現在、MVVMでsilverlight5を使用しています。SL5では、次のことを行う必要があります。xaml(デザインページ)に3つのテキストボックスと1つのボタンコントロールとデータグリッドがあります。
ここにデザインビュー（Xaml）があります：
<UserControl.DataContext>
<VC:EmployeeListViewModel />
</UserControl.DataContext>
<Grid x:Name="LayoutRoot">
<my:DataGrid x:Name="McDataGrid" ItemsSource="{Binding Employees,UpdateSourceTrigger=PropertyChanged}" Margin="130,151,0,0" Height="137" VerticalAlignment="Top" RowBackground="#AA5D9324" AutoGenerateColumns="True" HorizontalAlignment="Left" Width="193">
</my:DataGrid>
<Button Content="Show Message" Width="100" Height="25" Margin="256,75,0,0" VerticalAlignment="Top" HorizontalAlignment="Left">
<i:Interaction.Triggers>
<i:EventTrigger EventName="Click">
<si:CallDataMethod Method="AddEmployeeCommand"/>
<si:ShowMessageBox Caption="Thank you"
Message="Thanks for trying the Example"
MessageBoxButton="OK"/>
<si:SetProperty TargetName="LayoutRoot"
PropertyName="Background" Value="PaleGoldenrod"/>
</i:EventTrigger>
</i:Interaction.Triggers>
</Button>
<TextBlock FontWeight="Bold" Height="26" HorizontalAlignment="Left" Margin="47,12,0,0" Name="textBlock1" Text="First Name:" VerticalAlignment="Top" Width="77" />
<TextBox Height="23" HorizontalAlignment="Left" Margin="130,12,0,0" Name="textBox1" VerticalAlignment="Top" Width="120" Text="{Binding Path=Employee.Fname}" />
<TextBlock FontWeight="Bold" Height="25" HorizontalAlignment="Left" Margin="35,44,0,0" Name="textBlock2" Text="Second Name:" VerticalAlignment="Top" />
<TextBox Height="23" HorizontalAlignment="Left" Margin="130,44,0,0" Name="textBox2" VerticalAlignment="Top" Width="120" />
<TextBlock FontWeight="Bold" Height="23" HorizontalAlignment="Left" Margin="45,75,0,0" Name="textBlock3" Text="Department:" VerticalAlignment="Top" />
<TextBox Height="23" HorizontalAlignment="Left" Margin="130,75,0,0" Name="textBox3" VerticalAlignment="Top" Width="120" />
<!-- Add reference to Microsoft.Expression.Interactions.dll, System.Windows.Interactivity.dll -->
<!-- Use mvvmxmlns snippet to add i and ei namespace prefixes -->
</ComboBox>
<TextBlock Height="23" HorizontalAlignment="Left" Margin="64,122,0,0" Name="textBlock4" Text="Choose:" VerticalAlignment="Top" FontWeight="Bold" />
</Grid>
</UserControl>
同じプロジェクトで、「ViewModel」という名前のフォルダーを 1 つ作成します。同じフォルダーに、EmployeeListViewModel.cs という名前のクラス ファイルを 1 つ追加します。
私の質問はこれです。テキストボックスの値をviewmodel[EmployeeListViewModel]に渡し、それをDatagridに挿入する方法。
EmployeeListViewModel.cs:
public class EmployeeListViewModel:INotifyPropertyChanged
{
public ObservableCollection<Employee> Employees { get; private set; }
public EmployeeListViewModel()
{
Employees = Silverlight_MVVM.DataHelper.EmployeeDataHelper.EmployeeData ();
}
private Employee _SelectedEmployee;
public Employee SelectedEmployee
{
get
{
return _SelectedEmployee;
}
set
{
_SelectedEmployee = value;
RaisePropertyChanged("SelectedEmployee");
}
}
private Employee _Names;
public Employee Names
{
get
{
return _Names;
}
set
{
_Names = value;
RaisePropertyChanged("Names");
}
}
public void HandleShowMessage()
{
// MessageBox.Show("Hello " + Names + ",Welcome to EventTrigger for MVVM.");
}
public RelayCommand _AddEmployeeCommand;
/// <summary>
/// Returns a command that show the customer.
/// </summary>
public ICommand AddEmployeeCommand
{
get
{
if (_AddEmployeeCommand == null)
{
_AddEmployeeCommand = new RelayCommand(
param => this.AddEmployee(),
param => this.CanAddEmployee
);
}
return _AddEmployeeCommand;
}
}
public bool CanAddEmployee
{
get
{
return true;
}
}
public void AddEmployee()
{
//Employee newEmployee = new Employee("New1);
Employee newEmployee = new Employee() **{};**
--> **Here i have to pass the value.. How is it possible..?**
Employees.Add(newEmployee);
SelectedEmployee = newEmployee;
}
#region INotifyPropertyChanged
// [field: NonSerialized]
public event PropertyChangedEventHandler PropertyChanged;
protected void RaisePropertyChanged(string propertyName)
{
var handler = PropertyChanged;
if (handler != null)
{
handler(this, new PropertyChangedEventArgs(propertyName));
}
}
#endregion
}