xaml - Silverlight - Adding MediaElement via C# - short time to manage Play() method -

i made simple app in windows phone silverlight 8.1. looks cell phone keypad lcd-looks screen shows number of current tapped button , plays tone sound of number.

i've been searching while found nothing specific.

i have problem play(); method because execute while i'm debugging in realtime after app-deploy device hear nothing...

i researched many topics , can tell depends on

mediaelementobject.currentstate; 

sometimes it's on "closed" state , on "opening"(and hear sound while debugging).

c#

private void keypadbuttonclick(object sender, routedeventargs e)     {         button currentbutton = sender button;         mediaelement keysound = null;         if (currentbutton != null)         {             string buttoncontentvalue = currentbutton.content.tostring();              keysound = new mediaelement();             contentpanel.children.add(keysound);             playtargetkeypadsound(buttoncontentvalue, keysound);             refreshnumber(buttoncontentvalue);         }         if (keysound != null)         {             contentpanel.children.remove(keysound);         }     }      private void playtargetkeypadsound(string buttoncontentvalue, mediaelement keysound)     {         string path = "/assets/sounds/keynumber_" + buttoncontentvalue + ".wav";         keysound.currentstatechanged += keysoundoncurrentstatechanged;         keysound.source = new uri(path, urikind.relativeorabsolute);         keysound.volume = 1.0;         keysound.autoplay = false;     }      private void keysoundoncurrentstatechanged(object sender, routedeventargs routedeventargs)     {         mediaelement sound = sender mediaelement;         if (sound != null) sound.play();     }      private void refreshnumber(string buttoncontentvalue)     {         numbertextblock.text = buttoncontentvalue;     } 

xaml

<grid x:name="contentpanel" grid.row="2" margin="8,0,8,12">         <grid.rowdefinitions>             <rowdefinition height="*" />             <rowdefinition height="*" />             <rowdefinition height="*" />             <rowdefinition height="*" />         </grid.rowdefinitions>         <grid.columndefinitions>             <columndefinition width="*" />             <columndefinition width="*" />             <columndefinition width="*" />         </grid.columndefinitions>          <!-- first row -->         <button click="keypadbuttonclick" content="1" style="{staticresource keypadbuttonstyle}" />         <button click="keypadbuttonclick" content="2" style="{staticresource keypadbuttonstyle}" grid.column="1" />         <button click="keypadbuttonclick" content="3" style="{staticresource keypadbuttonstyle}" grid.column="2" />          <!-- second row -->         <button click="keypadbuttonclick" content="4" style="{staticresource keypadbuttonstyle}" grid.row="1" />         <button click="keypadbuttonclick" content="5" style="{staticresource keypadbuttonstyle}" grid.row="1" grid.column="1" />         <button click="keypadbuttonclick" content="6" style="{staticresource keypadbuttonstyle}" grid.row="1" grid.column="2" />          <!-- third row -->         <button click="keypadbuttonclick" content="7" style="{staticresource keypadbuttonstyle}" grid.row="2" />         <button click="keypadbuttonclick" content="8" style="{staticresource keypadbuttonstyle}" grid.row="2" grid.column="1" />         <button click="keypadbuttonclick" content="9" style="{staticresource keypadbuttonstyle}" grid.row="2" grid.column="2" />          <!-- fourth row -->         <button click="keypadbuttonclick" content="*" style="{staticresource keypadbuttonstyle}" grid.row="3" />         <button click="keypadbuttonclick" content="0" style="{staticresource keypadbuttonstyle}" grid.row="3" grid.column="1" />         <button click="keypadbuttonclick" content="#" style="{staticresource keypadbuttonstyle}" grid.row="3" grid.column="2" />     </grid> 

many helping

ok.

i solved it...

c#

private void keypadbuttonclick(object sender, routedeventargs e)     {         button currentbutton = sender button;         if (currentbutton != null)         {             string buttoncontentvalue = currentbutton.content.tostring();              playtargetkeypadsound(buttoncontentvalue);             refreshnumber(buttoncontentvalue);         }     }      private void playtargetkeypadsound(string buttoncontentvalue)     {         string path = "/assets/sounds/keynumber_" + buttoncontentvalue + ".wav";         keysoundmediaelement.mediaopened += keysoundmediaelementonmediaopened;         keysoundmediaelement.source = new uri(path, urikind.relativeorabsolute);     }      private void keysoundmediaelementonmediaopened(object sender, routedeventargs routedeventargs)     {         mediaelement sound = sender mediaelement;         if (sound != null) sound.play();     }      private void refreshnumber(string buttoncontentvalue)     {         numbertextblock.text = buttoncontentvalue;     } 

xaml

<!-- fourth row -->         <button click="keypadbuttonclick" content="*" style="{staticresource keypadbuttonstyle}" grid.row="3" />         <button click="keypadbuttonclick" content="0" style="{staticresource keypadbuttonstyle}" grid.row="3" grid.column="1" />         <button click="keypadbuttonclick" content="#" style="{staticresource keypadbuttonstyle}" grid.row="3" grid.column="2" />          <mediaelement             x:name="keysoundmediaelement"             volume="1"             autoplay="false"             />