c# - WPF custom control - reach element inside, rotate only part of custom control -


i have problem custom control. have custom controls, have 5-8 paths, user can "select". of paths want have label (inside custom control), can change content inside (from window, use custom control). xaml of custom control looks like:

<firstmolartooth ..........> <dockpanel>     <label name="lbl_tooth" dockpanel.dock="top" fontsize="10" horizontalalignment="center" />     <grid dockpanel.dock="bottom" horizontalalignment="center">         <path ......./>     </grid> </dockpanel> </firstmolartooth>

how can reach label inside window use custom control?? like:

<local:firstmolartooth x:name="tooth_15" ........> <lbl_tooth content="15" /> </local:firstmolartooth>

or

<local:firstmolartooth .... content="15"> </local:firstmolartooth>

second problem rotate custom control in window use with:

<local:firstmolartooth ....>     <local:firstmolartooth.layouttransform>         <rotatetransform centerx="0.5" centery="0.5" angle="180"/>     </local:firstmolartooth.layouttransform> </local:firstmolartooth>

my problem when (logically), rotate whole control (with label). want rotate paths , not label. thought can custom property label "isrotated" , when setted on true, should "reset" rotate (set angle 0) triggers. not able that. (should reach custom property xaml? or in code? maybe problem try reach xaml).

i know can delete label custom control , have in there paths , after rotate paths , label have in window. user can select "whole" custom control (select tooth) , can select "segment" of tooth (paths). therefore have inside custom control.

thanks advice.

for first problem, bind lbl_tooth against firstmolartooth content property. if doesn't work, create new dependency property inside firstmolartooth(of string) , bind against it. can change property later outside of custo control.

   <firstmolartooth x:name="molar" ..........>     <dockpanel>         <label name="lbl_tooth" dockpanel.dock="top" fontsize="10"                       horizontalalignment="center"             content="{binding content, elementname=molar}" />         <grid dockpanel.dock="bottom" horizontalalignment="center">             <path ......./>         </grid>     </dockpanel>

for second problem, make new dependency property of type doubule can set outside. creating dependency properties, can either google or search forum. millions of answers.

   <firstmolartooth x:name="molar" ..........>     <dockpanel>         <label name="lbl_tooth" dockpanel.dock="top"   fontsize="10"                       horizontalalignment="center"              content="{binding content, elementname=molar}" />         <grid dockpanel.dock="bottom" horizontalalignment="center">             <path .......>               <path.layouttransform>                   <rotatetransform centerx="0.5" centery="0.5"                       angle="{binding yournewangleproperty, elementname=molar}"/>               </path.layouttransform>             </path>         </grid>     </dockpanel>

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