title: How to force displaying specific dates on DateTimeAxis
body: <p>Is it possible to force the display of grid lines on the chart with the dates for the extreme data points?</p>
  
  <p>I've tried almost every configuration of following Chart DateTimeAxis properties: <code>IntervalType</code>, <code>Interval</code>, <code>Minimum</code> and <code>Maximum</code> but I wasn't satisfied with the result.</p>
  
  <p>Setting properties <code>Minimum</code> and <code>Maximum</code> didn't solve the problem.</p>
  
  <p>For instance (<code>IntervalType="Days" , Interval="4" , Minimum="1/1/2010" , Maximum="1/31/2010"</code>):</p>
  
  <p><img src="https://i.stack.imgur.com/SMrP4.png" alt="An example chart"></p>
  
  <p>If I'm lucky I will generate some random data where only one extreme point will have the date with grid line.</p>
  
  <p>Does somebody have an idea how to solve the problem mentioned above?</p>
  
  <p><strong>Edited to add</strong>
  I added a bounty to this question since I really need a fast solution for this issue. </p>
  
  <p>I am binding a series of specific  pairs to my chart and I'd like to display excactly those given DateTime values on the x-axis.<br>
  Since these are usually dates like 6/30/11, 6/30/12 and so on, I can't use the Interval/IntervalType properties because adding 1 year or 365 days to 6/30/11 doesn't necessarily result in 6/30/12. </p>
  
  <p>So what I need to do is either disable the "automatic axis label generation" of the DateTime axis or use another axis type.<br>
  LinearAxis doesn't work because it expects double values and CategoryAxis is not an option because it displays the axis labels between two tickmarks instead of underneath them.</p>
  
  <p>I am very grateful for any help!</p>
  
  <p>To be perfectly clear, here is what axis labels I need (taken from another chart component):
  <img src="https://i.stack.imgur.com/A4AsY.png" alt="enter image description here"></p>
  
  <p>This is what I get so far with the Silverlight 4 Toolkit:
  <img src="https://i.stack.imgur.com/UfZtM.png" alt="enter image description here"></p>
  
  <p>€: I also opened a <a href="http://forums.silverlight.net/t/234753.aspx/1?Show%20specific%20dates%20on%20DateTimeAxis" rel="nofollow noreferrer">thread</a> in the official Silverlight Toolkit Support Forums.</p>