Windows Phone 7 - Keyboard showing up for now reason -

so have listbox template in bind observablecollection of objects called "totaldebits".

i have 2 way delete items:

• one 1 through context menu
• by range through delete button , fetching checked objects.

this works:

private void delete_click(object sender, routedeventargs e) {     deletedebit((directdebit)(((menuitem)sender).datacontext)); }  private void deletedebit(directdebit ddb) {     totaldebits.remove(ddb); }  private void delete_click(object sender, eventargs e) {     deletedebitlist(); }  private void deletedebitlist() {     try     {         foreach (var ddb in totaldebits.tolist())             if (ddb.ischecked)                totaldebits.remove(ddb);      }     catch     {      }  } 

in both case, items deleted, problem is, in second case, keyboard showing right after items deleted, absolutely no reason.. of course can hide right after focusing on list looks ugly , wish find way prevent issue happening.

edit:

you'll find hereunder xaml of page:

<controls:pivotitem header="direct debit" >             <grid>                 <grid.resources>                     <storyboard x:name="listboxsizeincrease">                         <doubleanimation storyboard.targetname="debitlist" storyboard.targetproperty="height"                             from="475" to="380" duration="0:0:.5"/>                     </storyboard>                     <storyboard x:name="listboxsizedecrease">                         <doubleanimation storyboard.targetname="debitlist" storyboard.targetproperty="height"                             from="380" to="475" duration="0:0:.5"/>                     </storyboard>                 </grid.resources>                  <grid.rowdefinitions>                     <rowdefinition height="auto"/>                     <rowdefinition height="auto"/>                     <rowdefinition height="*"/>                 </grid.rowdefinitions>                  <listbox grid.row="0" x:name="debitlist" height="475" margin="10,5,10,0" tap="listbox_tap" itemssource="{binding totaldebits}" verticalalignment="top" itemcontainerstyle="{staticresource customlistboxitem}">                     <listbox.itemtemplate>                         <datatemplate>                             <stackpanel margin="0,2,0,2">                                 <grid margin="5,5,5,5" horizontalalignment="stretch">                                     <grid.columndefinitions>                                         <columndefinition width="60" />                                         <columndefinition width="*"/>                                         <columndefinition width="auto"/>                                     </grid.columndefinitions>                                     <checkbox x:name="checkitem" grid.column="0" ischecked="{binding ischecked}" checked="checkitem_checked" unchecked="checkitem_unchecked" />                                     <textblock x:name="descriptionblock" fontsize="24" grid.column ="1" text="{binding description}" horizontalalignment="left" verticalalignment="center">                                        </textblock>                                     <textblock fontsize="24" grid.column ="2" text="{binding amount}" textalignment="right"  horizontalalignment="right" verticalalignment="center"/>                                 </grid>                                 <toolkit:contextmenuservice.contextmenu>                                     <toolkit:contextmenu name="contextmenu" iszoomenabled="false">                                         <toolkit:menuitem name="edit" header="edit" click="edit_click"/>                                         <toolkit:menuitem name="delete"  header="delete" click="delete_click"/>                                     </toolkit:contextmenu>                                 </toolkit:contextmenuservice.contextmenu>                             </stackpanel>                         </datatemplate>                     </listbox.itemtemplate>                 </listbox>                 <border margin="12,5,12,5" grid.row="1" background="lightgray"/>                 <grid grid.row="1" margin="14,8,14,8">                     <grid.columndefinitions>                         <columndefinition width="*"/>                         <columndefinition width="auto"/>                     </grid.columndefinitions>                      <textblock grid.column="0" text="total direct debit" fontsize="28" fontweight="bold" foreground="darkslategray"/>                     <textblock grid.column="1" x:name="totalblock" text="{binding totalvalue}" fontsize="28" fontweight="bold" foreground="darkslategray"/>                 </grid>                   <grid grid.row="2">                     <grid.rowdefinitions>                         <rowdefinition height="auto"/>                     </grid.rowdefinitions>                      <border margin="12,5,12,5" background="lightgray">                     <grid grid.row="0">                         <grid.columndefinitions>                             <columndefinition width="300"/>                             <columndefinition width="*"/>                         </grid.columndefinitions>                         <stackpanel orientation="vertical" grid.column="0">                             <textblock margin="10,0,0,0" text="description" fontsize="20" foreground="darkslategray"/>                             <textbox x:name="descriptionbox" fontsize="15" />                         </stackpanel>                         <grid grid.column="1">                             <grid.columndefinitions>                                 <columndefinition width="*"/>                                 <columndefinition width="auto"/>                             </grid.columndefinitions>                             <stackpanel orientation="vertical" grid.column="0">                                 <textblock margin="0,0,0,0" text="amount" foreground="darkslategray"/>                                 <textbox x:name="amountbox" fontsize="15" />                             </stackpanel>                             <stackpanel orientation="vertical" grid.column="1">                                 <textblock margin="10,0,0,0" text="." foreground="darkslategray"/>                                 <textbox x:name="decimalbox" width="60" fontsize="15" maxlength="2"/>                             </stackpanel>                         </grid>                     </grid>                     </border>                 </grid>              </grid>         </controls:pivotitem>