EPPlus：在使用LoadFromCollection后，如何给每个单元格分配边框？

Question

在我的导出 ActionResult 中，我能够将模型加载到我的 ExcelPackage 中。

我遇到问题的地方是在应用LoadFromCollection之后为每个单元格指定边框。虽然AutoFitColumns可以正确应用，但我应用的边框样式仅适用于Cells["D1"]，而不适用于整个表格。

BorderAround成功地在整个表格周围放置了一个边框，但我更愿意将边框应用于表格内部的单元格。我是否有办法做到这一点？

// Fill worksheet with data to export
var modelCells = worksheet.Cells["D1"];
var border = modelCells.Style.Border.Top.Style = modelCells.Style.Border.Left.Style = modelCells.Style.Border.Right.Style = modelCells.Style.Border.Bottom.Style = ExcelBorderStyle.Medium;                    

modelCells
    .LoadFromCollection(Collection: exportQuery, PrintHeaders: true)
    .AutoFitColumns(); 

- user4864716

Answer 1

如果我知道模型有多少列，我可以使用一个函数计算行数并执行以下操作：

var modelRows = exportQuery.Count()+1;    
string modelRange = "D1:F" + modelRows.ToString();
var modelTable = worksheet.Cells[modelRange];

或者，更多的背景信息。我验证了EPPlus可以在Cells[]中接受一个字符串变量，这使我能够选择整个表格并正确应用我的边框样式和AutoFitColumns{}。我唯一需要手动输入的是modelRange变量中的起始列和结束列。

var modelCells = worksheet.Cells["D1"];
var modelRows = exportQuery.Count()+1;    
string modelRange = "D1:F" + modelRows.ToString();
var modelTable = worksheet.Cells[modelRange];

// Assign borders
modelTable.Style.Border.Top.Style = ExcelBorderStyle.Thin;
modelTable.Style.Border.Left.Style = ExcelBorderStyle.Thin;
modelTable.Style.Border.Right.Style = ExcelBorderStyle.Thin;
modelTable.Style.Border.Bottom.Style = ExcelBorderStyle.Thin;


// Fill worksheet with data to export
modelCells.LoadFromCollection(Collection: exportQuery, PrintHeaders: true);
modelTable.AutoFitColumns();

- user4864716

---

似乎工作正常，尽管你似乎不需要var border =，因为它从未被使用。 - SharpC

虽然变量并没有被直接使用，但是等号链的作用是打开所有边框。为了清晰起见，我会重新写一下，使其更加明确。 - user4864716

当然，我的意思是var border =部分是多余的，而不是整行代码。但现在看起来更加清晰了。 - SharpC

在Excel范围周围绘制边框的快捷方式：modelTable.Style.Border.BorderAround(OfficeOpenXml.Style.ExcelBorderStyle.Thin); - Gideon Mulder

Answer 2

这样做就可以了 - worksheet.Cells [worksheet.Dimension.Address]

using (ExcelPackage excel = new ExcelPackage())
        {
            excel.Workbook.Worksheets.Add(sheetName);

            excel.SaveAs(excelFile);

            string headerRange = "A1:" + char.ConvertFromUtf32(dtJobs.Columns.Count + 64) + "1";

            // Target a worksheet
            var worksheet = excel.Workbook.Worksheets[sheetName];

            #region design Header
            //worksheet.Cells[headerRange].Style.Font.Bold = true;
            worksheet.Cells[headerRange].Style.Font.Size = 11;
            worksheet.Cells[headerRange].Style.Fill.PatternType = ExcelFillStyle.Solid;
            worksheet.Cells[headerRange].Style.Fill.BackgroundColor.SetColor(Color.DarkGray);
            //worksheet.Cells[headerRange].Style.WrapText = true;
            worksheet.Cells[headerRange].Style.Font.Color.SetColor(Color.White);
            worksheet.Cells[headerRange].Style.HorizontalAlignment = ExcelHorizontalAlignment.Center;
            worksheet.Cells[headerRange].Style.VerticalAlignment = ExcelVerticalAlignment.Center;
            #endregion

            var excelWorksheet = excel.Workbook.Worksheets[sheetName];

            excelWorksheet.Cells[excelWorksheet.Dimension.End.Row, 1].LoadFromDataTable(dtJobs, true);

            worksheet.Cells[worksheet.Dimension.Address].AutoFitColumns();
            worksheet.Cells[worksheet.Dimension.Address].Style.Border.Top.Style = ExcelBorderStyle.Thin;
            worksheet.Cells[worksheet.Dimension.Address].Style.Border.Left.Style = ExcelBorderStyle.Thin;
            worksheet.Cells[worksheet.Dimension.Address].Style.Border.Right.Style = ExcelBorderStyle.Thin;
            worksheet.Cells[worksheet.Dimension.Address].Style.Border.Bottom.Style = ExcelBorderStyle.Thin;

            excel.SaveAs(excelFile);
            return filePath;
        }

- user3259768

Answer 3

        var package = new ExcelPackage(new MemoryStream());
        var ws = package.Workbook.Worksheets.Add("Test");
        var modelTable = ws.Cells;
        modelTable.Style.Border.Top.Style = ExcelBorderStyle.Thin;
        modelTable.Style.Border.Left.Style = ExcelBorderStyle.Thin;
        modelTable.Style.Border.Right.Style = ExcelBorderStyle.Thin;
        modelTable.Style.Border.Bottom.Style = ExcelBorderStyle.Thin;
        modelTable.AutoFitColumns();
        // calculate
        ws.Calculate();

        saveFileDialog_SaveExcel.Filter = "Excel files (*.xlsx)|*.xlsx";
        var dialogResult = saveFileDialog_SaveExcel.ShowDialog();
        if (dialogResult == DialogResult.OK)
        {
            package.SaveAs(new FileInfo(saveFileDialog_SaveExcel.FileName));
        }

- هادی کشاورز Hadi Keshavarz