataset ();
CN. open ();
Da. Fill (DS );
Repeatermain. datasource = Ds. Tables [0]. defaultview;
Repeatermain. databind ();
CN. Close ();
}

Protected void page_load (Object sender, eventargs E)
{
If (! Ispostback)
{
Bindmain ();
}
}

Protected void repeatermain_itemdatabound (Object sender, repeateritemeventargs E)
{
If (E. Item. itemtype = listitemtype. Item | E. Item. itemtype = listitemtype. alternatingitem)
{
String au_id = (datarowview) E. Item. dataitem). Row ["au_id"]. tostring ();
Repeater repeatersub = (repeater) E. Item. findcontrol ("repeatersub ");
If (repeatersub! = NULL)
{
Sqlconnection Cn = new sqlconnection (@ "Server =. \ sqlexpress; uid = sa; Pwd = password; database = pubs ");
Sqlcommand cmd = new sqlcommand ("select title_id from titleauthor where au_id = @ au_id", CN );
Cmd. Parameters. Add ("@ au_id", sqldbtype. varchar, 11). value = au_id;
CN. open ();
Repeatersub. datasource = cmd. executereader ();
Repeatersub. databind ();
CN. Close ();
}
}

 

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