Why TextRange.FontHeight returns NaN?

[AdamShakhabov]

Why follow code returns Not-a-Number (NaN) value?

Code: Select all

var pre = new Presentation(pptxStream, FileFormat.Auto);
var autoShape = (IAutoShape)pre.Slides[0].Shapes[0];
var fontHeight = autoShape.TextFrame.TextRange.FontHeight;

Spire.Presentation version is 4.4.10

pre004.rar

[nancy.yang]

Hi,

Thank you for contacting us.
I noticed the issue that the FontHeight returns NaN. I have submitted the issue to our Dev team for further investigation and fixing. If there is any update, we will inform you. Sorry for the inconvenience caused.

Sincerely,
Nancy
E-iceblue support team

[Nina.Tang]

Hi,

Thanks for your patient waiting.
The reported issue has been fixed. Welcome to download the release Spire.Presentation Pack Version:4.7. In addition, each textframe may have more than one paragraph, each paragraph may have more than one textrange and different textranges may have different font heights, hence, please use the following code to obtain the FontHeight of specific textrange.

Code: Select all

Presentation ppt = new Presentation();
ppt.LoadFromFile("pre004.pptx");
var autoShape = (IAutoShape)ppt.Slides[0].Shapes[0];
var fontHeight = autoShape.TextFrame.Paragraphs[0].TextRanges[0].FontHeight;


Sincerely,
Nina
E-iceblue support team