wpf - Get TextBox Value in ViewModel -
anyone 1 please tell me example ,how textbox value in view model, model property binding textbox mode 2 way
this view model functions, want add new record observable collection.
c#
public void addperson() { // add new record } private model.person _persondata; public model.person persondata { { if(_persondata==null) { _persondata = new person(); } return _persondata; } set { setproperty(ref this._persondata, value); } } xaml
<controls:metrowindow xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:controls="clr-namespace:mahapps.metro.controls;assembly=mahapps.metro" xmlns:vm="clr-namespace:demo.viewmodel" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:model="clr-namespace:demo.model" mc:ignorable="d" x:class="demo.mainwindow" title="mainwindow" height="438" width="664" glowbrush="{dynamicresource accentcolorbrush}" windowstartuplocation="centerscreen"> <controls:metrowindow.resources> <model:person x:key="persondatasource" d:isdatasource="true"/> <vm:mainviewmodel x:key="mainviewmodeldatasource" d:isdatasource="true"/> </controls:metrowindow.resources> <controls:metrowindow.rightwindowcommands> <controls:windowcommands> <!--<button content="settings" />--> <button> <stackpanel orientation="horizontal"> <rectangle width="20" height="20" fill="{binding foreground, relativesource={relativesource ancestortype={x:type button}}}"> <rectangle.opacitymask> <visualbrush stretch="fill" visual="{staticresource appbar_futurama_fry}" /> </rectangle.opacitymask> </rectangle> <textblock margin="4 0 0 0" verticalalignment="center" text="karthik" /> </stackpanel> </button> </controls:windowcommands> </controls:metrowindow.rightwindowcommands> <grid datacontext="{binding source={staticresource mainviewmodeldatasource}}"> <grid.background> <lineargradientbrush endpoint="0.5,1" startpoint="0.5,0"> <gradientstop color="#fff3f3f3" offset="0"/> <gradientstop color="#fffbf9f9" offset="1"/> <gradientstop color="#fff7f6f6" offset="0.555"/> </lineargradientbrush> </grid.background> <border borderthickness="3" horizontalalignment="left" height="388" margin="10,10,0,0" verticalalignment="top" width="636" cornerradius="3"> <border.background> <lineargradientbrush endpoint="0.168,0.166" startpoint="0.168,0.08"> <gradientstop color="#ff39d5ff" offset="0"/> <gradientstop color="white"/> </lineargradientbrush> </border.background> <label content="master details" margin="10,1,502,352" fontweight="bold" foreground="white"/> </border> <border borderbrush="#ffc7c2c2" borderthickness="1" horizontalalignment="left" height="238" margin="21,100,0,0" verticalalignment="top" width="187" cornerradius="3"> <border.background> <lineargradientbrush endpoint="0.433,0.407" startpoint="0.435,0.134"> <gradientstop color="#29c5ff" offset="0"/> <gradientstop color="white"/> </lineargradientbrush> </border.background> </border> <border borderbrush="#ffc7c2c2" borderthickness="1" horizontalalignment="left" height="239" margin="227,100,0,0" verticalalignment="top" width="405" cornerradius="3"> <border.background> <lineargradientbrush endpoint="0.435,0.378" startpoint="0.435,0.134"> <gradientstop color="#29c5ff" offset="0"/> <gradientstop color="white"/> </lineargradientbrush> </border.background> <button content="delete" margin="211,189,41,21" width="149" height="21"/> </border> <label content="new" horizontalalignment="left" height="29" margin="37,103,0,0" verticalalignment="top" width="87" foreground="white"/> <label content="update" horizontalalignment="left" height="25" margin="246,105,0,0" verticalalignment="top" width="98" foreground="white"/> <textbox horizontalalignment="left" height="25" margin="37,150,0,0" textwrapping="wrap" text="{binding path=name,mode=twoway,updatesourcetrigger=propertychanged}" verticalalignment="top" width="149" datacontext="{binding source={staticresource persondatasource}}"/> <textbox horizontalalignment="left" height="19" margin="37,197,0,0" textwrapping="wrap" text="{binding path=id,mode=twoway,updatesourcetrigger=propertychanged}" verticalalignment="top" width="149" datacontext="{binding source={staticresource persondatasource}}"/> <button content="update" horizontalalignment="left" height="24" margin="37,291,0,0" verticalalignment="top" width="149"/> <button command="{binding _addcommand}" content="edit" horizontalalignment="left" height="21" margin="272,291,0,0" verticalalignment="top" width="149"/> <listview horizontalalignment="left" height="120" margin="246,150,0,0" verticalalignment="top" width="366" itemssource="{binding masterdata}"> <listview.view> <gridview> <gridviewcolumn header="name" width="120"> <gridviewcolumn.celltemplate> <datatemplate> <textblock text="{binding name}" textwrapping="wrap"/> </datatemplate> </gridviewcolumn.celltemplate> </gridviewcolumn> <gridviewcolumn header="id" width="120"> <gridviewcolumn.celltemplate> <datatemplate> <textblock text="{binding id}" textwrapping="wrap"/> </datatemplate> </gridviewcolumn.celltemplate> </gridviewcolumn> <gridviewcolumn header="location" width="125"> <gridviewcolumn.celltemplate> <datatemplate> <textblock text="{binding location}" textwrapping="wrap"/> </datatemplate> </gridviewcolumn.celltemplate> </gridviewcolumn> </gridview> </listview.view> </listview> <textbox horizontalalignment="left" height="19" margin="37,241,0,0" textwrapping="wrap" text="{binding path=location,mode=twoway,updatesourcetrigger=propertychanged}" verticalalignment="top" width="149" datacontext="{binding source={staticresource persondatasource}}"/> </grid> </controls:metrowindow>
since not use code snippet reproduce issue accurately. have made simple code sample achieve target described. believe useful information form , check code solve problem.
<grid> <grid.columndefinitions> <columndefinition> </columndefinition> <columndefinition> </columndefinition> </grid.columndefinitions> <stackpanel grid.column="0"> <textbox text="{binding name,mode=twoway}"></textbox> <textbox text="{binding id,mode=twoway}"></textbox> <textbox text="{binding location,mode=twoway}"></textbox> <button content="add new" command="{binding addnew}"></button> </stackpanel> <listview itemssource="{binding persons}" grid.column="1"> <listview.itemtemplate> <datatemplate> <stackpanel> <textblock text="{binding name}"></textblock> <textblock text="{binding id}" margin="10 0 0 0"></textblock> <textblock text="{binding location}" margin="20 0 0 0"></textblock> </stackpanel> </datatemplate> </listview.itemtemplate> </listview> </grid> mainviewmodel.cs
class mainviewmodel:viewmodelbase { public observablecollection<personmodel> persons { get; set; } private string _name; public string name { { return _name; } set { _name = value; raisepropertychanged("name"); } } private string _id; public string id { { return _id; } set { _id = value; raisepropertychanged("id"); } } private string _location; public string location { { return _location; } set { _location = value; raisepropertychanged("location"); } } public relaycommand addnew { get; set; } public mainviewmodel() { persons = new observablecollection<personmodel>(); persons.add(new personmodel() {name="test1",id="123",location="u.s." }); addnew = new relaycommand(addnewperson); } private void addnewperson() { personmodel p = new personmodel() {name=name,id=id,location=location }; persons.add(p); } } personmodel.cs
class personmodel { public string name { get; set; } public string id { get; set; } public string location { get; set; } } 
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