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Datalist nested datalist (page binding background code using itemdatabound event for pure code)

Source: Internet
Author: User
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  1. Project template directly pulls a radiobutton and then writes the JS Code as follows:

    <Script language = "JavaScript">
    Function check (radio ){
    VaR radiobuttons = Document. getelementsbytagname ("input ");
    For (VAR I = 0; I <radiobuttons. length; I ++ ){
    If (radiobuttons [I]. type = "radio "){
    If (radiobuttons [I] = radio ){
    Continue;
    }
    Else {
    Radiobuttons [I]. Checked = false;
    }

    }
    }
    }
    </SCRIPT>

    Source file:
    <Asp: datalist id = "datalist1" runat = "server">
    <Itemtemplate>
    <Asp: radiobutton id = "radiobutton1" onclick = "check (this)" runat = "server"/>
    </Itemtemplate>
    </ASP: datalist>

 

 

  1. <% @ Page Language = "C #" autoeventwireup = "true" codefile = "datalistnesting. aspx. cs" inherits = "datalistnesting" %>
  1. <! Doctype HTML public "-// W3C // dtd xhtml 1.0 transitional // en" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
  2. <HTML xmlns = "http://www.w3.org/1999/xhtml">
  3. <Head runat = "server">
  4. <Title> datalistnesting </title>
  5. </Head>
  6. <Body>
  7. <Form ID = "form1" runat = "server">
  8. <Div>
  9. <Asp: datalist id = "datalist1" runat = "server" onitemdatabound = "datalist1_itemdatabound">
  10. <Itemtemplate>
  11. <Asp: Label id = "label1" runat = "server" text = '<% # eval ("orderid") %>'> </ASP: Label>
  12. <Asp: Label id = "label2" runat = "server" text = '<% # eval ("customerid") %>'> </ASP: Label>
  13. <Asp: datalist id = "datalist2" runat = "server">
  14. <Itemtemplate>
  15. <Asp: Label id = "label1" runat = "server" text = '<% # eval ("productid") %>'> </ASP: Label>
  16. <Asp: Label id = "label2" runat = "server" text = '<% # eval ("unitprice") %>'> </ASP: Label>
  17. <Asp: Label id = "label3" runat = "server" text = '<% # eval ("quantity") %>'> </ASP: Label>
  18. </Itemtemplate>
  19. </ASP: datalist>
  20. </Itemtemplate>
  21. </ASP: datalist>
  22. </Div>
  23. </Form>
  24. </Body>
  25. </Html>

Copy code

  1. Using system;
  2. Using system. Data;
  3. Using system. configuration;
  4. Using system. collections;
  5. Using system. Web;
  6. Using system. Web. Security;
  7. Using system. Web. UI;
  8. Using system. Web. UI. webcontrols;
  9. Using system. Web. UI. webcontrols. webparts;
  10. Using system. Web. UI. htmlcontrols;
  11. Using system. Data. sqlclient;
  13. Public partial class datalistnesting: system. Web. UI. Page
  14. {
  15. Private void bindlist ()
  16. {
  17. Sqlconnection Cn = new sqlconnection (@ "Server =. \ sqlexpress; uid = sa; Pwd =; database = northwind ");
  18. Sqldataadapter da = new sqldataadapter ("select orderid, customerid from orders", CN );
  19. Dataset DS = new dataset ();
  20. CN. open ();
  21. Da. Fill (DS );
  22. CN. Close ();
  23. Datalist1.datasource = Ds. Tables [0]. defaultview;
  24. Datalist1.datakeyfield = "orderid ";
  25. Datalist1.databind ();
  26. }
  28. Private void page_load (Object sender, system. eventargs E)
  29. {
  30. If (! Ispostback)
  31. {
  32. Bindlist ();
  33. }
  34. }
  36. Protected void datalist1_itemdatabound (Object sender, datalistitemeventargs E)
  37. {
  38. Datalist datalist2;
  39. If (E. Item. itemtype = listitemtype. Item | E. Item. itemtype = listitemtype. alternatingitem)
  40. {
  41. Datalist2 = E. Item. findcontrol ("datalist2") as datalist;
  42. If (datalist2! = NULL)
  43. {
  44. Sqlconnection Cn = new sqlconnection (@ "Server =. \ sqlexpress; uid = sa; Pwd =; database = northwind ;");
  45. Sqldataadapter da = new sqldataadapter ("select productid, unitprice, quantity from [Order Details] Where orderid = @ orderid", CN );
  46. Da. selectcommand. Parameters. addwithvalue ("@ orderid", (E. Item. dataitem as datarowview) ["orderid"]);
  47. Dataset DS = new dataset ();
  48. CN. open ();
  49. Da. Fill (DS );
  50. CN. Close ();
  51. Datalist2.datasource = Ds. Tables [0]. defaultview;
  52. Datalist2.databind ();
  53. }
  54. }
  55. }
  56. }

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