title: wpf - binding stringformat on label using string literal
body: <p>I've binded the tooltip of a slider control to it's Value property and i'm trying to use StringFormat to make it display "Current Value {0} of 10" where the {0} is the Value property.  Below is one of the various things I tried when trying to figure this out.</p>
  
  <pre><code>&lt;Slider.ToolTip&gt;
    &lt;Label&gt;
      &lt;Label.Content&gt;
        &lt;Binding StringFormat="Current Value {0} of 10"
                 ElementName="DebugLevelSlider"
                 Path="Value" /&gt;
      &lt;/Label.Content&gt;
    &lt;/Label&gt;
  &lt;/Slider.ToolTip&gt;
  </code></pre>
  
  <p>I am having issues finding examples online of how to use stringformat with string literals such as mine above. I see a lot of stringformat date/time/currency format conversion. I think I have a way to do this with a multibinding but it just seems like an extra amount of work than necessary. I hope that for string literal formatting I still do not have to write a custom converter.</p>
  
  <p>In my app I find myself using a lot of extra labels next to items so getting an understanding in the stringformat will hopefully let me eliminate some of those unnecessary labels.</p>