Scrolling issues in a TextBox used inside a ListBox - c#

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

Related

ListBoxItem with Runs does not allow mouse selection on text

I'm creating a ListBox with items that have a portion of the text highlighted. This would normally be a search term, but for this simple example I'm just using "NEW". The highlighting works (lifted from a tutorial), but when mouse is over the text portion of the ListBoxItem it does not get the blue highlight and cannot be selected. Clicking in the white space to the right of the text does allow it to be selected. How can I fix the Runs so that they accept the mouse hover and selection?
Sample VS solution utilizing WPF: https://www.dropbox.com/s/m8bhogp3k75rkoj/RunHoverTest.zip?dl=0
Left side of window is normal ListBox, right side is with highlighting applied in OnLoaded event.
I looked into adding a mouse hover event to the Run but got stuck on how to pass it down to the TextBlock. Any suggestion to do the highlighting differently to make it work is also welcome. Thanks.
Create an explicit DataTemplate in the view:
<ListBox Name="HighlightedListBox" Grid.Column="1" ItemsSource="{Binding AllStates}"
Loaded="ListBox_OnLoaded">
<ListBox.ItemTemplate>
<DataTemplate>
<TextBlock Text="{Binding}" />
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
This should make the items selectable.

Custom ScrollBar Style Within ListBox

What I'm Trying to Achieve:
I've created a ListBox with a custom control template using Blend. I want to be able to change it's scrollbar. In blend, I've tried editing the scrollviewers style/ template, but the scrollviewer would look weird, and it wouldn't scroll the items. Also, I've created a style for a ScrollBar Control (in Blend), but I can't seem to use it with my ListBox. If there is a way I can "swap it" with the original boring one, that would be awesome. Thanks in advance. This is the what I have now (the ScrollBar in this example is the one I created, just dragged over the ListBox, so it doesn't really work):
XAML for ListBox:
<ListBox x:Name="ListBox1" Grid.Row="2" Background="#FF141414" Opacity="0.995" BorderBrush="Black" BorderThickness="1">
<ListBoxItem x:Name="LBIMouseLeftButtonDown" Background="#FFE62828" Content="MouseLeftButtonDown" Style="{DynamicResource ToolBoxItemStyle}" Selected="LBIMouseLeftButtonDown_Selected"/>
<ListBoxItem Content="MouseLeftButtonUp" Style="{DynamicResource ToolBoxItemStyle}"/>
</ListBox>

WPF max width of TextBlock in C#

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.

Get a textblock value in a listbox using GestureServices

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.

AutoCompleteBox in silverlight toolkit for windows phone wrong display

I'm having a problem with the autocompletebox from the toolkit for windows phone. I bind it to some data, then when i press it and start typing, it discovers some items but they are displayed wrong (the list is shown separated from the box, and also if i click on any item, nothing happens. If i click where the item would be supposed to be (for example, right on the top of the box), then it gets selected. It looks like a rendering problem (bug?)) but perhaps i'm doing something wrong. Here's the code for the box :
<DataTemplate x:Key="DataTemplate1">
<ContentControl Content="{Binding Name}" Margin="8,7"/>
</DataTemplate>
<toolkit:AutoCompleteBox ItemsSource="{Binding}" x:Name="txtSelectValues" MinWidth="250" Margin="0,0,0,0" ItemTemplate="{StaticResource DataTemplate1}" VerticalAlignment="Top" />
Found it. It's a bug with the AutoCompleteBox. When inside a scrollviewer control, the dropdown gets messed up and displayed in an incorrect position
Its not just that is also to do with being placed inside of a Pivot/Panaroma as well as the scrollviewer, the silverlight gurus have stated they haven't a timeline for the fix for the Pivot control, and there is a nasty hack
http://silverlight.codeplex.com/workitem/7574
I think the answer might just be that you shouldn't be using a ContentControl directly used like this. Try using something like a TextBlock instead - e.g.:
<DataTemplate x:Key="DataTemplate1">
<TextBlock Text="{Binding Name}" Margin="8,7"/>
</DataTemplate>
If that's not the answer, then try pulling back to a simple example - especially removing all the Margin's, Width's, Alignment's, etc - then put them back in one-by-one to work out and understand what is causing the effect you are seeing.

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