SL4PopupMenu Discussions Rss Feed

New Post: SL5 Support?

manish00gupta00 — Fri, 01 Mar 2013 07:32:16 GMT

I am too facing this problem - "child popup windows doesn't show right next to its parent, there is a horizontal gap of ~100 pixels."

New Post: why a Slider in menu can not Binding Background.Opacity of layoutRoot,but grdPopupMenu(a grid control)can

xj20305 — Mon, 07 Jan 2013 04:04:57 GMT

thanks

New Post: why a Slider in menu can not Binding Background.Opacity of layoutRoot,but grdPopupMenu(a grid control)can

xj20305 — Mon, 07 Jan 2013 04:04:32 GMT

hi,i have a issue,but my english is ugly.
why a Slider in menu can not Binding Background.Opacity of layoutRoot,but grdPopupMenu(a grid control)can
you know i want to change the Background.Opacity of layoutRoot
the main code as follow
xaml:
<UserControl
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d"
x:Class="PopupMenuApp.UserControl2"
d:DesignWidth="640" d:DesignHeight="480"
xmlns:my="clr-namespace:SL4PopupMenu;assembly=SL4PopupMenu"
>

<Grid x:Name="LayoutRoot" Background="#FFCB6969">
<Rectangle Fill="#FFF4F4F5" Height="98" Margin="146,108,182,0" Stroke="Black" VerticalAlignment="Top"/>
<my:PopupMenu x:Name="pmMain"
RightClickElements="LayoutRoot"
AccessShortcut="Ctrl+Alt+M"
AccessShortcutTargetElementName="LayoutRoot"
>



<Grid x:Name="grdPopupMenu" Background="#FFB01C99" >

<ListBox x:Name="lstPopupMenu" Margin="20,0,0,0" >
<my:PopupMenuItem x:Name="pmiCut" Header="Cut" Tag="ClipboardMenuTag" ImageSource="../images/Cut.png" />
<my:PopupMenuItem x:Name="pmiCopy" Header="Copy" Tag="ClipboardMenuTag" ImageSource="../images/Copy.png" />

<my:PopupMenuItem x:Name="pmiPaste" ImageSource="../images/Paste.png">
<TextBlock Text="Paste" Tag="ClipboardMenuTag"/>
</my:PopupMenuItem >
<my:PopupMenuSeparator Tag="ClipboardMenuTag"/>
<my:PopupMenuItem x:Name="pmiOrientableMenu" Header="Orientable Menu" CloseOnClick="False" ImageSource="../images/4_direction.png" ImageRightSource="../images/arrow.png" />
<my:PopupMenuSeparator/>
</ListBox>
</Grid>
</my:PopupMenu>
<Slider x:Name="stpTransparency" Height="35" VerticalAlignment="Center"
Value="{Binding Background.Opacity, ElementName=grdPopupMenu, Mode=TwoWay}" Maximum="1" HorizontalAlignment="Center" Width="200"/>

</Grid>
</UserControl>

csharp code behind:
using System;
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;

namespace PopupMenuApp
{
public partial class UserControl2 : UserControl
{
public UserControl2()
{
// 为初始化变量所必需
InitializeComponent();

pmMain.AddItem(stpTransparency).CloseOnClick = false;

}
}
}

New Post: SL5 Support?

skalkin — Fri, 27 Jul 2012 00:53:15 GMT

It compiles, but there are some glitches - for instance, child popup windows doesn't show right next to its parent, there is a horizontal gap of ~100 pixels.

New Post: ScrollViewer in Long PopupMenu

ZiadJ — Tue, 26 Jun 2012 12:33:02 GMT

Hi Hemant,

To get scrolling ability you can just add your items to a Listbox and enable its built in vertical scrollbar.

Cheers

Ziad

New Post: ScrollViewer in Long PopupMenu

hemant2701 — Tue, 26 Jun 2012 08:25:25 GMT

Hi Ziad,

I am using SL4 Popupmenu control. My Popup menu generates a long list of PopupMenuItem. You know browser Height is fixed hence few portion of PopupMenu is not visible. Is it possible to provide ScrollVeiwer so that User can scroll to the last PopupMenuitem in case Height of PopupMenu generated is greater than Browser Height.

Thanks & Regards,

Hemant

New Post: Icon is not displaying through code in PopupMenu in SL4 BA

hemant2701 — Tue, 26 Jun 2012 08:15:32 GMT

ZiadJ wrote:

I still haven't found a clean solution to the problem and all I could to do is make the code behind approach a little less invasive by using the following static method:
public static void PreloadMenuImages(Image imageLoader)
{
    foreach (var item in PopupMenuManager.MenuTriggers
                                         .Select(mt => mt.PopupMenuBase).OfType<PopupMenu>()
                                         .SelectMany(m => m.Items).OfType<PopupMenuItem>())
    {
        imageLoader.Source = item.ImageSource;
        imageLoader.Source = item.ImageRightSource;
    }
}
To start with make sure you have a dummy Image control in your page named, say imgLoader, so that you can pass it as parameter in the new method.

Then simply call it once your menus have been generated. All it does is loop through every image in your menus and loads them in your app via the dummy image control.

Hi Ziad,

Just want to inform you that above mentioned issue is not occuring in Silverlight 5. I have upgraded my project from SL4 to SL5 and now Icon is displayed through XAML and Code. I guess there is some issue with SL4 Business application.

New Post: Debug.Write still in production version

CrustyApplesniffe — Fri, 16 Mar 2012 14:24:25 GMT

Just to inform you that you've missed a "Debug.WriteLine(DateTime.Now.ToString());" line in the Close() method (in PopupMenuBase)

and ... thank you very much for this 'Must Have'

Crusty Applesniffer

New Post: How to make it scrollable?

MahmoudElBarbary — Tue, 28 Feb 2012 08:56:28 GMT

Thanks Ziad that fixed it

Regards

New Post: How to make it scrollable?

ZiadJ — Mon, 27 Feb 2012 13:36:34 GMT

Ok thanks Mahmoud, this update should fix it:

if (this.Container != null) 
{
	var container = this.Container;

	container.Dispatcher.BeginInvoke(delegate
	{
		 container.IsEnabled = this.IsEnabled; 
	});
}

I haven't tested it myself though so I'm leaving that on you.

New Post: How to make it scrollable?

MahmoudElBarbary — Mon, 27 Feb 2012 09:06:36 GMT

Hi ZiadJ,

The null reference exception appears in the underlined red line

                if (this.Container != null) // Don't bother calling synchContainerState if the container does not yet exist since it will eventually be called in OnApplyTemplate.
                {
                    this.Container.IsEnabled = this.IsEnabled; // Sync the container state.

                    this.Container.Dispatcher.BeginInvoke(delegate
                    {
                       this.Container.IsEnabled = this.IsEnabled; // Sync the container state.
                    });
                }

and the null object is [this.Container]

that exception appears only upon scrolling the context menu.

Thanks for your help

New Post: How to make it scrollable?

ZiadJ — Mon, 27 Feb 2012 01:26:08 GMT

That's weird because the code starts with if (this.Container != null) which is there to make sure that the value is not null beforehand.

I'm missing something here. Can you give me more details on which property is null and on which line?

Otherwise this shouldn't introduce any major bugs. At worst the menu items might not go into disabled mode when IsEnabled is false.

New Post: How to make it scrollable?

MahmoudElBarbary — Sun, 26 Feb 2012 14:02:25 GMT

Dear ZiadJ,

Thanks for your help , i now have a new requirement i wanted to generate the popup menu dynamically, so i did the following

subsubmenu.ItemsControl.MaxHeight = 250;

subsubmenu.Width = 150;

that made the scroll bar appear, but generated null reference exception upon scrolling at line [this.Container.IsEnabled = this.IsEnabled;] in code snippet

                if (this.Container != null) // Don't bother calling synchContainerState if the container does not yet exist since it will eventually be called in OnApplyTemplate.
                {
                    this.Container.IsEnabled = this.IsEnabled; // Sync the container state.

                    this.Container.Dispatcher.BeginInvoke(delegate
                    {
                        this.Container.IsEnabled = this.IsEnabled; // Sync the container state.
                    });
                }

So i commented these lines of codes and everything went fine
Is what i did right and this won't generate further bugs in the future? Or can you help me with another workaround?
Thanks in advance

New Post: How to get the position of the PopupMenu

truyenle — Fri, 24 Feb 2012 18:08:09 GMT

That's cool. Thank you so much. On the way, I'll give it a try and udpate back.

Thanks

New Post: How to get the position of the PopupMenu

ZiadJ — Fri, 24 Feb 2012 17:52:36 GMT

Have you downloaded the source code version of the menu?

If so I suggest you add the required property to the PopupMenuBase class as follows:

public bool Position
{
    get{return(bool)GetValue(PositionProperty);}
    set{SetValue(PositionProperty, value);}
}

public static readonly DependencyPropertyPositionProperty = DependencyProperty.Register("Position", typeof(bool), typeof(PopupMenuBase), new PropertyMetadata(false, (sender, e)=>
{
    var pmb = sender as PopupMenuBase;
    return pmb.ContentRoot.Margin;
}));

This should make it accessible from within your view.

I still have to try it myself though.

PS.

If you don't have access to the source code then implementing it in a partial class should be ok I guess.

New Post: How to make it scrollable?

ZiadJ — Fri, 24 Feb 2012 17:30:35 GMT

Thanks for your appreciation.

Have you tried it with a ListBox instead?

This should work fine:

<ListBox ScrollViewer.VerticalScrollBarVisibility="True" >
    ...
<ListBox/>

New Post: How to get the position of the PopupMenu

truyenle — Fri, 24 Feb 2012 17:26:55 GMT

Thank for your response.

If we use MVVM model and want to use an ICommand. how can we have this info in the View (XAML) and then pass to the command in the CommandParameter?

Well, don't want to use code behind.

Thank again for a nice menu.

Truyen

New Post: PopUpMenu on DataGrid columns

ZiadJ — Fri, 24 Feb 2012 17:11:39 GMT

You can add a tag, say 'hasMenu', to the datagrid columns or each cell within it and then use RightCickElements = '.hasMenu' to associate the menu with them at startup. Note the use of the prefix '.' when you intend to target the tag property.

If you're ok with using code behind then the AddTrigger method should get you going.

However if you need more control you can also use the GetClickedElements<T> function(see Demo1) to determine which control was clicked and cancel the opening event using the IsOpenCancelled from there.

New Post: How to get the position of the PopupMenu

ZiadJ — Fri, 24 Feb 2012 16:50:47 GMT

This is a good question actually since this information is not accessible right away.

You'll get the position by accessing the margin of the root control for the menu content ContentRoot as such:

var position = pm.ContentRoot.Margin;

Thanks for asking...I'll definitely make this more obvious in later versions.

New Post: How to make it scrollable?

MahmoudElBarbary — Thu, 23 Feb 2012 13:48:19 GMT

I have downloaded and used the SL4PopupMenu and its really great.
But codeplex says it's scrollable, however i cannot find out how to make it scrollable, i tried adding ScrollViewer to ItemsPresenters but it didn't work, here is what i did:
                            <ScrollViewer VerticalScrollBarVisibility="Auto" Height="80" MaxHeight="50">
                                <ItemsPresenter Grid.ColumnSpan="2" Margin="{TemplateBinding Padding}"/>
                            </ScrollViewer>
so can any one help me?