title: add two or more attribute on onclick event to datagrid rows
body: <p>I have a datagrid and I have to add two attributes on onclick events, with the code below only second attribute is added, someone could help me?</p>
  
  <pre><code>e.Row.Attributes.Add("OnClick", "OpenModalBox(" + variable.ToString + ")")
  e.Row.Attributes("OnClick") = Page.ClientScript.GetPostBackClientHyperlink(gridview, "Select$" &amp; e.Row.RowIndex)
  </code></pre>