Question

c#导出EXCEL设置单元格格式？

封装好的方法不会改 只会设置一个列宽 想设置宽度自适应和外边框





Answer 1

//导出Excel
private void ExportExcel(string fileName, System.Data.DataTable myDGV, string title)
{
string saveFileName = "";
System.Windows.Forms.SaveFileDialog saveDialog = new System.Windows.Forms.SaveFileDialog();
saveDialog.DefaultExt = "xlsx";
saveDialog.Filter = "Excel文件|*.xlsx";
saveDialog.FileName = fileName;
saveDialog.ShowDialog();
saveFileName = saveDialog.FileName;
if (saveFileName.IndexOf(":") < 0) return; //被点了取消
Microsoft.Office.Interop.Excel.Application xlApp = new Microsoft.Office.Interop.Excel.Application();
if (xlApp == null)
{
System.Windows.MessageBox.Show("无法创建Excel对象，可能您的电脑未安装Excel");
return;
}
Microsoft.Office.Interop.Excel.Workbooks workbooks = xlApp.Workbooks;
Microsoft.Office.Interop.Excel.Workbook workbook = workbooks.Add(Microsoft.Office.Interop.Excel.XlWBATemplate.xlWBATWorksheet);
Microsoft.Office.Interop.Excel.Worksheet worksheet = (Microsoft.Office.Interop.Excel.Worksheet)workbook.Worksheets[1];//取得sheet1

//操作单元格
Range rangeLecture = worksheet.Range[worksheet.Cells[1, 1], worksheet.Cells[1, myDGV.Columns.Count]];
rangeLecture.Application.DisplayAlerts = false;
rangeLecture.Merge(Missing.Value);
rangeLecture.Application.DisplayAlerts = true;
worksheet.Cells[1, 1] = title;

//写入标题
for (int i = 0; i < myDGV.Columns.Count; i++)
{
worksheet.Cells[2, i + 1] = myDGV.Columns[i].ColumnName;
}
//写入数值
for (int r = 0; r < myDGV.Rows.Count; r++)
{
for (int i = 0; i < myDGV.Columns.Count; i++)
{
worksheet.Cells[r + 3, i + 1] = myDGV.Rows[r][i].ToString();
}
System.Windows.Forms.Application.DoEvents();
}
worksheet.Columns.EntireColumn.AutoFit();//列宽自适应
if (saveFileName != "")
{
try
{
workbook.Saved = true;
workbook.SaveCopyAs(saveFileName);
}
catch (Exception ex)
{
System.Windows.MessageBox.Show("导出文件时出错,文件可能正被打开！\n" + ex.Message);
}
}
xlApp.Quit();
GC.Collect();//强行销毁
//System.Windows.Forms.MessageBox.Show("文件保存成功", "信息提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
}

Answer 2

你百度啊，你这个应该是NPOI，好久没用了，记不住了

Answer 3

参考spire.xls的系列文章：C# 设置Excel自适应列宽；C# 设置Excel单元格边框

Answer 4

录制个宏，看宏里参数怎么写的，C#的也差不多。毕竟底层都是调的com接口。