[英]Append data to excel sheet if created using ClosedXML in c#
[英]How to append a new row to an Excel file using C# and ClosedXML?
我應該在現有的Excel文件中添加一個新行。 該任務由兩部分組成:
這是我的代碼:
private static void ExportToEXCEL(DataTable dt, string paymentStoryPath)
{
if (File.Exists(paymentStoryPath))
{
XLWorkbook currentWorkbook = new XLWorkbook(paymentStoryPath);
IXLWorksheet currentWsh = currentWorkbook.Worksheet("Payment history");
//IXLCell cellForNewData = index.Cell(index.LastRowUsed().RowNumber() + 1, 1);
IXLRow rowForNewData = currentWsh.Row(currentWsh.LastRowUsed().RowNumber()+1);
rowForNewData.InsertRowsBelow(1);
rowForNewData.Value = dt;
currentWorkbook.Save();
}
else
{
//not exist
XLWorkbook wb = new XLWorkbook();
wb.Worksheets.Add(dt, "Payment history");
wb.SaveAs(paymentStoryPath);
}
}
有什么問題,我的代碼應該改變什么?
要添加DataTable
使用InsertTable()
方法:
XLWorkbook currentWorkbook = new XLWorkbook(paymentStoryPath);
IXLWorksheet currentWsh = currentWorkbook.Worksheet("Payment history");
IXLCell cellForNewData = currentWsh.Cell(currentWsh.LastRowUsed().RowNumber() + 1, 1);
cellForNewData.InsertTable(dt);
currentWorkbook.Save();
我從我的一個將DataTable
插入Excel的項目中獲得了以下代碼。
//insert rows below a range from the cell going table rows down
ws.Range(
cell.Address.RowNumber
, cell.Address.ColumnNumber
, cell.Address.RowNumber + DocDataSet.Tables[tableNo].Rows.Count
, cell.Address.ColumnNumber)
.InsertRowsBelow(DocDataSet.Tables[tableNo].Rows.Count);
//InsertData returns a range covering the inserted data
var ra = ws.Cell(cell.Address.RowNumber, cell.Address.ColumnNumber)
.InsertData(DocDataSet.Tables[tableNo].AsEnumerable());
//apply the style of the table token cell to the whole range
ra.Style = cell.Style;
自從我編寫它以來已經有一段時間了,但據我所知,創建一個范圍將覆蓋將填充的行和列。 Cell
對象有一個InsertData
方法,可以接受任何IEnumerable
源。
你可能不需要ws.Range
行,我插入模板所以我必須先創建空間。
我拿了@raidri的例子,然后又向前邁了一步,我有一個擴展方法來處理這個問題。
public static class Extensions
{
public static void ToExcelFile(this DataTable dataTable, string filename, string worksheetName = "Sheet1")
{
using(var workbook = new XLWorkbook())
{
workbook.Worksheets.Add(dataTable, worksheetName);
workbook.SaveAs(filename);
}
}
}
使用
myDataTable.ToExcelFile(@"C:\temp\myFile.xlsx");
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