Mvvm: How to bind data to a list

Use mvvm to bind a data source to a gridview

Is the telerik Control

1. defined entity docregister

Observablecollection <docregister> _ datasouce;

2. Define Object Attributes
Public observablecollection <docregister> datasouce
{
Get {return _ datasouce ;}
Set
{
If (! Referenceequals (_ datasouce, value ))
{
_ Datasouce = value;
This. raisepropertychanged () => This. datasouce );
}
}
}
3. Remember that the current class inherits from icationicationobject

4. All namespaces:
Using system;
Using system. net;
Using system. windows;
Using system. Windows. controls;
Using system. Windows. documents;
Using system. Windows. Ink;
Using system. Windows. input;
Using system. Windows. Media;
Using system. Windows. Media. animation;
Using system. Windows. shapes;
Using Microsoft. Practices. Prism. viewmodel;
Using system. Collections. objectmodel;
Using Microsoft. Practices. Prism. commands;

5. When constructing a function, use WCF to transmit data from the server.

Public docregisternavigateviewmodel ()
{
Client = innerhelper. createdocregistermanageserviceclient ();
Client. getdocregisterlistcompleted + = new eventhandler <getdocregisterlistcompletedeventargs> (client_getdocregisterlistcompleted );
// When can I call WCF?
Client. getdocregisterlistasync ("","");
}

Void client_getdocregisterlistcompleted (Object sender, getdocregisterlistcompletedeventargs E)
{
If (E. Error = NULL)
{
// Return results
Datasouce = E. result;
}
Else
{
Glodon. component. Controls. dialoghelper. alertdialog ("failed to get data! "," Prompt ");
}
}
6. Click View registered events on the page.
Private icommand _ lookcommand;
Public icommand lookcommand
{
Get {return _ lookcommand ?? (_ Lookcommand = new delegatecommand <Object> (this. onlookcommand ));}
}

7. When you click "View" to view the connection of each line, pass the value to the past (create a new page and pass the selected row value to the past)
Private void onlookcommand (Object OBJ)
{
If (currentitem! = NULL)
{
Adddocregister editwindow = new adddocregister (currentitem );
Editwindow. Show ();
}
}
8. XAML file: Pay attention to the use of command

<TR: radgridview horizontalalignment = "Left" name = "radgridview" verticalignment = "TOP" itemssource = "{binding datasouce, mode = twoway}" selecteditem = "{binding currentitem, mode = twoway }"
Autogeneratecolumns = "false" showgrouppanel = "false" grid. Row = "1">
<TR: radgridview. Columns>

<TR: gridviewcolumn header = "View" width = "60" headertextalignment = "center">
<TR: gridviewcolumn. celltemplate>
<Datatemplate>
<Hyperlinkbutton name = "viewbutton" tag = "{binding docregisteradministrativeid}" content = "View" command = "{binding source = {staticresource datacontextproxy}, Path = datasource. lookcommand} "commandparameter =" {binding elementname = viewbutton} "/>
</Datatemplate>
</TR: gridviewcolumn. celltemplate>
</TR: gridviewcolumn>

<TR: gridviewdatacolumn isreadonly = "true" header = "no." isfilterable = "false" width = "60" textalignment = "center" headertextalignment = "center"/>
<TR: gridviewdatacolumn isreadonly = "true" datamemberbinding = "{binding receiptdate, mode = oneway} "header =" recipient date "isfilterable =" false "width =" 150 "headertextalignment =" center "/>
<TR: gridviewdatacolumn isreadonly = "true" datamemberbinding = "{binding dnumber, mode = oneway} "header =" "isfilterable =" false "width =" 120 "headertextalignment =" center "/>
<TR: gridviewdatacolumn isreadonly = "true" datamemberbinding = "{binding dFrom, mode = oneway} "header =" Communications Authority "isfilterable =" false "width =" * "headertextalignment =" center "/>
<TR: gridviewdatacolumn isreadonly = "true" datamemberbinding = "{binding dtitle, mode = oneway} "header =" file title "isfilterable =" false "width =" * "headertextalignment =" center "/>
<TR: gridviewdatacolumn isreadonly = "true" datamemberbinding = "{binding dconfidentialityid, mode = oneway} "header =" confidential level "isfilterable =" false "width =" 60 "headertextalignment =" center "/>
<TR: gridviewdatacolumn isreadonly = "true" datamemberbinding = "{binding filecount, mode = oneway} "header =" number of parts in the body "isfilterable =" false "width =" 60 "headertextalignment =" center "/>
<TR: gridviewdatacolumn isreadonly = "true" datamemberbinding = "{binding attachmentcount, mode = oneway} "header =" Number of attachments "isfilterable =" false "width =" 60 "headertextalignment =" center "/>
<TR: gridviewdatacolumn isreadonly = "true" datamemberbinding = "{binding dstate, mode = oneway} "header =" status "isfilterable =" false "width =" 80 "headertextalignment =" center "/>
</TR: radgridview. Columns>
</TR: radgridview>

(1) datacontextproxy has such a line of code at the beginning of the page. CS file, which can be used under the current XAML File
<Usercontrol. Resources>
<Helper: datacontextproxy X: Key = "datacontextproxy"/>
</Usercontrol. Resources>

Datacontextproxy Definition

using System;using System.Net;using System.Windows;using System.Windows.Controls;using System.Windows.Documents;using System.Windows.Ink;using System.Windows.Input;using System.Windows.Media;using System.Windows.Media.Animation;using System.Windows.Shapes;using System.Windows.Data;namespace Glodon.Module.DocRegisterManage.Help{    public class DataContextProxy : FrameworkElement    {        public DataContextProxy()        {            this.Loaded += new RoutedEventHandler(DataContextProxy_Loaded);        }        void DataContextProxy_Loaded(object sender, RoutedEventArgs e)        {            Binding binding = new Binding();            if (!String.IsNullOrEmpty(BindingPropertyName))            {                binding.Path = new PropertyPath(BindingPropertyName);            }            binding.Source = this.DataContext;            binding.Mode = BindingMode;            this.SetBinding(DataContextProxy.DataSourceProperty, binding);        }        public Object DataSource        {            get { return (Object)GetValue(DataSourceProperty); }            set { SetValue(DataSourceProperty, value); }        }        public static readonly DependencyProperty DataSourceProperty =            DependencyProperty.Register("DataSource", typeof(Object), typeof(DataContextProxy), null);        public string BindingPropertyName { get; set; }        public BindingMode BindingMode { get; set; }    }}

9. The main step is to bind the viewmodel with the page
During the initialization of the XAML page, specify a viewmodel: docregisternavigateviewmodel for the current context datacontext Of The XAML.

Public partial class docregisternavigateview: usercontrol
{
Public docregisternavigateview ()
{
Initializecomponent ();
This. datacontext = new docregisternavigateviewmodel ();
}
}