c# - Data-binding to KVP of Object,Object not allowing properties to be used or updated in real time? -
i have operation class , result class use build list, use xaml bind properties , converter return content based on properties, of works....
to make easy post xaml note works , need with.
<usercontrol x:class="operationlistview" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" mc:ignorable="d" xmlns:prism="http://www.codeplex.com/prism" xmlns:inf="clr-namespace:***;assembly=***" xmlns:c="clr-namespace:****.***" d:designheight="300" d:designwidth="300"> <control.resources> <c:languagetextconverter x:key="langconverter" /> <c:resultviewconverter x:key="statusconverter" /> <c:opdetailviewconverter x:key="opconverter" /> </control.resources> <grid> <grid.columndefinitions> <columndefinition width="1*"/> </grid.columndefinitions> <telerik:radgridview name="operationgrid" grid.column="0" rowheight="75" selectionmode="single" selecteditem="{binding selectedoperation, mode=twoway}" itemssource="{binding operations}" isreadonly="true" autogeneratecolumns="false" rowdetailsvisibilitymode="visiblewhenselected" showgrouppanel="false" rowindicatorvisibility="collapsed" > <telerik:radgridview.rowdetailstemplate> <datatemplate> <contentcontrol grid.column="1" template="{binding converter={staticresource opconverter}}" /> </datatemplate> </telerik:radgridview.rowdetailstemplate> <telerik:radgridview.columns> <telerik:gridviewdatacolumn header="name" datamemberbinding="{binding key.operationname, converter={staticresource langconverter}}" width="2*" isgroupable="false" /> <telerik:gridviewdatacolumn header="result" width="1*" maxwidth="75"> <telerik:gridviewdatacolumn.celltemplate> <datatemplate> <grid> <contentcontrol template="{binding value, converter={staticresource statusconverter}}"/> </grid> </datatemplate> </telerik:gridviewdatacolumn.celltemplate> </telerik:gridviewdatacolumn> </telerik:radgridview.columns> </telerik:radgridview> </grid> everything final binding works, , final binding works point...
<contentcontrol template="{binding value, converter={staticresource statusconverter}}"/> this works, when binding value converter fires on load , loads appropriate xaml.
however no additional changes update value...
in code behind @ point value.status updated , setter on status property fires propertychanged. nothing caught on front end.
public overallstatus status { { return this.status; } set { this.status = value; onpropertychanged(this, "status"); } } what property syntax bind value.property (currently doesn't work @ all) , have recognize propertychanged setter 3 levels down view.
i have created sample showing nested properties. when change property value @ button click, reflected in grid. more can read here : property path syntax
<window x:class="wpfapplication1.mainwindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" title="mainwindow" height="524.627" width="862.313"> <stackpanel> <datagrid x:name="dgrd" horizontalalignment="left" margin="10,10,0,0" verticalalignment="top" autogeneratecolumns="false"> <datagrid.columns> <datagridtextcolumn binding="{binding value.status.name}" clipboardcontentbinding="{x:null}" header="status"/> </datagrid.columns> </datagrid> <button content="button" horizontalalignment="left" margin="29,38,0,0" grid.row="1" verticalalignment="top" width="75" click="button_click"/> </stackpanel> </window> using system; using system.componentmodel; using system.collections.objectmodel; using system.collections.generic; using system.windows; using system.windows.controls; namespace wpfapplication1 { /// <summary> /// interaction logic mainwindow.xaml /// </summary> public partial class mainwindow : window { public mainwindow() { initializecomponent(); dgrd.itemssource = datastore.operations; } private void button_click(object sender, routedeventargs e) { datastore.operations[0].value.status.name = "n/a"; // change first item } } public class datastore { //static list<operation> _operations; public static list<operation> operations; static datastore() { operations = new list<operation>() { new operation(){ value = new recordinner(){ status = new overallstatus (){ name="pending"}}}, new operation(){ value = new recordinner(){ status = new overallstatus (){ name="started"}}}, new operation(){ value = new recordinner(){ status = new overallstatus (){ name="completed"}}} }; } } public class operation { recordinner _value; public recordinner value { { return _value; } set { _value = value; } } } public class recordinner { overallstatus _status; public overallstatus status { { return _status; } set { _status = value; } } } public class overallstatus:inotifypropertychanged { string _name; public string name { { return _name; } set { _name = value; onpropertychanged("name"); } } public event propertychangedeventhandler propertychanged; public void onpropertychanged(string name) { if (propertychanged != null) propertychanged(this, new propertychangedeventargs(name)); } } }
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