c# - No updated data in detail DataGrid -
there 2 datagrid on form linked collectionviewsource. when update observablecollection parts updated datagridmaster. if click on it, data appears in datagriddetail1. question. how make data updated without mouse clicks?
xaml:
<window.resources> <collectionviewsource x:key="vsmaster" source="{binding parts}"/> <collectionviewsource x:key="vsdetail1" source="{binding parties_v1, source={staticresource vsmaster}}" /> </window.resources> <datagrid x:name="datagridmaster" autogeneratecolumns="false" enablerowvirtualization="true" itemssource="{binding source={staticresource vsmaster}}" margin="0,10,346,384" rowdetailsvisibilitymode="visiblewhenselected"> <datagrid x:name="datagriddetail1" isreadonly="true" selectionmode="single" autogeneratecolumns="false" enablerowvirtualization="true" itemssource="{binding source={staticresource vsdetail1}}" issynchronizedwithcurrentitem="true" margin="0,149,346,215" rowdetailsvisibilitymode="visiblewhenselected"> public class part public part(int id, string pnumber, string owner, int? priceid, list<parties_v1> lparties) { id = id; part_number = pnumber; owner = owner; price_id = priceid; parties_v1 = lparties; } public int id { get; set; } public string part_number { get; set; } public string owner { get; set; } public int? price_id { get; set; } public list<parties_v1> parties_v1 { get; set; }my viewmodel
class mainwindowviewmodel : baseviewmodel { public string npart {get; set;} private observablecollection<partsview> _parts; public observablecollection<partsview> parts { { return _parts; } set { _parts = value; onpropertychanged("parts"); } } public mainwindowviewmodel() { _parts = partsrepository.getstartdata(); } relaycommand _findpartcommand; public icommand findpart { { if ( _findpartcommand == null) _findpartcommand = new relaycommand(executefindpartcommand, canexecutefindpartcommand); return _findpartcommand; } } public void executefindpartcommand(object parameter) { _parts = partsrepository.getpart(npart); } public bool canexecutefindpartcommand(object parameter) { return true; }
as didn't post complete code. so, created 1 myself see problem.
after doing changes, have refresh collection view using refresh().
((listcollectionview)datagridmaster.itemssource).refresh(); ** old answer without vm support **
my sample app code :
<window x:class="wpfresources._32691328.win32691328" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" title="win32691328" height="661.015" width="506.391"> <window.resources> <collectionviewsource x:key="vsmaster" source="{binding parts}"/> <collectionviewsource x:key="vsdetail1" source="{binding parties_v1, source={staticresource vsmaster}}" /> </window.resources> <stackpanel> <datagrid x:name="datagridmaster" autogeneratecolumns="true" enablerowvirtualization="true" itemssource="{binding source={staticresource vsmaster}}" rowdetailsvisibilitymode="visiblewhenselected"></datagrid> <button content="updatepart" click="button_click"/> <datagrid x:name="datagriddetail1" margin="0 10 0 0" isreadonly="true" selectionmode="single" autogeneratecolumns="true" enablerowvirtualization="true" itemssource="{binding source={staticresource vsdetail1}}" issynchronizedwithcurrentitem="true" rowdetailsvisibilitymode="visiblewhenselected"/> </stackpanel> </window> using system; using system.collections.objectmodel; using system.collections.generic; using system.linq; using system.text; using system.threading.tasks; using system.windows; using system.windows.controls; using system.windows.data; using system.windows.documents; using system.windows.input; using system.windows.media; using system.windows.media.imaging; using system.windows.shapes; namespace wpfresources._32691328 { /// <summary> /// interaction logic win32691328.xaml /// </summary> public partial class win32691328 : window { public win32691328() { initializecomponent(); this.datacontext = new datastore(); } private void button_click(object sender, routedeventargs e) { list<parties_v1> p = new list<parties_v1>(); p.add(new parties_v1() { id = -1999 }); p.add(new parties_v1() { id = -1785 }); p.add(new parties_v1() { id = -1123 }); observablecollection<part> parts = (observablecollection<part>)((listcollectionview)datagridmaster.itemssource).sourcecollection; parts[0].parties_v1 = p; ((listcollectionview)datagridmaster.itemssource).refresh(); } } } using system; using system.collections.objectmodel; using system.collections.generic; using system.linq; using system.text; using system.threading.tasks; namespace wpfresources._32691328 { public class datastore { observablecollection<part> _parts; public observablecollection<part> parts { { return _parts; } set { _parts = value; } } public datastore() { list<parties_v1> p1 = new list<parties_v1>(); p1.add(new parties_v1() { id = 1999 }); p1.add(new parties_v1() { id = 1785 }); p1.add(new parties_v1() { id = 1123 }); list<parties_v1> p2 = new list<parties_v1>(); p2.add(new parties_v1() { id = 289 }); p2.add(new parties_v1() { id = 2644 }); p2.add(new parties_v1() { id = 2321 }); list<parties_v1> p3 = new list<parties_v1>(); p3.add(new parties_v1() { id = 3754 }); p3.add(new parties_v1() { id = 37543 }); p3.add(new parties_v1() { id = 31333 }); _parts = new observablecollection<part>(); _parts.add(new part(1, "123", "1abc", 111, p1)); _parts.add(new part(5, "3453", "2abc", 111, p2)); _parts.add(new part(7, "13433", "3abc", 111, p3)); _parts.add(new part(8, "2223", "4abc", 111, p1)); _parts.add(new part(10, "155553", "5abc", 111, p3)); _parts.add(new part(11, "122223", "6abc", 111, p2)); } } public class part { public part(int id, string pnumber, string owner, int? priceid, list<parties_v1> lparties) { id = id; part_number = pnumber; owner = owner; price_id = priceid; parties_v1 = lparties; } public int id { get; set; } public string part_number { get; set; } public string owner { get; set; } public int? price_id { get; set; } public list<parties_v1> parties_v1 { get; set; } } public class parties_v1 { public int id { get; set; } } } ** new answer vm support **
<window x:class="wpfresources._32691328.win32691328" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" title="win32691328" height="661.015" width="506.391"> <stackpanel> <datagrid x:name="datagridmaster" autogeneratecolumns="true" enablerowvirtualization="true" rowdetailsvisibilitymode="visiblewhenselected" /> <button content="updatepart" click="button_click"/> <datagrid x:name="datagriddetail" margin="0 10 0 0" isreadonly="true" selectionmode="single" autogeneratecolumns="true" enablerowvirtualization="true" issynchronizedwithcurrentitem="true" rowdetailsvisibilitymode="visiblewhenselected"/> </stackpanel> </window> using system; using system.collections; using system.collections.objectmodel; using system.collections.generic; using system.windows; using system.windows.controls; using system.windows.data; namespace wpfresources._32691328 { /// <summary> /// interaction logic win32691328.xaml /// </summary> public partial class win32691328 : window { datastore d; public win32691328() { initializecomponent(); d = new datastore(); this.datacontext = d; // bind itemssource of both grids binding bi1 = new binding(); bi1.source = d.partsview; bi1.mode = bindingmode.oneway; bindingoperations.setbinding(datagridmaster, datagrid.itemssourceproperty, bi1); binding bi2 = new binding(); bi2.source = d.partiesdetailview; bi2.mode = bindingmode.oneway; bindingoperations.setbinding(datagriddetail, datagrid.itemssourceproperty, bi2); } private void button_click(object sender, routedeventargs e) { d.change(); } } } using system; using system.componentmodel; using system.collections.objectmodel; using system.collections.generic; using system.windows.data; namespace wpfresources._32691328 { public class datastore { observablecollection<part> _parts; public observablecollection<part> parts { { return _parts; } set { _parts = value; } } collectionviewsource _partsviewmaster; public collectionviewsource partsview { { return _partsviewmaster; } } collectionviewsource _partsdetailview; public collectionviewsource partiesdetailview { { return _partsdetailview; } } public datastore() { _partsviewmaster = new collectionviewsource(); _partsdetailview = new collectionviewsource(); list<parties_v1> p1 = new list<parties_v1>(); p1.add(new parties_v1() { id = 1999 }); p1.add(new parties_v1() { id = 1785 }); p1.add(new parties_v1() { id = 1123 }); list<parties_v1> p2 = new list<parties_v1>(); p2.add(new parties_v1() { id = 289 }); p2.add(new parties_v1() { id = 2644 }); p2.add(new parties_v1() { id = 2321 }); list<parties_v1> p3 = new list<parties_v1>(); p3.add(new parties_v1() { id = 3754 }); p3.add(new parties_v1() { id = 37543 }); p3.add(new parties_v1() { id = 31333 }); _parts = new observablecollection<part>(); _parts.add(new part(1, "123", "1abc", 111, p1)); _parts.add(new part(5, "3453", "2abc", 111, p2)); _parts.add(new part(7, "13433", "3abc", 111, p3)); _parts.add(new part(8, "2223", "4abc", 111, p1)); _parts.add(new part(10, "155553", "5abc", 111, p3)); _parts.add(new part(11, "122223", "6abc", 111, p2)); binding bc1 = new binding("parts"); bc1.source = this; bindingoperations.setbinding(_partsviewmaster, collectionviewsource.sourceproperty, bc1); binding bc2 = new binding("parties_v1"); bc2.source = _partsviewmaster; bindingoperations.setbinding(_partsdetailview, collectionviewsource.sourceproperty, bc2); } public void change() { // changes list<parties_v1> p = new list<parties_v1>(); p.add(new parties_v1() { id = -1999 }); p.add(new parties_v1() { id = -1785 }); p.add(new parties_v1() { id = -1123 }); _parts[0].parties_v1 = p; // recreate view _partsviewmaster.view.refresh(); } } public class part { public part(int id, string pnumber, string owner, int? priceid, list<parties_v1> lparties) { id = id; part_number = pnumber; owner = owner; price_id = priceid; parties_v1 = lparties; } public int id { get; set; } public string part_number { get; set; } public string owner { get; set; } public int? price_id { get; set; } list<parties_v1> _parties = new list<parties_v1>(); public list<parties_v1> parties_v1 { { return _parties; } set { _parties = value; } } } public class parties_v1 { public int id { get; set; } } } 
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