c# - How to show foreign key value in editmode (detailview)? -


i have little problem gridview. in editmode load dropdownlist content database (foreign key!). when save changes , go after again in editview, dropdownlist shows first entry table , not value value saved. how can set default value in dropdown value, set in database, when go in editmode?

i hope concern understandable. thank helping!

my code (shorted)

<asp:detailsview id="dtvprojektdetails" runat="server" datasourceid="sqlprojectdetails" autogeneraterows="false" datakeynames="projectid" defaultmode="edit" onitemupdating="dtvprojektdetails_itemupdating"> <fields>    <asp:templatefield headertext="segment" sortexpression="fk_segment">       <edititemtemplate>          <asp:dropdownlist id="ddlsegment" runat="server" datasourceid="sqldssegment" datatextfield="segment" datavaluefield="segid">          </asp:dropdownlist>       </edititemtemplate>    </asp:templatefield> </fields> </asp:detailsview>

datasource of dropdown (shorted)

<asp:sqldatasource id="sqldssegment" runat="server" connectionstring="<%$ connectionstrings:cslinker %>" selectcommand="select * [tabsegment] order segment]"></asp:sqldatasource>

datasource of detailview:

<asp:sqldatasource id="sqlprojectdetails" runat="server"          connectionstring="<%$ connectionstrings:cslinker %>"          selectcommand="select * [tabprojects] ([projectid] = @projectid)"          updatecommand="update [tabprojects] set [name] = @name, [proejctno] = @proejctno, [startdate] = @startdate, [enddate] = @enddate, [fk_owner] = @fk_owner, [fk_segment] = @fk_segment, [fk_projectcategorie] = @fk_projectcategorie, [fk_projectfiles] = @fk_projectfiles, [fk_mailings] = @fk_mailings, [botschaft] = @botschaft, [ziel] = @ziel, [callmenge] = @callmenge, [quote] = @quote, [zielgruppe] = @zielgruppe, [inboundnummer] = @inboundnummer, [wissen] = @wissen, [prozess] = @prozess, [goodies] = @goodies, [fk_sprachen] = @fk_sprachen [projectid] = @projectid">         <selectparameters>             <asp:controlparameter controlid="lblpid" name="projectid" propertyname="text" type="int64" />         </selectparameters>         <updateparameters>             <asp:parameter name="name" type="string" />             <asp:parameter name="proejctno" type="string" />             <%--<asp:parameter name="description" type="string" />--%>             <asp:parameter name="startdate" type="datetime" />             <asp:parameter name="enddate" type="datetime" />             <asp:parameter name="fk_owner" type="int64" />             <asp:parameter name="fk_segment" type="int64" />             <asp:parameter name="fk_projectcategorie" type="int64" />             <asp:parameter name="fk_projectfiles" type="int64" />             <asp:parameter name="fk_mailings" type="int64" />             <asp:parameter name="botschaft" type="string" />             <asp:parameter name="ziel" type="string" />             <asp:parameter name="callmenge" type="string" />             <asp:parameter name="quote" type="string" />             <asp:parameter name="zielgruppe" type="string" />             <asp:parameter name="inboundnummer" type="string" />             <asp:parameter name="wissen" type="string" />             <asp:parameter name="prozess" type="string" />             <asp:parameter name="goodies" type="string" />             <asp:parameter name="fk_sprachen" type="int64" />             <%--<asp:parameter name="fk_agenten" type="int64" />--%>             <asp:parameter name="projectid" type="int64" />         </updateparameters>     </asp:sqldatasource>

set selectedvalue - property of dropdownlist:

<asp:dropdownlist id="ddllinkcategorie" runat="server" datasourceid="sqldscategorie"                             datatextfield="categorie" datavaluefield="lincatid" selectedvalue='<%bind("columnname")%>'>                         </asp:dropdownlist>

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