title: On GridView.DataBind: "Object reference not set to an instance of an object"
body: <p>I have run the following code without issue dozens of times, but now it is returning
  "<strong>Object reference not set to an instance of an object</strong>" on the DataBind:</p>
  
  <pre><code>        DataSet ds = oHelper.GetDependents(gSelectedContact);
          if (ds.Tables[0].Rows.Count &gt; 0)
          {
              try
              {
                  gvDependents.DataSource = ds;
                  gvDependents.DataBind();
                  gvDependents.Columns[1].Visible = false;
                  btnEnroll.Enabled = true;
              }
              catch (Exception ex)
              {
                  lblMessage.Text = ex.ToString();
              }
          }
  </code></pre>
  
  <p>Rows.Count = 3.  There are 8 columns and all are populated as expected. The ex.innerhtml is null. As far as I know nothing's changed from this morning when this ran aok.  Any ideas?  Thank you.</p>