I have need to programmatically create a TextBlock inside a WrapPanel. This TextBlock will act like a heading, therefore I don't want anything to appear to right of the TextBlock. Is there a better way to max out the Width of the TextBlock without doing something like;
myTexblock.Width = 1000000;
Thanks
I think a better solution than putting your header in your WrapPanel is to place the header and WrapPanel in a StackPanel
Something similar to this:
<StackPanel>
<TextBlock Text="Some Header Text"
HorizontalAlignment="Stretch" />
<WrapPanel>
<Button Content="Placeholder" />
<Button Content="Also holding a place" />
</WrapPanel>
</StackPanel>
This gives the same visual effect as what you described without the sloppy property setting.
Related
I have a tabcontrol in which each tabITem is rendered a very big font symbol (see image below)
now the tooltip is set to a very big size according to the very big size of the aforementioned tabItem char.
What I'd like is to keep the tabItem symbol very big but being able to resize the tooltip font.
PLUS
I can't understand why the tabheader tooltip is randomly set on all children. I want it on the tabheader itself and not floating everywhere!
--EDIT---
As requested here is a relevant part of my xaml. I only include tab2 which is shorter but there are several tabItems and all behave the same way.
<!-- +++++++++++++ TAB2 ++++++++++++ -->
<TabItem Name="tabItem2" HorizontalAlignment="Center" Height="80" IsSelected="false" FontSize="{StaticResource TAB_FONTSIZE}">
<TabItem.Header>
<StackPanel>
<TextBlock Text=""/> <-------------unicode symbol very big!
<TextBlock Name="tbTab2" Visibility="Hidden" FontSize="{StaticResource BUTTON_FONTSIZE}" />
</StackPanel>
</TabItem.Header>
<TabItem.Background>
<ImageBrush/>
</TabItem.Background>
</TabItem>
while tooltip is set in code-behind
tabItem2.ToolTip = Langs.Word(Langs.eWords.Pallet);
and it gets the HUGE size of the aforementioned unicode char.
Thanx for any help
The problem here is that you set both font size and tooltip directly on the TabItem, and those are then "inherited" by the item's header and content (the font size is also "inherited" by their tooltips). So in order to accomplish what you're asking you need to be more precise when setting those properties, i.e. set them on appropriate controls and not on the TabItem itself. In your case the following should work as expected.
You want to use the large font only for the unicode character, so set the FontSize property only on the control displaying that character:
<TextBlock Text="" FontSize="{StaticResource TAB_FONTSIZE}" />
You want the tooltip to be displayed only for the header, therefore you should set it on the header. You can do that either in XAML:
<TabItem.Header>
<StackPanel ToolTip="My tooltip text">
...
</StackPanel>
</TabItem.Header>
or in code-behind:
var stackPanel = (StackPanel)tabItem2.Header;
stackPanel.ToolTip = "My tooltip text";
Sorry guys, I had asked this question earlier but could not figure out the answer. Made an edit to see if that bumps it, but that did not seem to work. So here is the last try to the question
I can't seem to figure out how one can get the value of a specific textblock in a listbox. To start things off, here is the code:
<ListBox HorizontalAlignment="Left" Name="listItems" VerticalAlignment="Top" >
<ListBox.ItemTemplate>
<DataTemplate>
<StackPanel Orientation="Horizontal" Height="210" >
<Grid Height="210" Background="#75FFF8DC">
<toolkit:GestureService.GestureListener>
<toolkit:GestureListener Tap="GestureListener_Tap"
DoubleTap="GestureListener_DoubleTap"
Hold="GestureListener_Hold"
Flick="GestureListener_Flick"/>
</toolkit:GestureService.GestureListener>
...CODE...
</></></>...
The code area contains a bunch of other grids, partitions (columns and rows) and textblocks. Here is an example:
<Image Name="XXX" Source="{Binding XXXPath}" Stretch="Fill"
Grid.Column="0"/>
<TextBlock Name="YYY" Grid.Column="1" Grid.Row="0"
Text="{Binding YYYPath}" Foreground="Black"/>
<TextBlock Name="ZZZ" Grid.Column="2" Grid.Row="0"
Text="{Binding ZZZPath}" Foreground="Black"/>
So what I want, is if someone taps the grid (that means anything in the grid, including these textblocks and images), I want to first get the text of the textblock "YYY."
I could have inserted that code into a textblock and used sender as textblock, but I do not want to limit my gestures to one textblock, nor do I want to repeat that for each element in the grid (lots of issues and seems unnecessary).
Edit: If this does not work, I can also implement just one tap gesture (but again, for the whole grid) and use that to get the value of the textblock. Is there no way? Otherwise I will have to do this: Add tap for the textblock and use sender as a textblock, then get the value of the text. But I really do not want to use this approach.
I see you use bindings for your textblocks and image. So why don't you use ( if you haven't already done it) an IList instance of class which hold an information about them? Then set this instance as an ItemSource for your listbox. That way when user taps somewhere on listbox you can catch the SelectedIndex or SelectedItem of a listbox item. And this will help you to figure out which element of IList collection to extract so you could get your text or image or whatever you need.
And you don't need to use GestureServices from external Silverlight Toolkit with Mango. Tap, DoubleTap etc. are built-in.
Since TextBox doesn't allow smooth scrolling, I've used it as a ListBoxItem. It works great. But when I enter many lines, the cursor goes out of the view, down below the list box, because of it I'm unable to see the text which I am typing. To see the cursor, I have to manually swipe the TextBox up.
Here's the code:
<ListBox>
<ListBox.Items>
<TextBox HorizontalAlignment="Stretch"
VerticalAlignment="Stretch"
Width="467"
AcceptsReturn="True"
MinHeight="300"
MaxHeight="Infinity"
/>
</ListBox.Items>
</ListBox>
Don't set the height of the TextBox and wrap a ScrollViewer around your TextBox. That has worked for me!
Did you try the srollable textblock instead of textbox..For more details
visit http://blogs.msdn.com/b/priozersk/archive/2010/09/08/creating-scrollable-textblock-for-wp7.aspx
I'm trying to create a simple header template for an accordion object in silverlight 4.
I've added an image and a TextBlock to the header template of the AccordionItem. I want to hide or show the image dependant on the values entered on the page.
Because i want to bind these values directly to the actual accordion item, I've created a new type 'AccordionItemWithIcons' that simply inherits from AccordionItem but adds a couple of dependancy properties to handle this. I'm only showing a couple of those properties for brevity. :)
So, here's my accordion with my 'AccordionItemWithIcons' control. Note that the property 'CheckIsVisible' is of type 'Visibility'
<Grid x:Name="LayoutRoot">
<Controls:Accordion Height="100">
<my:AccordionItemWithIcons
x:Name="FirstItem"
Content="Content Text"
Header="Header Text"
CheckIsVisible="Collapsed"
EventSummary="Summary Text"
HeaderTemplate="{StaticResource AccordionItemHeaderTemplate1}"/>
</Controls:Accordion>
</Grid>
And here is the header template.
<DataTemplate x:Key="AccordionWithIcons_HeaderTemplate1" >
<Grid >
<StackPanel Orientation="Horizontal" VerticalAlignment="Top">
<TextBlock Text="{Binding EventSummary}" />
<Image Visibility="{Binding CheckIsVisible}" Source="/Labyrinth;component/cross.png"/>
</StackPanel>
</Grid>
</DataTemplate>
Can anyone explain how I can bind the TextBlock's text and the Image's Visibility to the values set in the underlying AccordionItemWithIcons object? I've spent hours messing about with different DataContext's and sources and cannot seem to get this to work!
I don't know if helps to explain what I'm trying to achieve, but ultimately in the code behind i want to be able to say something like (shown below), to show or hide the icon in the header template.
FirstItem.CheckIsVisible = Visibility.Visible
For this, there exists a VisibilityToBooleanConverter
<BooleanToVisibilityConverter x:Key=”boolVisConverter”/>
[...]
Visibility="{Binding ElementName=anyCheckbox,
Path=IsChecked,
Converter={StaticResource boolVisConverter}}"
My problem is rather simple.
I have a ListBox, containing Thumnails (Image)
<ListBox Name="ListBox_Thumbnails" ItemsSource="{Binding}" DataContext="{Binding Source= {StaticResource ThumbnailListSource}}" Width="120" HorizontalAlignment="Left" Margin="-1,26,0,54">
<ListBox.ItemTemplate>
<DataTemplate>
<StackPanel>
<Image Source="{Binding Path=absolutePath}" MouseLeftButtonDown=<!--?????-->/>
</StackPanel>
</DataTemplate>
</ListBox.ItemTemplate>
I wanted to show an image, but as a new StackOverFlow user, I can't. You can find the image here:
http://www.freeimagehosting.net/uploads/61aa983cad.jpg
(For those who don't trust me, I explain here the content of the image:
On the left, there is a list of thumbnails (displayed vertically) and on the right there is a bigger image, corresponding per default to a large image of the first thumbnail).
When I click on a thumbnail (on the left), the large image on the right should be updated by the one that I clicked on.
As I am new with WPF, my approach is perhaps totally wrong with the ListBox.
Please, WPF Gurus, show me the light!
I guess, you can use events on ListBox, smth like SelectionChanged... but that's totally not the TRUE WPF-Jedi way -- remember, code-behind is the dark side! =)
Think data binding, that's the Force. Bind your large Image element's source to the SelectedItem property of the ListBox. It should look like
<Image Source="{Binding SelectedItem.absolutePath, ElementName=ListBox_Thumbnails}">
P.S. Every WPF-databinding-jedi should have this cheat sheet nearby.
P.P.S. Actually, as you're using ItemTemplate this might not work, you'll have your StackPanel as the selected item... in this case you can try the SelectedValuePath trick, set it to "absolutePath" and bind the large image to the SelectedValue property.
So your ListBox opening tag becomes:
<ListBox Name="ListBox_Thumbnails" ItemsSource="{Binding}" DataContext="{Binding Source= {StaticResource ThumbnailListSource}}" Width="120" HorizontalAlignment="Left" Margin="-1,26,0,54" SelectedValuePath="absolutePath">
And your large image tag becomes:
<Image Source="{Binding SelectedValue, ElementName=ListBox_Thumbnails}">