c# - 使用适当的表格格式将带有图像的 DataGridView 数据导出到 Excel、HTML 或 Word

Question

我有一个数据 GridView ，其中加载了图像。作为此数据网格源的表具有图像路径，我使用该路径加载图像。我尝试将数据导出到 Excel 并成功了，但它似乎显示了一些图像问题。请任何帮助？任何帮助代替 Excel、HTML 或 Word 或任何东西都可以，但请提供详细的帮助，否则会导致很多问题。

这是我用来导出到 Excel 的代码:

saveFileDialog1.Filter = "Excel (*.xls)|*.xls";
            if (saveFileDialog1.ShowDialog() == DialogResult.OK)
            {
                if (!saveFileDialog1.FileName.Equals(String.Empty))
                {
                    FileInfo f = new FileInfo(saveFileDialog1.FileName);
                    if (f.Extension.Equals(".xls"))
                    {
                        Excel.Application xlApp;
                        Excel.Workbook xlWorkBook;
                        Excel.Worksheet xlWorkSheet;
                        object misValue = System.Reflection.Missing.Value;

                        xlApp = new Excel.ApplicationClass();
                        xlWorkBook = xlApp.Workbooks.Add(misValue);
                        xlWorkSheet = (Excel.Worksheet)xlWorkBook.Worksheets.get_Item(1);
                        int i = 0;
                        int j = 0;

                        for (i = 0; i <= dataGridView1.RowCount - 1; i++)
                        {
                            for (j = 0; j <= dataGridView1.ColumnCount - 1; j++)
                            {

                                DataGridViewCell cell = dataGridView1[j, i];
                                xlWorkSheet.Cells.Borders.LineStyle = Excel.XlLineStyle.xlContinuous;
                                xlWorkSheet.Columns.AutoFit();
                                if (cell.Value.GetType() == typeof(Bitmap))
                                {
                                    xlWorkSheet.Cells[i + 1, j + 1] = ReadFile((Bitmap)cell.Value);
                                }
                                else
                                {
                                    xlWorkSheet.Cells[i + 1, j + 1] = cell.Value;
                                }

                            }
                        }

                        xlWorkBook.SaveAs(saveFileDialog1.FileName, Excel.XlFileFormat.xlWorkbookNormal, misValue, misValue, misValue, misValue, Excel.XlSaveAsAccessMode.xlExclusive, misValue, misValue, misValue, misValue, misValue);
                        xlWorkBook.Close(true, misValue, misValue);
                        xlApp.Quit();

                        releaseObject(xlWorkSheet);
                        releaseObject(xlWorkBook);
                        releaseObject(xlApp);

                        MessageBox.Show("Excel file created , you can find the file " + saveFileDialog1.FileName);
                    }
                    else
                    {
                        MessageBox.Show("Invalid file type");
                    }
                }
                else
                {
                    MessageBox.Show("You did pick a location " +
                                    "to save file to");
                }
            }

表格格式为:

斧头号rm_no全名类型照片//文件路径。指纹//文件路径。

都是字符串。我也尝试过使用 Spire.dataExport 和 iTextSharp，但它不起作用。

Answer 1

如果您需要将图像放入单元格中，请尝试以下代码:

if (cell.Value.GetType() == typeof(Bitmap))
{
    // You have to get original bitmap path here
    string imagString = "bitmap1.bmp";
    Excel.Range oRange = (Excel.Range)xlWorkSheet.Cells[i + 1, j + 1]; 
    float Left =(float) ((double)oRange.Left);
    float Top =(float) ((double)oRange.Top);
    const float ImageSize=32;
    xlWorkSheet1.Shapes.AddPicture(imagString, Microsoft.Office.Core.MsoTriState.msoFalse, Microsoft.Office.Core.MsoTriState.msoCTrue, Left, Top, ImageSize, ImageSize);
    oRange.RowHeight = ImageSize + 2;
}
else
{
    xlWorkSheet.Cells[i + 1, j + 1] = cell.Value;
}