Databases
StackOverflow2013
Postsdbo
POStyling a combobox's PART_EditableTextBox
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POStyling a combobox's PART_EditableTextBox
    primarykey
    data
    text
    <p>I want to add conditionnal formatting (just font color) to the textbox part of a combobox. According to MSDN, it's the "PART_EditableTextBox" element. A quick search on SO got me started but I now face a problem: it overrides the whole template. According to <a href="https://stackoverflow.com/a/12011848/1991423">this SO answer</a>, I can use "BasedOn" to override only specific properties but I've no idea how/where to use it. This is my current template:</p> <pre><code> &lt;ControlTemplate x:Key="MyComboBoxTextBox" TargetType="ComboBox" &lt;!--Here?--&gt; &gt; &lt;TextBox x:Name="PART_EditableTextBox" &lt;!--Maybe Here?--&gt;&gt; &lt;TextBox.Style&gt; &lt;Style TargetType="TextBox"&gt; &lt;Style.Triggers&gt; &lt;Trigger Property="Text" Value="MAL"&gt; &lt;Setter Property="Foreground" Value="DarkOrange"&gt;&lt;/Setter&gt; &lt;/Trigger&gt; &lt;/Style.Triggers&gt; &lt;/Style&gt; &lt;/TextBox.Style&gt; &lt;/TextBox&gt; &lt;/ControlTemplate&gt; </code></pre> <p>It works, I can still type in valid values and "MAL" does make the text orange but there's no dropdown anymore. On MSDN, I found the following:</p> <pre><code>&lt;TextBox x:Name="PART_EditableTextBox" Style="{x:Null}" Template="{StaticResource ComboBoxTextBox}" HorizontalAlignment="Left" VerticalAlignment="Bottom" Margin="3,3,23,3" Focusable="True" Background="Transparent" Visibility="Hidden" IsReadOnly="{TemplateBinding IsReadOnly}" /&gt; </code></pre> <p>I suppose I should base my template on this "ComboBoxTextBox" but I don't know how to reference it. Do I really need to copy the whole template or is there a way to override a specific property?</p> <p>EDIT: On the same MSDN page comboboxTextBox is defined as</p> <pre><code>&lt;ControlTemplate x:Key="ComboBoxTextBox" TargetType="{x:Type TextBox}"&gt; &lt;Border x:Name="PART_ContentHost" Focusable="False" Background="{TemplateBinding Background}" /&gt; &lt;/ControlTemplate&gt; </code></pre> <p>I don't see how overriding this template removes the dropdown list.</p>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USCommunity
    1. US0xFF
    plurals
    1. PL
      singulars
      1. LTLinked
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. COIt seems to me that what your ControlTemplate is doing is basically re-templating your ComboxBox to only have a TextBox. If you want to see the dropdown list, you need to have a control definition for that PART! Unfortunately I'm not good enough at ReTemplating to help you with this, but hopefully this points you in the right direction.
      singulars
      1. POStyling a combobox's PART_EditableTextBox
      1. USfailedprogramming
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload