About TextBlock UIElement in C#, we could add several Run object into it, which will be appended to inlines property. That's one way we show several pieces of text with different format(font, size and etc) in one TextBlock.
My question is: when I add, such as, two Run object into one TextBlock, there exist a padding between each Run object. For example, I add "12" and "34" Run objects, and finally they will be shown as "12 34" in the view. But what I need is they should be connected together as one word - "1234" - without that padding
Is there any setting we can use to prevent this padding?
Instead of
<TextBlock>
<Run Text="12"/>
<Run Text="34"/>
</TextBlock>
write the runs in one line like this
<TextBlock>
<Run Text="12"/><Run Text="34"/>
</TextBlock>
And the space will be gone.
Related
I'm trying to highlight part of text in a textblock from a listbox datatemplate which in turn is bounded to a property of a custom class by using a textbox to search the list for input text. But the problem is that only part of the items are highlighting (most of the ones visible) but when i maximize the window and try to input another character then suddenly all of them gets highlighted my guess where the problem might be is in this piece of code:
ListBoxItem listboxItemFound= (ListBoxItem)this.listBox1.ItemContainerGenerator.ContainerFromItem(TItem);
Since this method is returning a null when the items are not visible but the items are currently in the listbox. Somehow I guess the items listboxItem instances are not yet created until you scroll down or maximize to view more items.
XAML DataTemplate:
<DataTemplate>
<Grid Name="gridOfListbox" Height="25" Margin="0,2">
<DockPanel Name="dockpanelWithTxtBlock">
<TextBlock Name="textbloxk" DockPanel.Dock="Left" FontSize="15" TextAlignment="Center">
<Run Text="" /><Run Background="Yellow" Text="" /><Run Text="{Binding ProductID}" />
</TextBlock>
</DockPanel>
</Grid>
</DataTemplate>
If more code is needed just let me know.
Any help would be greatly appreciated!!
Also if there is any other better way of finding the listboxItem bounded to the custom Item just let me know. Thank you very much!
[Pic of problem] http://i.stack.imgur.com/HViag.png
One way to fix this is to set VirtualizingStackPanel.IsVirtualizing to false for your ListBox. This will cause all of the items to be created right away. The downside to this is if your ListBox has many items, your program will use more memory (since more items will be created), and could potentially run slower depending on the number of items.
A better solution to consider would be to have multiple DataTemplates for this - one without the highlight, and one with. You can set a DataTemplateSelector for your ListBox (using the ItemTemplateSelector property). The selector can choose which template to use based on if the item matches the search term or not.
The tricky part would be writing the template with the highlighted text. You could probably achieve that by having properties on the object the ListBoxItem is bound to for the text before the highlighted text, the highlighted text, and then the remaining text.
Right now, I have the data I need binding to a RichTextBlock, but I'm unable to format it, since I'm just using one long string bound to the run on a paragraph setup in my RichTextBlock. Obviously, this isn't ideal. I would like to be able to change font sizes or font weights for some words, but can't see of a way to do that with my current method.
<RichTextBlock TextAlignment="Justify" TextWrapping="WrapWholeWords" Name="richTB">
<Paragraph>
<Run Text="{Binding}" />
</Paragraph>
</RichTextBlock>
I know I can create a RichTextBlock in my code behind, and add paragraphs manually to that, but how would I bind it? Since it's in my page.resources?
Unfortunately you can't really bind it if you want to do custom formatting on the string. XAML builds those controls, and you can't really generate those controls through a binding the way you want.
What you could do is hook up an OnLoad event handler for your control, and inject whatever paragraph/run controls via C#.
I believe you are {binding} the source and hence inside the Code, you can take help from this code:
Paragraph para = new Paragraph();
para.Inlines.Add(new Run { Text = sample, FontSize = 15 });
rtb.Blocks.Add(para);
where rtb is a richtextblock.
when i use more than one controls inside the wrap Panel if any control contains lengthy text (more than the window size) cut-off is happening. (See the image)
I have two textblocks and one button control.
<Grid>
<WrapPanel>
<TextBlock Text="Very long Text Message contains long text for testing " FontWeight="Bold"></TextBlock>
<Button Content="sample Text"></Button>
<TextBlock Text="sample Text textblock"></TextBlock>
</WrapPanel>
</Grid>
the cut-off happens for first text block. i want wrap to next line if the text contains more characters.
help me to solve the issue. thanks in advance.
You need the attribute TextWrapping="Wrap" in your textbox
<TextBlock
Text="Very long Text Message contains long text for testing "
FontWeight="Bold"
TextWrapping="Wrap">
</TextBlock>
Are you trying to make a single paragraph that wraps? If so, then WrapPanel isn't actually what you want.
WrapPanel takes UI elements (rectangular chunks of real estate) and lays them out left-to-right, top-to-bottom. You could enable wrapping in your first TextBlock, but then it'll take up a rectangle of screen space that's two lines high. Because the TextBlock fills that entire rectangle, the button will actually appear under it, rather than to the right of the bold words "for testing ".
If you want to make the whole thing flow like a paragraph, you don't want to use UI elements (which are always rectangular chunks); you want to use text elements (which flow in paragraphs).
The way to get text elements into your XAML is to wrap them in a TextBlock. Try this:
<Grid>
<TextBlock TextWrapping="Wrap">
<Bold>
<Run Text="Very long Text Message contains long text for testing " />
</Bold>
<Button Content="sample Text"></Button>
sample Text textblock
</TextBlock>
</Grid>
Note that I wrapped the first chunk of text in a <Run> element -- otherwise the trailing space would be ignored (assumed to be whitespace in your XAML document). The second chunk of text didn't have leading or trailing spaces, so I just put it directly inline.
This answer has a bit more about the difference between the "controls" and "text" sides of XAML.
I'm trying to implement MaskedInput TextBox at WP8. The common scenario: empty field, user see mask, e.g. ###-##-##. Then he starts to input values: 1##-##-##, 21#-##-##, 321-##-##, 432-1#-## and so on. I thought about using TextSelection property and TextChanged event to maintain right selection position and on-fly mask replacing with values. The problem is that I can't use different color for mask, as it share the same input with value. Also I can't use another TextBox or TextBlock behind active, because mask characters will have different width with value (e.g. ### will not align with W##). Is there some way to support multiple foreground at TextBox or to adjust characters width to same value?
UPD: Well, I know about monospacing fonts. Guess, it's the only way to get what I need. But is there some way to implement that feature in one TextBox?
Yes, You will Use like this.
<TextBlock>
<Run Text="*" Foreground="#FFE10101"/><Run Text="Required Line" />
<Run Text="Red" Foreground="Red"/>
<Run Text="Blue" Foreground="Blue"/>
<Run Text="{Binding yourString, StringFormat='with \{0\} a different color!'}" Foreground="Orange"/>
</TextBlock>
For More Reference Refer this Link
I'm creating a menu from a ListBox. I'm using FontAwesome to create some font-icons. This is part of the ListBox ItemTemplate.
<TextBlock FontFamily="FontAwesome" VerticalAlignment="Center" HorizontalAlignment="Center"
FontSize="32" Text="{Binding MenuCode}"
ToolTip="{Binding Tooltip}" >
The problem resides within the TextBlock's Text. I need to display the symbol, not the menu code. So, for example, if I use Text="" directly, then the music icon appears (fixed for all the items), but when I use DataBinding (each item has a different symbol): Text="{Binding MenuCode}" then the text (that is, the menu code as string) appears (as text, no icon). I guess problem is related with encoding, but can't fix it. Any idea?
Wrong escape sequence. HTML uses '#&x' while C# uses \u. So your "#&xF001" would become "\uF001"