Excel 仅在文本被截断时自动调整列

Question

下面的代码自动调整我的所有列在一个范围内，这工作得很好。问题是，有些列设置为特定宽度，其中所有文本都完美适合，但自动调整会抓取该列并自动调整它，因此会减小列的大小，从而改变图表的总宽度。有没有一种方法可以在自动调整列之前进行检查，以确保我只自动调整由于列大小太小而单元格中的文本不适合的列？

// Get the range that should be auto-fitted.
                IRange range = workbook.ActiveWorksheet.Cells[img.cellRange];
                    
                // Iterate over your range in column "chunks", e.g., for your example range
                // of G6:Q39 it would be split and loop over G6:G39, H6:H39, I6:I39, etc.
                foreach (IRange column in range.Columns){
                    // Only auto-fit if the column is visible.
                    if (!column.Hidden){
                        column.AutoFit();
                    }
                }

图表示例：

与自动调整后的样子：

Answer 1

不存在指示 AutoFit() 仅增加列的选项/在内容较短的情况下避免缩小列的选项；也没有办法检测列何时可能收缩——除非实际调用 AutoFit()。

因此，您可以做的是在调用 AutoFit() 之前保存每列的宽度，然后如果发现新宽度比以前小，则恢复到该宽度。示例：

// Get the range that should be auto-fitted.
IRange range = workbook.ActiveWorksheet.Cells[img.cellRange];

// Iterate over your range in column "chunks", e.g., for your example range
// of G6:Q39 it would be split and loop over G6:G39, H6:H39, I6:I39, etc.
foreach (IRange column in range.Columns)
{
    // Only auto-fit if the column is visible.
    if (!column.Hidden)
    {
        // Save off column width prior to auto-fitting.
        double colWidthBefore = column.ColumnWidth;

        // Call AutoFit which will grow or shrink the column as needed.
        column.AutoFit();

        // Revert back to the origial width if the column shrank.
        if (column.ColumnWidth < colWidthBefore)
            column.ColumnWidth = colWidthBefore;
    }
}