c# - 在excel中获取单元格的内部颜色

Question

我需要在 excel 中用金色突出显示包含错误数据的单元格，我可以做到。但是一旦用户更正数据并单击验证按钮，内部颜色应该恢复为原始内部颜色。这没有发生。请指出错误。并且请提供确切的代码，因为我已经尝试了很多东西，但到目前为止没有任何效果。

private void ValidateButton_Click(object sender, RibbonControlEventArgs e)
      {
          bool LeftUntagged = false;
          Excel.Workbook RawExcel = Globals.ThisAddIn.Application.ActiveWorkbook;
          Excel.Worksheet sheet = null;
          Excel.Range matrix = sheet.UsedRange;
          for (int x = 1; x <= matrix.Rows.Count; x++)
          {
              for (int y = 1; y <= matrix.Columns.Count; y++)
              {
                  string CellColor = sheet.Cells[x, y].Interior.Color.ToString();
                  if (sheet.Cells[x, y].Value != null && (Excel.XlRgbColor.rgbGold.Equals(sheet.Cells[x, y].Interior.Color) || Excel.XlRgbColor.rgbWhite.Equals(sheet.Cells[x, y].Interior.Color)))
                  {
                      sheet.Cells[x, y].Interior.Color = Color.Transparent;
                  }
              }
          }
      }

Answer 1

我实现了我想做的事情。这是解决方案:

private void ValidateButton_Click(object sender, RibbonControlEventArgs e)
      {
          bool LeftUntagged = false;
          Excel.Workbook RawExcel = Globals.ThisAddIn.Application.ActiveWorkbook;
          Excel.Worksheet sheet = null;
          Excel.Range matrix = sheet.UsedRange;
          for (int x = 1; x <= matrix.Rows.Count; x++)
          {
              for (int y = 1; y <= matrix.Columns.Count; y++)
              {
                  string CellColor = sheet.Cells[x, y].Interior.Color.ToString(); //Here I go double value which is converted to string.
                  if (sheet.Cells[x, y].Value != null && (CellColor == Color.Transparent.ToArgb().ToString() || **CellColor == Excel.XlRgbColor.rgbGold.GetHashCode().ToString()**))
                  {
                      sheet.Cells[x, y].Interior.Color = Color.Transparent;
                  }
              }
          }
      }