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Odd HTML Formatting of ScreenTip

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Kurt Boyer
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Kurt Boyer asked on 14 Oct 2015, 02:23 PM

I'm using the RadOffice2007ScreenTipElement to show errors for rows within my RadGridView. When the ScreenTip displays, the html text is shown with weird spacing and odd vertical alignment for certain words.

 I've attached a screenshot of what I'm seeing. Take a look at the ScreenTip and notice the word "job" within the error "Blank job group code." There also seems to be extra spacing after that word, and after the word "EEO".

 Here is the relevant code snippet:

private void RadGridView1_ScreenTipNeeded(object sender, ScreenTipNeededEventArgs e)
{
  var cell = e.Item as GridDataCellElement;
  if (cell != null)
  {
    switch (cell.ColumnInfo.Name)
    {
      case "errorimage":
          int rowIndex = radGridView1.Rows.IndexOf(radGridView1.CurrentRow);
          if (rowIndex > -1)
          {
            if (cell.RowElement.RowInfo.Cells["errortext"].Value.ToString() != "")
            {
              var screenTip = new RadOffice2007ScreenTipElement();
              screenTip.CaptionLabel.Margin = new Padding(3);
              screenTip.CaptionLabel.Text = "Job Error(s)";
              screenTip.MainTextLabel.Text = cell.RowElement.RowInfo.Cells["errortext"].Value.ToString().Trim();
              screenTip.EnableCustomSize = true;
              e.Delay = 50;
              e.Item.ScreenTip = screenTip;
            }
            else
            {
                e.Item.ScreenTip = null;
              }
          }
          break;
        default:
            break;
    }
  }
}

Is there any way to fix this?

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Hristo
Telerik team
answered on 19 Oct 2015, 11:14 AM
Hello Kurt,

Thank you for writing.

The Html-like feature has a known issue related to the incorrect painting because some fonts do not report correctly their text metrics. For example, Segoe UI and Tahoma with font size 8.5 do not render correctly - they report incorrectly some text metrics and changing the font to Segoe UI with size 9 (or Verdana 8.25, which looks pretty good) fixes the incorrect rendering. As a solution I can suggest the following:

RadOffice2007ScreenTipElement screenTip = new RadOffice2007ScreenTipElement();
screenTip.CaptionLabel.Margin = new Padding(3);
screenTip.CaptionLabel.Text = "Job Error(s)";
screenTip.MainTextLabel.Font = new System.Drawing.Font("Verdana", 8.25f);

Alternatively you can also achieve a good result by setting the TextWrap property to false:
RadOffice2007ScreenTipElement screenTip = new RadOffice2007ScreenTipElement();
screenTip.CaptionLabel.Margin = new Padding(3);
screenTip.CaptionLabel.Text = "Job Error(s)";
screenTip.MainTextLabel.TextWrap = false;

I am sending you a attached screenshots showing the result on my end using either approach.

I hope this helps. Should you have further questions please do not hesitate to write back.

Regards,
Hristo Merdjanov
Telerik
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Kurt Boyer
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answered on 19 Oct 2015, 12:16 PM
This works perfectly. Thank you very much Hristo! :)
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Hristo
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Kurt Boyer
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