WPF C# Treeview with dynamic list from database -

i want use treeview show question , answer. pull list of questions answered , if have been answered in past show answer question. each answer either list in combobox or straight text. need pull correct template answer. have stored in database id of 1 of templates answer should pull. have never used before not sure how. if there better way too.

<src:uefusercontrol x:class="empcoverage.workobjects.controls.grwoinvestigatorquestions"         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"          xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"          xmlns:party="clr-namespace:party_info.classes;assembly=partyinfo"          xmlns:src="clr-namespace:oic.infrastructure.classes;assembly=oic.infrastructure"           xmlns:oic="clr-namespace:empcoverage.classes.general_referral"                      width="auto" height="auto">     <usercontrol.resources>     <style x:key="{x:type textbox}" targettype="textbox" basedon="{staticresource {x:type textbox}}">         <setter property="height" value="auto" />         <setter property="minwidth" value="100"/>         <setter property="charactercasing" value="upper"/>     </style>      <style x:key="{x:type label}" targettype="label" basedon="{staticresource {x:type label}}">         <setter property="horizontalalignment" value="right"/>     </style>      <hierarchicaldatatemplate x:name="hdttextbox" datatype="{x:type oic:mytemplateselector}" itemssource="{binding path=answers}">         <stackpanel>             <label content="{binding path=question}" grid.row="0" grid.column="1" visibility="hidden"/>             <textblock name="txtanswer" text="{binding path=answer}" grid.row="1" grid.column="0" textwrapping="wrap" />         </stackpanel>     </hierarchicaldatatemplate>      <hierarchicaldatatemplate x:name="hdtcombobox" datatype="{x:type oic:mytemplateselector}" itemssource="{binding path=answers}">         <stackpanel>             <label content="{binding path=question}" grid.row="0" grid.column="1" visibility="hidden"/>             <combobox name="cboanswer" grid.row="1" grid.column="0" width="auto" minwidth="200"                       itemssource="{binding answers}" displaymemberpath="answer" selectedvalue="{binding path=answer}" />         </stackpanel>     </hierarchicaldatatemplate>  </usercontrol.resources>  <grid width="auto" height="auto" name="gdgeneralreview">     <grid.rowdefinitions>         <rowdefinition height="auto"/>         <rowdefinition height="auto"/>         <rowdefinition height="auto"/>         <rowdefinition height="40"/>         <rowdefinition height="auto"/>     </grid.rowdefinitions>     <grid.columndefinitions>         <columndefinition width="auto"/>         <columndefinition width="auto"/>     </grid.columndefinitions>      <treeview name="tvgeneralreferral" grid.row="0" grid.column="0" selecteditemchanged="tvgeneralreferral_selecteditemchanged" >      </treeview>       <button grid.row="4" grid.column="0" grid.columnspan="2" name="btnsave" height="30" width="60" content="save" verticalalignment="center" click="btnsave_click" /> </grid> 

you can define itemtemplateselector return proper template based on logic provide.

<window.resources>     <vm:mytemplateselector x:key="mytemplateselector" /> </window.resources>  <treeview itemtemplateselector={staticresource mytemplateselector} /> 

a sample selector

public class mytemplateselector : datatemplateselector {     public override datatemplate selecttemplate(object item, dependencyobject container)     {         if (item string)             return ((frameworkelement) container).findresource("texttemplate") datatemplate;         else             return ((frameworkelement)) container).findresource("enumtemplate") datatemplate;                  } }