c# - How to populate a combobox with SQL Server stored procedure -

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using: asp.net , c#

i'm trying populate combobox values sql server stored procedure. have combobox loading , working, don't know how make values show drop down list customer choose. listitem correct way load drop down menu?

here have far:

.aspx page:

<asp:toolkitscriptmanager id="scriptmanager1" runat="server" /> <div>     <asp:updatepanel id="updatepanel1" runat="server">     <contenttemplate>     <asp:combobox id="combobox1" runat="server" datasourceid="sql"              datatextfield="datatext" datavaluefield="datavalue" maxlength="0"              style="display: inline;">             <asp:listitem value="0">please choose item......</asp:listitem>             //what put here load , display stored procedure in list     </asp:combobox>         <asp:sqldatasource id="sql1" runat="server"              connectionstring="<%$ companyconnectionstring %>"              selectcommand="companystoredprocedure" selectcommandtype="storedprocedure">             <selectparameters>                 <asp:parameter name="parameterid" type="int32" />             </selectparameters>         </asp:sqldatasource>   <asp:label id="label1" runat="server" text=""></asp:label>     </contenttemplate>     </asp:updatepanel>   </div>   </asp:toolkitscriptmanager>

your <asp:parameter name="parameterid" type="int32" /> not filled in value, why combobox not being populated.

you can either:

populate programmatically in code behind:

protected function page_load(object sender, eventargs e) {   sql1.selectparameters["parameterid"].defaultvalue = 12;   combobox1.datasource = sql1.select(datasourceselectarguments.empty);   combobox1.databind(); }

or can make <asp:sessionparameter> or <asp:controlparameter name="parameterid" type=int32" ...

that is, linking session value or asp.net control.


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