Home / Community & Support / Developer Productivity Tools Forums / ASP.NET > Combobox > populate 2 combobox

• Yann

  Posted on Jun 29, 2011 (permalink)

  hi,
  I'm new in telerik forum, my name is Yann.
  
  I have a problem, I have a web page with 2 combobox,  the data of both combox comming from a ObjectDataSource and I would change the data of my second combobox (combox2)  in relation of the data comming from my first combobox (combox1), like this:
  

  <asp:ObjectDataSource ID="odsState" runat="server" SelectMethod="viewAllStato" TypeName="wrState.State"></asp:ObjectDataSource>

   

  <asp:ObjectDataSource ID="odsCanton" runat="server"

  SelectMethod="viewCantoneByStato" TypeName="wrCanton.Canton">

  <SelectParameters>

  <asp:ControlParameter ControlID="rcbState" DefaultValue="" Name="idStato"

  PropertyName="OnClientDropDownClosed" Type="Int32" />

  </SelectParameters>

  </asp:ObjectDataSource>

  
  with my 2 combobox:
  <telerik:RadComboBox ID="rcbState" runat="server" DataSourceID="odsState" DataTextField="nomeStatoEN" DataValueField="id"></telerik:RadComboBox><br />
  

  <telerik:RadComboBox ID="rcbCanton" runat="server" AutoPostBack="True"

  DataSourceID="odsCanton" DataTextField="nomeCantoneEN" DataValueField="id"></telerik:RadComboBox>
  
  someone please could help me ? thx

• Answer Princy MVP

  Posted on Jun 29, 2011 (permalink)

  Hello Yan,
  
  Please check the following demo for the needed approach.
  ComboBox / Related ComboBoxes.
  
  Thanks,
  Princy.

• Yann

  Posted on Jun 29, 2011 (permalink)

  hi, thx for your answare.
  
  I have a problem here:
  // in this event all client objects
  // are already created and initialized
  countriesCombo = $find("<%= RadComboBox2.ClientID %>");
  citiesCombo = $find("<%= RadComboBox3.ClientID %>");
  
  betweend <%= %> with my data:
  

  cityCombo = $find(

   

  "<%= rcbCity.id %>");

  cantonCombo = $find(

   

  "<%= rcbCanton.id %>");
  
  
  

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