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GeneralRe: WPF Tab Styling Question #2 Pin
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QuestionWPF TabItem Styling Question Pin
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QuestionMVVM:How to bind the MenuItem Command of ListBoxItem ContextMenu dynamically? Pin
Member 137073829-Dec-12 1:58
memberMember 137073829-Dec-12 1:58 
<pre lang="text">


1.How to bind the MenuItem Command of ListBoxItem ContextMenu dynamically?
2. How to set its CommandParameter?

//----------------------------------
//MainWindowView.xaml
//----------------------------------

<Window x:Class="MVVM.Views.MainWindowView"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:i="http://schemas.microsoft.com/expression/2010/interactivity"
xmlns:vm="clr-namespace:MVVM.ViewModels"
Title="MainView" Height="354" Width="520">

<Window.DataContext>
<vm:MainWindowViewModel/>
</Window.DataContext>

<Grid>

<!--In this ListBox, the MenuItem command can not be called-->
<ListBox Height="252" HorizontalAlignment="Left" Margin="12,51,0,0" Name="listBox1" VerticalAlignment="Top" Width="201"
ItemsSource="{Binding Path=TestItems}">

<ListBox.ItemTemplate>

<DataTemplate>
<TextBlock Text="{Binding}" Width="150">
<TextBlock.ContextMenu>
<ContextMenu>
<MenuItem Header="Call Command1" >
<i:Interaction.Triggers>
<i:EventTrigger EventName="Click">
<i:InvokeCommandAction Command="{Binding Command1}" CommandParameter="???"/><!--here the Command1 not be called-->
</i:EventTrigger> <!--how to set command parameter to this ListBoxItem displaying text?-->
</i:Interaction.Triggers>
</MenuItem>
</ContextMenu>
</TextBlock.ContextMenu>
</TextBlock>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>

<!--In this ListBox, the menuitem command can be called,
but the command parameter can not be set correctly-->
<ListBox Height="252" HorizontalAlignment="Left" Margin="230,51,0,0" Name="listBox2" VerticalAlignment="Top" Width="229"
SelectedItem="{Binding SelectedText,Mode=OneWayToSource}">
<ListBoxItem>
<TextBlock Text="item1" Name="tb" />
<ListBoxItem.ContextMenu>
<ContextMenu>
<MenuItem Header="Call Comand1">
<i:Interaction.Triggers>
<i:EventTrigger EventName="Click">

<!--this one can be called correctly,
but the command parameter can not be set correctly-->
<i:InvokeCommandAction Command="{Binding Command1}" CommandParameter="{Binding ElementName=tb,Path=Text}" />
</i:EventTrigger>
</i:Interaction.Triggers>
</MenuItem>
</ContextMenu>
</ListBoxItem.ContextMenu>
</ListBoxItem>

<ListBoxItem>
<TextBlock Text="item2"/>
<ListBoxItem.ContextMenu>
<ContextMenu>
<MenuItem Header="Call Comand1">
<i:Interaction.Triggers>
<i:EventTrigger EventName="Click">
<i:InvokeCommandAction Command="{Binding Command1}" CommandParameter="" />
</i:EventTrigger>
</i:Interaction.Triggers>
</MenuItem>
</ContextMenu>
</ListBoxItem.ContextMenu>
</ListBoxItem>
</ListBox>
<Label Content="This one can not work" Height="28" HorizontalAlignment="Left" Margin="12,25,0,0" Name="label1" VerticalAlignment="Top" />
<Label Content="This one can work" Height="28" HorizontalAlignment="Left" Margin="230,25,0,0" Name="label2" VerticalAlignment="Top" />
<Label Content="Test ListBox ContextMenu" Height="28" HorizontalAlignment="Left" Margin="12,0,0,0" Name="label3" VerticalAlignment="Top" />
</Grid>
</Window>

//------------------
//MainWindowViewModel.cs
//---------------

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Input;
using System.Windows;
using System.Windows.Controls;
using MVVM.Command;

namespace MVVM.ViewModels
{
public class MainWindowViewModel : ViewModelBase
{
public List<string> TestItems
{
get
{
return new List<string>()
{
"Item1",
"Item2",
"Item3"
};
}
}

public ListBoxItem SelectedText
{
get;
set;
}
public MainWindowViewModel()
{

}

private ICommand _command1;
public ICommand Command1
{
get
{
if(null==_command1)
{
_command1 = new DelegateCommand<string>((str) =>
{
MessageBox.Show("Command1 with parameter:" + str+((TextBlock)SelectedText.Content).Text);
});
}
return _command1;
}
}
ICommand _command2;
public ICommand Command2
{
get
{
if (null == _command2)
{
_command2 = new DelegateCommand<Button>((button) =>
{
if (null == button)
return;
Point p = Mouse.GetPosition(button);
button.Content = string.Format("{0},{1}", p.X, p.Y);
});
}
return _command2;
}
}

}
}
</pre>
AnswerRe: MVVM:How to bind the MenuItem Command of ListBoxItem ContextMenu dynamically? Pin
SledgeHammer0129-Dec-12 7:22
memberSledgeHammer0129-Dec-12 7:22 
GeneralRe: MVVM:How to bind the MenuItem Command of ListBoxItem ContextMenu dynamically? Pin
Member 137073829-Dec-12 15:44
memberMember 137073829-Dec-12 15:44 
GeneralRe: MVVM:How to bind the MenuItem Command of ListBoxItem ContextMenu dynamically? Pin
SledgeHammer0129-Dec-12 16:26
memberSledgeHammer0129-Dec-12 16:26 
GeneralRe: MVVM:How to bind the MenuItem Command of ListBoxItem ContextMenu dynamically? Pin
Member 137073829-Dec-12 17:00
memberMember 137073829-Dec-12 17:00 
GeneralRe: MVVM:How to bind the MenuItem Command of ListBoxItem ContextMenu dynamically? Pin
SledgeHammer0129-Dec-12 17:25
memberSledgeHammer0129-Dec-12 17:25 
GeneralRe: MVVM:How to bind the MenuItem Command of ListBoxItem ContextMenu dynamically? Pin
Member 137073829-Dec-12 19:02
memberMember 137073829-Dec-12 19:02 
Questionmm Pin
Aishwarya aishu28-Dec-12 0:44
memberAishwarya aishu28-Dec-12 0:44 
AnswerRe: mm Pin
Richard MacCutchan28-Dec-12 5:59
mvpRichard MacCutchan28-Dec-12 5:59 
Generalsiverlight Pin
Aishwarya aishu28-Dec-12 0:42
memberAishwarya aishu28-Dec-12 0:42 
GeneralRe: siverlight Pin
Richard MacCutchan28-Dec-12 5:57
mvpRichard MacCutchan28-Dec-12 5:57 
QuestionDataTrigger bind to a Property Pin
mbv80023-Dec-12 17:01
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AnswerRe: DataTrigger bind to a Property Pin
Pete O'Hanlon23-Dec-12 19:17
protectorPete O'Hanlon23-Dec-12 19:17 
AnswerRe: DataTrigger bind to a Property Pin
Wayne Gaylard23-Dec-12 19:39
mentorWayne Gaylard23-Dec-12 19:39 
QuestionWPF Adorner Issues Pin
John Simmons / outlaw programmer17-Dec-12 10:52
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AnswerRe: WPF Adorner Issues Pin
SledgeHammer0118-Dec-12 4:49
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GeneralRe: WPF Adorner Issues Pin
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GeneralRe: WPF Adorner Issues Pin
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