c# - How to bind text to my custom XAML control? -

-

i want bind dependencyproperty textbox, need create control allows me write text in property "letter" , sets text of textblock defined in template. i've never done before i'm not sure of how it.

here's .xaml:

<resourcedictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:local="using:my_app">  <style targettype="local:gameletter" >     <setter property="template">         <setter.value>             <controltemplate targettype="local:gameletter">                 <grid>                     <image source="assets/imgs/letter_key.png"/>                     <viewbox margin="10,0">                         <textblock x:name="textblock" fontfamily="assets/fonts/avenirnext.ttf#avenir next" text="{binding letter}" foreground="black" horizontalalignment="center" verticalalignment="center"/>                     </viewbox>                 </grid>             </controltemplate>         </setter.value>     </setter> </style>

and here's .cs:

 public sealed class gameletter : control {     public gameletter()     {         this.defaultstylekey = typeof(gameletter);     }      public static readonly dependencyproperty letterproperty =         dependencyproperty.register("letter", typeof(string), typeof(gameletter), new propertymetadata(null));      public string letter     {         { return (string)getvalue(letterproperty); }         set { setvalue(letterproperty, value); }     } }

you're close. problem binding it'll search letter property on datacontext, not on control. can fix using templatebinding:

<style targettype="local:gameletter" >     <setter property="template">         <setter.value>             <controltemplate targettype="local:gameletter">                 <grid>                     <image source="assets/imgs/letter_key.png"/>                     <viewbox margin="10,0">                         <textblock x:name="textblock" fontfamily="assets/fonts/avenirnext.ttf#avenir next" text="{templatebinding letter}" foreground="black" horizontalalignment="center" verticalalignment="center"/>                     </viewbox>                 </grid>             </controltemplate>         </setter.value>     </setter> </style>

Comments

Post a Comment

Popular posts from this blog

python - pip install -U PySide error -

-
does know how avoid following error when running pip install -u pyside per official website instructions here: https://pypi.python.org/pypi/pyside/#installing-pyside-on-a-mac-os-x-system note have done brew install qt successfully. you using pip version 7.0.3, version 7.1.2 available. should consider upgrading via 'pip install --upgrade pip' command. collecting pyside using cached pyside-1.2.4.tar.gz installing collected packages: pyside running setup.py install pyside complete output command /applications/anaconda/bin/python -c "import setuptools, tokenize;__file__='/private/var/folders/dy/ttgqhqqx3g9bsbsnqnxsk2z80000gq/t/pip-build-cpxemt/pyside/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /var/folders/dy/ttgqhqqx3g9bsbsnqnxsk2z80000gq/t/pip-0r7hri-record/install-record.txt --single-version-externally-managed --compile: ...
Read more

arrays - C++ error: a brace-enclosed initializer is not allowed here before ‘{’ token -

-
simple question: i'm trying initialize array within c++ class declaration: using namespace std; #include <string> class myclass{ public: string myarray[] = {"a","b","c"}; }; and i'm getting error: error: brace-enclosed initializer not allowed here before ‘{’ token no, without complied c++11 compiler, cannot initialize member array in declaration. have initialize array member in constructor. , don't use open array if know number of elements initialize array.
Read more

cytoscape.js - How to add nodes to Dagre layout with Cytoscape -

-
i trying add nodes dagre graph through cityscape.js. problem nodes not painted. code have: cy.add({ group: "nodes", data: { id:"n0",name:"n0",weight: 75 }, }); $.ajax(url).done(function(jsontree){ var newnodes=[]; for(var i=1;i<6;i++){ //var child = jsontree.result[i]; newnodes.push( { group: "nodes", data: { id: "n"+i, name:"n"+i}}, { group: "edges", data: { id: "e"+i, source: "n0", target: "n"+i } } ); } cy.add(newnodes); any ideas? have used loaded function reload graph not work. not know if have use specific function reload graph. thank in advance. you need add positions new nodes. cytoscape.js docs : it important note positions of newly added nodes must defined when calling cy.add(). nodes can not placed in graph without valid position — otherwise not displayed. yo...
Read more