I have a window called "DashBoard" window. This window appears after user sucessfully logs in. Now I wanted to open child window called "Memberlist"inside the Dashboard when user select an option from menu item. User should not be able to pullout "Memberlist" window from "Dashboard" window.
<Window x:Class="MyProject.DashboardView"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="My Project: Dashboard" Height="600" Width="800" WindowState="Maximized"
WindowStartupLocation="CenterOwner">
<Grid>
<Menu Height="23" HorizontalAlignment="Left" Name="menu1" VerticalAlignment="Top"
Width="44">
<MenuItem Header="_File" >
<MenuItem Header="View Memberlist…" Command="{Binding
Path=DisplayMemberlistCommand}" />
</MenuItem>
</Menu>
</Grid>
</Window>
<Window x:Class="MyProject.MemberlistView"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:toolkit="http://schemas.microsoft.com/wpf/2008/toolkit"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="View Memberlist" Height="400" Width="806">
<Grid>
<Grid Height="383" Width="1179">
<toolkit:DataGrid x:Name="dgMemberlist"
ItemsSource="{Binding Path=MemberList}"
AutoGenerateColumns="False" Margin="21,57,422,106"
SelectedItem="{Binding Path=SelectedMemberItem,
UpdateSourceTrigger=PropertyChanged}">
<toolkit:DataGrid.Columns>
<toolkit:DataGridTextColumn Header="Export ID" Width="100"
Binding="{Binding MemberfullName}" IsReadOnly="True" />
</toolkit:DataGrid.Columns>
</toolkit:DataGrid>
</Grid>
</Grid>
</Window>
private ICommand _displayMemberlistCommand;
public ICommand DisplayMemberlistCommand
{
get
{
if (_displayMemberlistCommand == null)
_displayMemberlistCommand = new RelayCommand(a=>DoDisplayMemberlist(),
p=>true);
return _displayMemberlistCommand;
}
set
{
_displayMemberlistCommand = value;
}
}
private void DoDisplayMemberlist()
{
DashboardView dv = new DashboardView();
MemberlistView mlWindow = new MemberlistView ();
mlWindow.Owner = Application.Current.MainWindow;
mlWindow .Show();
}
I would recommend not referencing the Views in the ViewModel. Instead, create a MemberListViewModel
, and use a DataTemplate
to display it.
So your DashBoardViewModel
would have a
ViewModelBase CurrentView {get; set;}
property, and on ShowMemberListCommand
simply sets
CurrentView = new MemberListViewModel();
Your DashboardView
would contain
<ContentControl Content="{Binding CurrentView}">
<ContentControl.Resources>
<DataTemplate DataType="{x:Type local:MemberViewModel}">
<local:MemberView />
</DataTemplate>
</ContentControl.Resources>
</ContentControl>
As long as CurrentView
is null
, the control is never visible. Once you execute the command to show the MemberView
, CurrentView
gets set to a MemberViewModel
and the ContentControl gets populated
Since I did not know the technical term, it took me longer to find solution. I was refereeing to MDI (Multiple Document Interface). I found very good example with sample code on this URL http://wpfmdi.codeplex.com/
使MemberListView成为UserControl而不是Window,然后单击菜单将其添加到主窗口内容中。
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