c# - How do I maintain the selected item in GridView DropDownList -


my problem not able retain item in gridview after gridview_rowediting event.

 <asp:templatefield headerstyle-cssclass="gridheading" headertext="get alerts sms"                                 itemstyle-cssclass="gridvalue" itemstyle-horizontalalign="center">          <itemtemplate>                  <asp:label id="lblalertbysmsgeofence" runat="server" text=' <%# (convert.toboolean(convert.toint32(eval("alertbysms")))) ? "yes" : "no" %>'></asp:label>          </itemtemplate>          <edititemtemplate>               <asp:dropdownlist id="ddlalertbysmsgeofence" runat="server" appenddatabounditems="true"                                         cssclass="gridvalue">                                         <asp:listitem text="yes" value="1"/>                                         <asp:listitem text="no" value="0" />                                     </asp:dropdownlist>                                 </edititemtemplate>                                 <headerstyle cssclass="gridheading" />                                 <itemstyle cssclass="gridvalue" horizontalalign="center" />  </asp:templatefield>

edit

    protected void grdgeofence_rowediting(object sender, gridviewediteventargs e)     {          gridviewrow row = (gridviewrow)grdgeofence.rows[e.neweditindex];         grdgeofence.editindex = e.neweditindex;         list<commongeofencealert> geofencedata = new blsmsalertdetail().getgeofencealertdetail(session["sessaccountid"].tostring(), txtdeviceid.text);         (int y = 0; y < geofencedata.count; y++)         {             geofencedata[y].vehiclenumber = ddlvehiclenumber.selecteditem.text;         }         grdgeofence.datasource = geofencedata;         grdgeofence.databind();     }  protected void grdgeofence_rowupdating(object sender, gridviewupdateeventargs e)  {     gridviewrow row = (gridviewrow)grdgeofence.rows[e.rowindex];      string id = grdgeofence.datakeys[e.rowindex].value.tostring();      label lblvehicle = (label)row.findcontrol("lblvehiclegeofence");     textbox mobilenumber = (textbox)row.findcontrol("txtmobilegeofence");     textbox emailid = (textbox)row.findcontrol("txtemailgeofence");     dropdownlist ddlalertbysms = (dropdownlist)row.findcontrol("ddlalertbysmsgeofence");     dropdownlist ddlalertbyemail = (dropdownlist)row.findcontrol("ddlalertbyeemailgeofence");     dropdownlist alertatgeofenceenter = (dropdownlist)row.findcontrol("ddlalertgeofenceenter");     dropdownlist alertatgeofenceexit = (dropdownlist)row.findcontrol("ddlalertgeofenceexit");     dropdownlist ddladdress = (dropdownlist)row.findcontrol("ddlgeofenceaddressgrid");     blsmsalertdetail detail = new blsmsalertdetail();      int = updategeofence(id, mobilenumber.text, emailid.text, ddlalertbysms.selecteditem.value, ddlalertbyemail.selecteditem.value, alertatgeofenceenter.selecteditem.value, alertatgeofenceexit.selecteditem.value, ddladdress.selecteditem.text);     if (i == 1)     {         scriptmanager.registerclientscriptblock(this.page, typeof(page), guid.newguid().tostring(), "alert('success!!')", true);     }     else     {         scriptmanager.registerclientscriptblock(this.page, typeof(page), guid.newguid().tostring(), "alert('error!! not update value.')", true);         }          grdgeofence.editindex = -1;         list<commongeofencealert> geofencedata = new blsmsalertdetail().getgeofencealertdetail(session["sessaccountid"].tostring(), txtdeviceid.text);         (int y = 0; y < geofencedata.count; y++)         {             geofencedata[y].vehiclenumber = ddlvehiclenumber.selecteditem.text;         }         grdgeofence.datasource = geofencedata;         grdgeofence.databind(); }  protected void grdgeofence_rowdatabound(object sender, gridviewroweventargs e)     {         if (grdgeofence.editindex == e.row.rowindex && e.row.rowtype == datacontrolrowtype.datarow)         {             dropdownlist ddladdress = (dropdownlist)e.row.cells[0].findcontrol("ddlgeofenceaddressgrid");             list<commonsmsalertdetail> getsmsdispatcherdata = new blsmsalertdetail().getsmsalertdetail(session["sessaccountid"].tostring());              (int = 0; < getsmsdispatcherdata.count; i++)             {                 ddladdress.items.add(new listitem(getsmsdispatcherdata[i].place, getsmsdispatcherdata[i].place));        }             //ddladdress.datasource = getsmsdispatcherdata;             //ddladdress.datatextfield = "place";             //ddladdress.datavaluefield = "place";             //ddladdress.databind();         }     }

the database return 0/1 depending upon situation , convert yes , no using boolean expressions.

i want keep value of "lblalertbysmsgeofence" selected text of dropdownlist "ddlalertbysmsgeofence"

i have seen many solution of many websites including so. method lengthy , not in context situation. have around 100 dropdownlists , cannot rewrite code again , again..

is there simpler way it.?

add property selectedvalue='<%#eval("alertbysms")%>' dropdowlist ddlalertbysmsgeofence. check link how set selectedvalue of dropdownlist in gridview edittemplate more details.

<edititemtemplate>   <asp:dropdownlist id="ddlalertbysmsgeofence" runat="server"       appenddatabounditems="true" selectedvalue='<%#eval("alertbysms")%>'         cssclass="gridvalue">          <asp:listitem text="yes" value="1" />          <asp:listitem text="no" value="0" /> </asp:dropdownlist>

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