wpf - Use CollectionViewSource with TabControl -
i'm trying group , display items of observablecollection, using xaml code. works using simple collectionviewsource , listbox[1].
actually, prefer display group's content in tabcontrol. google led me following social.msdn article wich presents workaround display groups tabcontrol using code behind:
however, i'm using mvvm , must rely on xaml only, can't work. actually, collectionviewsource populates groups (the tabcontrol shows correct tabitemheaders), clicking on of these tabitems freezes application. here's i've tried:
<stackpanel x:key="modulselectinputparameterview"> <stackpanel.resources> <collectionviewsource x:key="cvs" x:name="collectionviewsource" source="{binding referencedlmtitem.modulinputparametercollection }"> <collectionviewsource.groupdescriptions> <propertygroupdescription propertyname="category"/> </collectionviewsource.groupdescriptions> </collectionviewsource> </stackpanel.resources> <grid > <tabcontrol itemssource="{binding source={staticresource cvs}, path=groups, mode=oneway}" datacontext="{binding source={staticresource cvs}, mode=oneway}"> <!-- first level --> <tabcontrol.itemtemplate> <datatemplate> <textblock text="{binding name}"/> </datatemplate> </tabcontrol.itemtemplate> <tabcontrol.contenttemplate> <datatemplate> <listbox itemssource="{binding items}"> second level <listbox.itemtemplate> <datatemplate> <expander header="{binding name}"> <listbox itemssource="{binding items}"> item of collection <listbox.itemtemplate> <datatemplate> <stackpanel orientation="horizontal"> <textblock text="{binding key}"/> <textblock text=" - "/> <textblock text="{binding value.comment}"/> </stackpanel> </datatemplate> </listbox.itemtemplate> </listbox> </expander> </datatemplate> </listbox.itemtemplate> </listbox> </datatemplate> </tabcontrol.contenttemplate> </tabcontrol> </grid> </stackpanel> [1]: peace of xaml work expected, uses wrappanel display groups contents:
<stackpanel x:key="modulselectinputparameterview"> <stackpanel.resources> <collectionviewsource x:key="cvs" x:name="collectionviewsource" source="{binding referencedlmtitem.modulinputparametercollection }"> <collectionviewsource.groupdescriptions> <propertygroupdescription propertyname="category"/> </collectionviewsource.groupdescriptions> </collectionviewsource> </stackpanel.resources> <listbox itemssource="{binding source={staticresource cvs}}" verticalcontentalignment="top" itemcontainerstyle="{staticresource modulselectinputparameterlistboxitemcontainerstyle}" scrollviewer.horizontalscrollbarvisibility="disabled"> <listbox.groupstyle> <groupstyle> <groupstyle.headertemplate> <datatemplate> <border borderbrush="darkgray" borderthickness="2" margin="2"> <textblock fontweight="bold" fontsize="14" text="{binding path=name}" horizontalalignment="center" minwidth="100"/> </border> </datatemplate> </groupstyle.headertemplate> <groupstyle.panel> <itemspaneltemplate> <wrappanel orientation="horizontal" margin="2"/> </itemspaneltemplate> </groupstyle.panel> <groupstyle.containerstyle> <style targettype="{x:type groupitem}" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"> <setter property="control.template"> <setter.value> <controltemplate targettype="{x:type groupitem}"> <border borderthickness="2" borderbrush="darkgray"> <stackpanel> <contentpresenter content="{templatebinding contentcontrol.content}" contenttemplate="{templatebinding contentcontrol.contenttemplate}" contentstringformat="{templatebinding contentcontrol.contentstringformat}" /> <itemspresenter margin="2,0,2,2" /> </stackpanel> </border> </controltemplate> </setter.value> </setter> </style> </groupstyle.containerstyle> </groupstyle> </listbox.groupstyle> <listbox.itemspanel> <itemspaneltemplate> <wrappanel isitemshost="true" orientation="vertical" verticalalignment="top"/> </itemspaneltemplate> </listbox.itemspanel> </listbox> </stackpanel>
i think there's wrong binding code should work. same items in both listboxes try bind second listbox itemssource first listbox itemssource :
<listbox itemssource="{binding items}" name="listbox"> <listbox.itemtemplate> <datatemplate> <expander header="{binding key}"> <listbox itemssource="{binding itemssource, elementname=listbox}"> <listbox.itemtemplate> <datatemplate> <stackpanel orientation="horizontal"> <textblock text="{binding key}"/> <textblock text=" - "/> <textblock text="{binding value}"/> </stackpanel> </datatemplate> </listbox.itemtemplate> </listbox> </expander> </datatemplate> </listbox.itemtemplate> </listbox>
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