c# - Bind function to button in ListView using delegate in model -


i'm new c# , i'm trying bind function in each item of collection button item. collection list<assessmentitem>, each assessmentitem following:

public class assessmentitem {     public string label { get; set; }     public string explanation { get; set; }     public string resourceurl { get; set; }     public bitmapimage icon { get; set; }     public runfixer fixer { get; set; } }

public runfixer fixer delegate want bind button particular assessmentitem. here datatemplate i'm using accomplish plans:

    <datatemplate x:key="assessmentlisttemplate">         <grid margin="0,10">             <grid.columndefinitions>                 <columndefinition width="auto"/>                 <columndefinition width="*"/>                 <columndefinition width="auto"/>             </grid.columndefinitions>              <textblock text="{binding label}" fontsize="16" verticalalignment="center" grid.column="0" fontweight="bold" margin="15,0,0,0"/>             <button grid.column="2" margin="0,0,10,0">                 <image source="{binding icon}" width="64" height="64"/>             </button>         </grid>     </datatemplate>

how bind <button>'s click handler runfixer delegate? tried {binding fixer}, didn't work. changed fixer mousebuttoneventhandler, didn't work either.

thank time looking @ this! don't mind being educated.

additions

the runfixer delegate declared with

public delegate void runfixer();

final code

for personal documentation , other's satisfaction, i'm posting result worked me:

public class assessmentitem {     public string label { get; set; }     public string explanation { get; set; }     public string resourceurl { get; set; }     public bitmapimage icon { get; set; }     public runfixer fixer { get; set; }     delegatecommand _fixercommand = null;     public icommand fixercommand     {                 {             if (_fixercommand == null)             {                 _fixercommand = new delegatecommand(() => fixer());             }             return _fixercommand;         }     } }

and in datatemplate:

    <datatemplate x:key="assessmentlisttemplate">         <grid margin="0,10">             <grid.columndefinitions>                 <columndefinition width="auto"/>                 <columndefinition width="*"/>                 <columndefinition width="auto"/>             </grid.columndefinitions>              <textblock text="{binding label}" fontsize="16" verticalalignment="center" grid.column="0" fontweight="bold" margin="15,0,0,0"/>             <button grid.column="2" margin="0,0,10,0" command="{binding fixercommand}">                 <image source="{binding icon}" width="64" height="64"/>             </button>         </grid>     </datatemplate>

hope helps!

you can't bind function button. can bind command object button's command property. in order need modify class:

public class assessmentitem {     public string label { get; set; }     public string explanation { get; set; }     public string resourceurl { get; set; }     public bitmapimage icon { get; set; }     public runfixer fixer { get; set; }     icommand _fixercommand = new uicommand();     public icommand fixercommand {                 {             _fixercommand = _fixercommand ?? new delegatecommand<object>((o)=>                        {var f = fixer;                          if(f != null) f();});              return _fixercommand;}         } }

i'm using delegatecommand class part of prism library can downloaded here

then you're modifying data template bind fixercommand property

    <button grid.column="2" margin="0,0,10,0" command ="{binding fixercommand}">         <image source="{binding icon}" width="64" height="64"/>     </button>

Comments

Post a Comment

Popular posts from this blog

visual studio - vb.net filter binding source by time -

Image
hi there have database date/time (highlighted in red in image below) fields , formatting medium time shown below. and field type , format of log_in_time field.. i've connected database vb.net project , i'm using following code filter binding source log_in_time field of database. i'm using datetimepicker input source. note logouttime datetimepicker code.. private sub logintime_valuechanged(byval sender object, byval e system.eventargs) handles logintime.valuechanged, logintime.keypress 'filter binding source input data try '30-dec-99 default date time paymentdetailsbindingsource.filter = "log_in_time = '30-dec-99 " & logintime.text & "'" catch ex exception end try end sub the format of datetimepicker set custom format hh:mm tt problem above code not work, returns empty search result.. doing wrong appreciated.. thanks.. as per comment above, issue including more (or ...
Read more

php - SPIP: From Tag directly to an article -

i work spip , plugin called tagsphere works fine tags in spip. have tag groupe put 1 article tag. when click on tag in tagsphere send me before menu can see articles linked tag. want send me directly article without see tag menu before. here code model of thagsphere: <div id="tagsphere-#env{id_article}"> <ul> <boucle_mot(mots){id_groupe ?}> <li>[<a href="#url_mot">(#titre)</a>]</li> </boucle_mot> </ul> </div> anybody idea? if want skip tag page, have link directly article. <b_article> block prevents display tag if no article linked. <div id="tagsphere-#env{id_article}"> <ul> <boucle_mot(mots){id_groupe ?}> <b_article> <li> <a<boucle_article(articles){...
Read more

jquery - isAjaxRequest always return false -

i got error message 404,'model has not been saved' following code my action controller public function actionextend($id) { $model=$this->loadmodel($id); if(yii::app()->request->isajaxrequest) { $model->todate = date('y-m-d h:i:s a',(strtotime('next month',strtotime(date('y-01-d'))))); if($model->save()) { yii::app()->end(); } else { throw new chttpexception(404,'model has not been saved'); } } } the jquery call $("#buttonextend<?php echo $this->post_row;?>").click(function(e){ $.ajax({ type: "post", url: "<?php echo yii::app()->createurl('post/extend', array('id' => $data['id'])); ?>", }); }); why not ajax call ? thank help i found response, missed } , function ...
Read more