WPF

Michael Eber wrote:

<Grid x:Name="locationContainer" Margin="291,16,0,29" IsHitTestVisible="False">

hb52134214 wrote:

this approach does not allow handling routed commands or creating command bindings

hb52134214 wrote:

complicates the application design if more than one UI element needs to refer to the model item

hb52134214 wrote:

I really want the UI cleanly separated from the model

<HDT x:Key="pItem" DT="{x:Type c:Project}" IS="{Binding Children}">
  <TextBlock Text="{Binding Name}" />
</HDT>
<HTD x:Key="fItem" DT="{x:Type c:File}" IS="{Binding Children}">
  <TextBlock Text="{Binding Name}" />
</HDT>
<HTD x:Key="other" DT="{x:Type c:Project}" IS="{Binding Children}">
  <TextBlock Text="{Binding Name}" />
</HDT>

<CommandBindings>
   <CommandBinding Command="{x:Static c:Cmds.SaveFile}" CanExecute="CanSave" Execute="Save"/>
</CommandBindings>

hb52134214 wrote:

How does one attach a routed command handler in the template to get a node to respond to a SaveFile command.

hb52134214 wrote:

one has to implement two properties in the model: 'ItemIsSelected_TV1', and 'ItemIsSelected_TV2' and in the different TreeView's

{Binding ItemIsSelected[0]}
{Binding ItemIsSelected[1]}

{Binding ItemIsSelected[2]}

TV (tree view)
   obj 1
      obj 2

TV
   TVI_1
      TVI_1_header (obj1)
      TVI_1_items
         TVI_2
            TVI_2_header (obj2)
            TVI_2_items

TVI_2_header -> TVI_2 -> TVI_1_items -> TVI_1 -> TV -> ...

TVI_2 -> TVI_1_items -> TVI_1 -> TV -> ...

interface ICmdHandler {
   IEnumerable<CommandBinding> CommandBindings { get; }
}

class TVICommandForwarder : TreeViewItem {
   protected override void OnHeaderChanged(object oldHeader, object newHeader) {
      base.OnHeaderChanged(oldHeader, newHeader);
      ICmdHandler oldCH = oldHeader as ICmdHandler;
      ICmdHandler newCH = newHeader as ICmdHandler;
      if (oldCH != null)
         foreach (CommandBinding cb in oldCH.CommandBindings)
            CommandBindings.Remove(cb);
      if (newCH != null)
         foreach (CommandBinding cb in newCH.CommandBindings)
            CommandBindings.Add(cb);
   }
   protected override DependencyObject GetContainerForItemOverride() {
      return new TVICommandForwarder();
   }
}

class TVCommandForwarder : TreeView {
   protected override DependencyObject GetContainerForItemOverride() {
      return new TVICommandForwarder();
   }
}

Michael Eber wrote:

SelectedText = "{Binding {fieldName} Converter=myValueConverter, ConverterParameter=

Michael Eber wrote:

The second question, then, is Expression put the datacontext in a self-contained location within the grid followed by my fields. Do I have to extend the end tag to wrap my editor controls? Or is DataContext all wrong? I think I saw one guy use Data Template???

Michael Eber wrote:

ConvertParameter=0\d

<Grid Name="grid1" Width="278">
    <Grid.ColumnDefinitions>
       <ColumnDefinition Width="100"/>
       <ColumnDefinition Width="5"/>
       <ColumnDefinition Width="*"/>
    </Grid.ColumnDefinitions>
    <Grid.RowDefinitions>
       <RowDefinition/>
       <RowDefinition/>
    </Grid.RowDefinitions>
    <ListBox Name="listbox1" Grid.Column="0">
    </ListBox>
    <GridSplitter
       Name="gridsplitter1"
       Width="5"
       Grid.Column="1"
       Grid.RowSpan="2"
       HorizontalAlignment="Left"
       Margin="0"
       VerticalAlignment="Stretch"
       ResizeBehavior="PreviousAndNext"/>
    <RichTextBox Name="richtextbox1" Grid.Column="2"/>
    <TextBox Grid.Column="0" Grid.Row="1"/>
    <TextBox Grid.Column="2" Grid.Row="1"/>
 </Grid>