Cannot Change Font's isBold and LatinName in the Table Cell

[FrenkieWang]

Hello, I found there is a Bug in ShapeCrawler.
I cannot the attribute isBold, LatinName and OffsetEffect of the Text in a Table Cell.

For example, in the code below.

using System;
using System.IO;
using ShapeCrawler;

class Program
{
    static void Main(string[] args)
    {
        // Create a new PPT and gets its First Slide
        var pres = new Presentation();
        ISlide slide = pres.Slides[0];

        // Create a Table and get the Table
        slide.Shapes.AddTable(40, 40, 6, 5);
        var table = (ITable)slide.Shapes.Last();

        // Add text into a Table Cell
        var cell = table[1, 2];
        cell.TextFrame.Text = "Hello";

        // Edit the Text Font in the Table Cell
        var cellFont = cell.TextFrame.Paragraphs.First().Portions.First().Font;
        cellFont.Size = 40;
        cellFont.LatinName = "Prelo Slab Bold";

        // Get the Path of Desktop
        string desktopPath = Environment.GetFolderPath(Environment.SpecialFolder.Desktop);

        // Assgin the complete Path to save PPT File
        string pptFilePath = Path.Combine(desktopPath, "Text1.pptx");
        pres.SaveAs(pptFilePath);

        Console.WriteLine($"PPT has been saved to：{pptFilePath}");
    }
}

I created a Table and get the Table Cell in Row 2, Column 3.
I added a Text Hello in that Table Cell.

I can only change the Font Size of Hello.
However, if I try to change the Font's LatinName,
it will always throws an Exception in Line 24,
which states Sequence contains no Element

I used BreakPoint to debug, I found that Exception will occur in the three attributes of Font:

1. isBold
2. LatinName
3. OffsetEffect
   

The Exception is located at System.Linq.Enumerable.First[TSource].

Therefore, I am sure that the Original Code of ShapeCrawler has some bugs
It cannot change the isBold, LatinName and OffsetEffect of the Text in a Table Cell.

[ashahabov]

@FrenkieWang, thank you for the bug report. I was able to reproduce the issue.

[ashahabov]

Minimum code for repro:

var pres = new Presentation();
var slide = pres.Slides[0];
slide.Shapes.AddTable(40, 40, 6, 5);
var table = (ITable)slide.Shapes.Last();
var cell = table[1, 2];
cell.TextFrame.Text = "Test";
var cellFont = cell.TextFrame.Paragraphs.First().Portions.First().Font;

cellFont.LatinName = "Arial";