Add newline to Stringformat in XAML

Question

I'm binding the columnheaders of a datagrid to an observablecollection of dates, to display the day and date in the columnheader. This works fine. However, I would like to add a newline or break using the string. How can this be done?

<DataGridTextColumn>
    <DataGridTextColumn.HeaderTemplate>
        <DataTemplate>
            <TextBlock TextWrapping="Wrap" Text="{Binding DataContext.Week.Days[1].Date, StringFormat=ddd dd.MM.yyyy, RelativeSource={RelativeSource AncestorType=DataGrid}}"/>

This displays the following Text: Tue 06.12.2016 What I want it to display is

Tue
06.12.2016

score 15 · Answer 1 · answered Mar 28 '18 at 15:43

For folks looking to put a newline in StringFormat (or ContentStringFormat, if you need to use Label), this answer has a way. You can use:

HEX represenation of CR/LF 
 (or just line feed 
):

So, for the code in question:

StringFormat=ddd&#x0d;&#x0a;dd.MM.yyyy

Clemens · Accepted Answer · 2016-12-17T20:46:53.170

8

Set the TextBlock's Inlines property:

<TextBlock DataContext="{Binding DataContext.Week.Days[1].Date,
                         RelativeSource={RelativeSource AncestorType=DataGrid}}">
    <Run Text="{Binding Mode=OneWay, StringFormat=ddd}"/>
    <LineBreak/>
    <Run Text="{Binding Mode=OneWay, StringFormat=dd.MM.yyyy}"/>
</TextBlock>

edited Dec 17 '16 at 20:46

answered Dec 17 '16 at 20:40

Clemens

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I had to set `Mode=OneWay`, but works fine me though. Thanks! – Mister 832 Dec 17 '16 at 20:45
1

`Mode=OneWay` was already in the answer. However, check if the modified XAML also works for you. – Clemens Dec 17 '16 at 20:47
Works as well with less text. Thanks again! – Mister 832 Dec 17 '16 at 20:55

score 2 · Answer 3 · answered Jun 18 '19 at 10:40

StringFormat isn't always an intuitive syntax, but I prefer Vimes solution in combination with TargetNullValue over the accepted solution.

It means I can only add a line-break if the second run has a value

<TextBlock>
  <Run Text="{Binding Message, Mode=OneTime}" />
  <Run Text="{Binding Exception, Mode=OneTime, TargetNullValue='', StringFormat={}&#x0d;&#x0a;{0}}"  />
</TextBlock>

Add newline to Stringformat in XAML

3 Answers3