c# - 按长度拆分字符串到 Excel

Question

我目前正在向 Excel 发送和拆分长行数据。每个拆分打印在一个新行中。我想将其从现有数据中的管道符号拆分更改为以 85 个字符长度拆分，但是，在字符 85 处，它有可能将一个单词拆分为两个。如果要拆分一个实际的单词，我将如何告诉它进一步拆分数据。我知道如果在 85 之后它也应该找到一个空间。我很好奇要添加什么。

// Add Description
      string DescriptionSplit = srcAddOnPanel.Controls["txtProductDescAddOn" + AddRow].Text;
      string[] descriptionParts = DescriptionSplit.Split('|');
      int i;
      for (i = 0; i <= descriptionParts.GetUpperBound(0); i++)
      {
          worksheet.Rows[currentRow].Insert();    //applies the description for the default bundle row
          worksheet.Rows[currentRow].Font.Bold = false;
          worksheet.Cells[currentRow, "E"].Value = rowIndent + descriptionParts[i].Trim();
          currentRow++;
      }

Answer 1

您可以使用这种方法(警告未完全测试)

int x = 85;
int y = 0;
int currentRow = 0;

// Loop until you have at least 85 char to grab
while (x + y < DescriptionSplit.Length)
{
    // Find the first white space after the 85th char
    while (x + y < DescriptionSplit.Length && 
          !char.IsWhiteSpace(DescriptionSplit[x+y]))
        x++;
    // Grab the substring and pass it to Excel for the currentRow
    InsertRowToExcel(DescriptionSplit.Substring(y, x), currentRow);

    // Prepare variables for the next loop
    currentRow++;
    y = y + x + 1;
    x = 85;
}
// Do not forget the last block
if(y < DescriptionSplit.Length)
    InsertRowToExcel(DescriptionSplit.Substring(y), currentRow);
...

void InsertRowToExcel(string toInsert, int currentRow)
{
      worksheet.Rows[currentRow].Insert();    
      worksheet.Rows[currentRow].Font.Bold = false;
      worksheet.Cells[currentRow, "E"].Value = rowIndent + toInsert.Trim();
}