asp.net - GridView OnRowUpdating Event not firing on pop-up form -


i'm having trouble calling onrowupdating event on gridview. gridview has auto-generated edit button working event handler. i've been looking @ other related questions , cannot seem find solution.

the common, popular issue i've come across attempting bind grid on postback during page_load. attempted follow general advice , bind grid when !ispostback, page always in postback-mode leads me believe has default pop-up state.

the form gridview dialog-window (pop-up?) , think has postback behavior , why updating event not firing:

doesn't work

gridview definition:

<saleslogix:slxgridview runat="server" id="oppprodgrdview" gridlines="none" allowpaging="false" selectedrowstyle lightcyan="backcolor" autogeneratecolumns="false"      autogenerateeditbutton="true"      autogeneratedeletebutton="true"     onrowupdating="grdoppproducts_rowupdating"      onrowupdated="grdoppproducts_rowupdated"     onrowediting="grdoppproducts_rowediting"      cellpadding="1" cssclass="datagrid" pagerstyle-cssclass="gridpager" alternatingrowstyle-cssclass="rowdk" rowstyle-cssclass="rowlt" selectedrowstyle-cssclass="rowselected" showemptytable="true" enableviewstate="false" emptytablerowtext="<%$ resources:dgoppproducts.emptytablerowtext %>" expandablerows="true" resizablecolumns="true" currentsortdirection="ascending" currentsortexpression=""  datasourceid="sqldatasource2" datakeynames="productid" showsorticon="false" useslxpagertemplate="true" allowsorting="true" pagesize="16" showfooter="true">     <columns>         <asp:templatefield headertext="version">            <itemtemplate>                 <asp:label text='<%# acdgetversion(eval("productid").tostring())%>'                     runat="server" />            </itemtemplate>        </asp:templatefield>         <asp:templatefield headertext="name" headerstyle-horizontalalign="left">             <edititemtemplate>              <asp:textbox id="txtname" runat="server" text='<%# bind("productname") %>'></asp:textbox>             </edititemtemplate>             <footertemplate>              <asp:textbox id="txtnewname" runat="server" ></asp:textbox>             </footertemplate>             <itemtemplate>              <asp:label id="lblname" runat="server" text='<%# bind("productname") %>'></asp:label>             </itemtemplate>         </asp:templatefield>     </columns>      <pagerstyle cssclass="gridpager"></pagerstyle>      <rowstyle cssclass="rowlt"></rowstyle>      <selectedrowstyle cssclass="rowselected"></selectedrowstyle> </saleslogix:slxgridview>

datasource definition:

<asp:sqldatasource id="sqldatasource2" runat="server" connectionstring="<% provider=sqlncli11;data source=sqlsrv;integrated security=sspi;initial catalog=slxbeta %>"      providername="<% system.data.oledb %>"     selectcommand="select op.productid, op.sort, ap.productname, '2016' version                      dbo.opportunity_product op inner join dbo.ext_opportunity_produc ap on op.oppproductid = ap.oppproductid                      op.opportunityid =?" >     <selectparameters>         <asp:controlparameter controlid="txtopportunityid" name="opportunityid" propertyname="text"/>     </selectparameters> </asp:sqldatasource>

binding:

//mp - bind datasource connection string @ runtime  protected void page_load(object sender, eventargs e) {     if (visible) {          if (!this.ispostback) {             //can never reach here          }         sqldatasource2.providername = "system.data.oledb";         sage.platform.data.idataservice datasvc = applicationcontext.current.services.get<sage.platform.data.idataservice>();         string strconn = datasvc.getconnectionstring();         sqldatasource2.connectionstring = strconn;          sqldatasource2.selectparameters["opportunityid"].defaultvalue = txtopportunityid.text;     } }

event handlers: 

//works protected void grdoppproducts_rowediting(object sender, gridviewediteventargs e) {     oppprodgrdview.editindex = e.neweditindex; }   //not working protected void grdoppproducts_rowupdating(object sender, gridviewupdateeventargs e) {     textbox txtname = (textbox)oppprodgrdview.rows[e.rowindex].findcontrol("txtname"); }


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