It so happened that the application I'm working on doesn't operate on documents, so there's no need in displaying the recently opened documents list in the application menu.
But - annoyingly - there are no properties readily available in the RibbonApplicationMenu class to hide the unused AuxiliaryPane (for which, curiously, the property does exist, but is marked as "internal").
Of course, I can just leave it there - but that's... untidy.
So, here's the solution I came up with.
Hope it will be helpful for anyone else :-)
The general idea is to subclass the RibbonApplicationMenu, find the template child corresponding to the menu's Popup, and overrule its Width (after a number of frustrating experiments it became evident that doing that neither for PART_AuxiliaryPaneContentPresenter nor for PART_FooterPaneContentPresenter - nor for the both - could achieve anything).
Well, without further ado, here's the code:
public class SlimRibbonApplicationMenu : RibbonApplicationMenu
{
private const double DefaultPopupWidth = 180;
public double PopupWidth
{
get { return (double)GetValue(PopupWidthProperty); }
set { SetValue(PopupWidthProperty, value); }
}
public static readonly DependencyProperty PopupWidthProperty =
DependencyProperty.Register("PopupWidth", typeof(double),
typeof(SlimRibbonApplicationMenu), new UIPropertyMetadata(DefaultPopupWidth));
public override void OnApplyTemplate()
{
base.OnApplyTemplate();
this.DropDownOpened +=
new System.EventHandler(SlimRibbonApplicationMenu_DropDownOpened);
}
void SlimRibbonApplicationMenu_DropDownOpened(object sender, System.EventArgs e)
{
DependencyObject popupObj = base.GetTemplateChild("PART_Popup");
Popup popupPanel = (Popup)popupObj;
popupPanel.Width = (double)GetValue(PopupWidthProperty);
}
}
As a side note, I tried to find any way to resolve the desired width based on the max width of the ApplicationMenu's Items (rather than setting it explicitly through the DependencyProperty in XAML) - but to no avail.
Given my despise to "magic numbers", any suggestion on that will be deeply appreciated.
I know this has been a while, but I've got another solution to this. This one does not provide the Popup width property, instead a ShowAuxilaryPanel boolean. It then goes to Bind the width of the Popup, to the width of the menu item area of the menu.
public class SlimRibbonApplicationMenu : RibbonApplicationMenu
{
public bool ShowAuxilaryPanel
{
get { return (bool)GetValue(ShowAuxilaryPanelProperty); }
set { SetValue(ShowAuxilaryPanelProperty, value); }
}
public static readonly DependencyProperty ShowAuxilaryPanelProperty =
DependencyProperty.Register("ShowAuxilaryPanel", typeof(bool),
typeof(SlimRibbonApplicationMenu), new UIPropertyMetadata(true));
public override void OnApplyTemplate()
{
base.OnApplyTemplate();
this.DropDownOpened += SlimRibbonApplicationMenu_DropDownOpened;
}
void SlimRibbonApplicationMenu_DropDownOpened(object sender, EventArgs e)
{
DependencyObject popupObj = base.GetTemplateChild("PART_Popup");
Popup panel = (Popup)popupObj;
var exp = panel.GetBindingExpression(Popup.WidthProperty);
if (!this.ShowAuxilaryPanel && exp == null)
{
DependencyObject panelArea = base.GetTemplateChild("PART_SubMenuScrollViewer");
var panelBinding = new Binding("ActualWidth")
{
Source = panelArea,
Mode = BindingMode.OneWay
};
panel.SetBinding(Popup.WidthProperty, panelBinding);
}
else if (this.ShowAuxilaryPanel && exp != null)
{
BindingOperations.ClearBinding(panel, Popup.WidthProperty);
}
}
}
worked for me
<telerik:ApplicationMenu RightPaneVisibility="Collapsed" >
Related
This might sound like a strange request and i'm not sure if it's actually possible, but I have a Silverlight DataPager control where it says "Page 1 of X" and I want to change the "Page" text to say something different.
Can this be done?
In DataPager style there is a part by name CurrentPagePrefixTextBlock by default its value is "Page".
You can refer http://msdn.microsoft.com/en-us/library/dd894495(v=vs.95).aspx for more info.
One of the solution is to extend DataPager
Here is the code to do that
public class CustomDataPager:DataPager
{
public static readonly DependencyProperty NewTextProperty = DependencyProperty.Register(
"NewText",
typeof(string),
typeof(CustomDataPager),
new PropertyMetadata(OnNewTextPropertyChanged));
private static void OnNewTextPropertyChanged(DependencyObject sender, DependencyPropertyChangedEventArgs e)
{
var newValue = (string)e.NewValue;
if ((sender as CustomDataPager).CustomCurrentPagePrefixTextBlock != null)
{
(sender as CustomDataPager).CustomCurrentPagePrefixTextBlock.Text = newValue;
}
}
public string NewText
{
get { return (string)GetValue(NewTextProperty); }
set { SetValue(NewTextProperty, value); }
}
private TextBlock _customCurrentPagePrefixTextBlock;
internal TextBlock CustomCurrentPagePrefixTextBlock
{
get
{
return _customCurrentPagePrefixTextBlock;
}
private set
{
_customCurrentPagePrefixTextBlock = value;
}
}
public CustomDataPager()
{
this.DefaultStyleKey = typeof(DataPager);
}
public override void OnApplyTemplate()
{
base.OnApplyTemplate();
CustomCurrentPagePrefixTextBlock = GetTemplateChild("CurrentPagePrefixTextBlock") as TextBlock;
if (NewText != null)
{
CustomCurrentPagePrefixTextBlock.Text = NewText;
}
}
}
Now by setting NewText property in this CustomDataPager we can get whatever text we want instead of "Page"
xmlns:local="clr-namespace:Assembly which contains CustomDataPager"
<local:CustomDataPager x:Name="dataPager1"
PageSize="5"
AutoEllipsis="True"
NumericButtonCount="3"
DisplayMode="PreviousNext"
IsTotalItemCountFixed="True" NewText="My Text" />
Now it displays "My Text" Instead of "Page".
But other parts also need to be customised inorder make this work correctly!!
Hope this answers your question
I'm new at Silverlight.
I've created a sort of master page using a Page with a frame where the content is loaded. As I handle multiple UserControls at the time (only one is shown, but I want to keep the state of the opened before) I'm setting Content property instead of Navigate method. That way I can assign a UserControl (already created, not a new one as it would be using Navigate with the Uri to the UserControl).
Now I want to take a picture as shown here from the frame when its content changes. If I do it immediately when the content set, the UserControl won't be shown in the picture because it takes a few secs. Frames have the event Navigated, but it doesn't fire with property Content (it just fires when the method Navigate is used, as it name says).
How can I know when new Content is loaded?
If it helps I'm using Silverligh 5.
I've a solution but I don't really like it, so I'm still looking for other ways.
public class CustomFrame : Frame
{
private readonly RoutedEventHandler loadedDelegate;
public static readonly DependencyProperty UseContentInsteadNavigationProperty =
DependencyProperty.Register("UseContentInsteadNavigation", typeof (bool), typeof (CustomFrame), new PropertyMetadata(true));
public bool UseContentInsteadNavigation
{
get { return (bool)GetValue(UseContentInsteadNavigationProperty); }
set { SetValue(UseContentInsteadNavigationProperty, value); }
}
public CustomFrame()
{
this.loadedDelegate = this.uc_Loaded;
}
public new object Content
{
get { return base.Content; }
set
{
if (UseContentInsteadNavigation)
{
FrameworkElement fe = (FrameworkElement)value;
fe.Loaded += loadedDelegate;
base.Content = fe;
}
else
{
base.Content = value;
}
}
}
void uc_Loaded(object sender, RoutedEventArgs e)
{
((UserControl)sender).Loaded -= loadedDelegate;
OnContentLoaded();
}
public delegate void ContentLoadedDelegate(Frame sender, EventArgs e);
public event ContentLoadedDelegate ContentLoaded;
private void OnContentLoaded()
{
if (ContentLoaded != null)
ContentLoaded(this, new EventArgs());
}
}
I'm trying to use this code to force my progress view to paint before processing begins:
public static class ProgressBehaviors
{
public static readonly DependencyProperty ForceRepaintProperty =
DependencyProperty.RegisterAttached(
"ForceRepaint",
typeof(bool),
typeof(ProgressBehaviors),
new UIPropertyMetadata(false, OnForceRepaintChanged));
public static bool GetForceRepaint(FrameworkElement treeViewItem)
{
return (bool)treeViewItem.GetValue(ForceRepaintProperty);
}
public static void SetForceRepaint(FrameworkElement treeViewItem, bool value)
{
treeViewItem.SetValue(ForceRepaintProperty, value);
}
static void OnForceRepaintChanged(DependencyObject a_object, DependencyPropertyChangedEventArgs e)
{
Border item = a_object as Border;
if (item == null)
return;
item.IsVisibleChanged += (s, ev) =>
{
item.UpdateLayout();
Window window = Window.GetWindow(item);
if (window != null)
window.Measure(window.RenderSize);
};
}
}
Basic behavior injection. The reason i have to do this is because otherwise the please wait progress message is not shown until after its done doing whatever it has to do. I'm trying UpdateLayout and Measure and neither works. Everybody tells me that I'm doing things wrong in WPF. What, am I supposed to wrap every process I'm doing in a second thread or a Dispatcher invoke? That seems ugly.
Here is a way: http://dedjo.blogspot.com/2007/08/how-to-doevents-in-wpf.html
My goal is to create a custom TextBlock control that has a new dependency property, SearchText. This property will contain a regular expression. All occurrences of this regular expression in the text of the TextBlock will be highlighted using a custom style (another DP).
My current implementation involves clearing all of the Inline objects in the TextBlock's InlineCollection. I then fill the TextBlock with runs for unhighlighted text and runs for highlighted text with the style applied (this method does not support adding inlines directly to the TextBlock, instead TextBlock.TextProperty has to be used).
Works great, but sometimes I get a strange exception when trying to clear the Inlines: InvalidOperationException: "Cannot modify the logical children for this node at this time because a tree walk is in progress."
This problem seems to be related to this one. I am modifying the inlines in the TextChanged function, but I'm using a flag to avoid infinite recursive edits.
Any thoughts on how to architect this custom control? Is there a better way to do this? How do I get around this exception?
Thanks!
In my implementation, I solved this by just adding another dependency property, called OriginalText. When it's modified, I updated both the Text property and update the highlighting. Here's the code:
public class HighlightTextBlock : TextBlock
{
public string HighlightedText
{
get { return (string)GetValue(HighlightedTextProperty); }
set { SetValue(HighlightedTextProperty, value); }
}
public static readonly DependencyProperty HighlightedTextProperty =
DependencyProperty.Register("HighlightedText", typeof(string), typeof(HighlightTextBlock), new UIPropertyMetadata(string.Empty, UpdateHighlightEffect));
public static readonly DependencyProperty OriginalTextProperty = DependencyProperty.Register(
"OriginalText", typeof(string), typeof(HighlightTextBlock), new PropertyMetadata(default(string), OnOriginalTextChanged));
private static void OnOriginalTextChanged(DependencyObject obj, DependencyPropertyChangedEventArgs args)
{
var block = ((HighlightTextBlock)obj);
block.Text = block.OriginalText;
block.UpdateHighlightEffect();
}
public string OriginalText
{
get { return (string)GetValue(OriginalTextProperty); }
set { SetValue(OriginalTextProperty, value); }
}
private static void UpdateHighlightEffect(DependencyObject sender, DependencyPropertyChangedEventArgs e)
{
if (!(string.IsNullOrEmpty(e.NewValue as string) && string.IsNullOrEmpty(e.OldValue as string)))
((HighlightTextBlock)sender).UpdateHighlightEffect();
}
private void UpdateHighlightEffect()
{
if (string.IsNullOrEmpty(HighlightedText)) return;
var allText = GetCompleteText();
Inlines.Clear();
var indexOfHighlightString = allText.IndexOf(HighlightedText, StringComparison.InvariantCultureIgnoreCase);
if (indexOfHighlightString < 0)
{
Inlines.Add(allText);
}
else
{
Inlines.Add(allText.Substring(0, indexOfHighlightString));
Inlines.Add(new Run()
{
Text = allText.Substring(indexOfHighlightString, HighlightedText.Length),
Background = Consts.SearchHighlightColor,
});
Inlines.Add(allText.Substring(indexOfHighlightString + HighlightedText.Length));
}
}
private string GetCompleteText()
{
var allText = Inlines.OfType<Run>().Aggregate(new StringBuilder(), (sb, run) => sb.Append(run.Text), sb => sb.ToString());
return allText;
}
}
Still not sure if there's a better way to do this altogether, but I appear to have found a work around.
I was updating the inlines/runs in a function that was fired by the change notification for the TextProperty and the SearchTextProperty.
Now I'm firing the highlight/update code from a Dispatcher.BeginInvoke() call in the change notification with DispatcherPriority.Normal.
In case anyone wants an example of how to do this, I found this
In Microsoft's Expression Blend 3 SketchFlow application.
How would you go about animating the typing of text, ideally in staged character by character fashion. As if the user is typing it.
An associated flashing cursor would make it perfect, but that's far into the realm of "nice to have".
The keyframe animation system, does not allow you to manipulate the
Common Property > Text
field so therefore it doesn't persist as a recorded change in that keyframe of animation.
I'm looking for either editor steps (using some kind of other control) or even XAML code...
<VisualState>
<StoryBoard>
<DoubleAnimationUsingKeyFrame ... >
After blogging about this with a solution involving a wipe animation of a rectangle over a text block, a response blog post with a more advanced solution of using a custom behavior attached to a text block was created.
Creating a 'TypeOnAction' behavior and adding to a TextBlock, will give the desired effect of character by character display, with a customizable appearance rate. Get the full code sample here.
public class TypeOnAction : TriggerAction<TextBlock>
{
DispatcherTimer timer;
int len = 1;
public TypeOnAction()
{
timer = new DispatcherTimer();
}
protected override void Invoke(object o)
{
if (AssociatedObject == null)
return;
AssociatedObject.Text = "";
timer.Interval = TimeSpan.FromSeconds(IntervalInSeconds);
timer.Tick += new EventHandler(timer_Tick);
len = 1;
timer.Start();
}
void timer_Tick(object sender, EventArgs e)
{
if (len > 0 && len <= TypeOnText.Length)
{
AssociatedObject.Text = TypeOnText.Substring(0, len);
len++;
timer.Start();
}
else
timer.Stop();
}
public string TypeOnText
{
get { return (string)GetValue(TypeOnTextProperty); }
set { SetValue(TypeOnTextProperty, value); }
}
public static readonly DependencyProperty TypeOnTextProperty =
DependencyProperty.Register("TypeOnText", typeof(string), typeof(TypeOnAction), new PropertyMetadata(""));
public double IntervalInSeconds
{
get { return (double)GetValue(IntervalInSecondsProperty); }
set { SetValue(IntervalInSecondsProperty, value); }
}
public static readonly DependencyProperty IntervalInSecondsProperty =
DependencyProperty.Register("IntervalInSeconds", typeof(double), typeof(TypeOnAction), new PropertyMetadata(0.35));
}