c# - Converting TextBox.Text to Int. (No-Code Behind) -

i have not found solution on internet solve issue. hope can me.

so title says. have this

public mycommand champion     {                 {             return new mycommand((id) =>             {                 championbyid(id);             });         }         set { _champion = value; }     }      private async void championbyid(object id)     {         _staticriotapi.getchampion(region.euw, (int)id);     } 

which bind button in view, looks this, pretty simple.

 <button content="search id" command="{binding champion}" commandparameter="{binding elementname=championid}">             </button>     <textbox grid.row="0" grid.column="1" name="championid"></textbox> 

the method getchampion needs id of champion, enter in text box, passed "id", tried casting int. this(like above) , this

" exception of type 'system.invalidcastexception' occurred in riotapiapplication.exe not handled in user code additional information: specified cast not valid."

i tried convert.toint32(id) this:

unable cast object of type 'system.windows.controls.textbox' type 'system.iconvertible'.

so next try tried including converter takes input of textbox , convert integer. eg. "aatrox" == 266, looks this. (i know isnt best solution, want work first)

switch (value string)         {             case "aatrox":                 value = 266;                 break;         }         return value; 

but still same issue. tried creating new mycommand class generic returned integer , still no hope.

can find solution or me right way. kinda stuck , don't know do. can write method takes string, defeat purpose of using library.

you referencing wrong object commandparameter - pass textbox command instead of containing textelement. in order fix this, have use "path" syntax in commandparameter binding:

<button content="search id" command="{binding champion}" commandparameter={binding elementname=championid, path=text}"> </button> <textbox grid.row="0" grid.column="1" name="championid"></textbox>