WPF数据网格导出到excel编码问题答案

【问题标题】：WPF datagrid export to excel encoding problemWPF数据网格导出到excel编码问题
【发布时间】：2019-04-30 11:54:34
【问题描述】：

我想将数据网格行导出到 Excel 文件中。有些信息是英文的，有些信息是 Perisan 的。我进行了很多搜索并测试了两种不同的方式。第一种方式使用 ApplicationCommands.Copy.Execute 来复制数据。这种方式的问题是波斯语中的字符变为??? （问号），即使我使用 utf-8 编码或任何其他编码。我还使用 Microsoft.Office.Interop.Excel.Application 来复制行。这种方式的问题是只复制了 7 个顶行，但通过这种方式解决了编码问题。第一种方式（https://www.codeproject.com/Questions/354557/WPF-DataGrid-to-Excel）如下：

     DgReport.SelectAllCells();
        DgReport.ClipboardCopyMode = DataGridClipboardCopyMode.IncludeHeader;
        ApplicationCommands.Copy.Execute(null, DgReport);
        String resultat = (string)Clipboard.GetData(DataFormats.CommaSeparatedValue);
        String result = (string)Clipboard.GetData(DataFormats.Text);
        DgReport.UnselectAllCells();
        System.IO.StreamWriter file1 = new System.IO.StreamWriter(@"C:\Users\test.csv", false, Encoding.UTF8);
        file1.WriteLine(result.Replace(',', ' '));
        file1.Close();

第二种方式（https://www.codeproject.com/Questions/678267/Data-Export-from-DataGrid-to-Excel-is-not-working）如下。这种方式只需复制 7 顶行，但编码没有问题。

    int i1 = 0;
        int k1 = 1, h = 1;
        string strFullFilePathNoExt = @"C:\Users\TestExcel4.xls";

        var rows = GetDataGridRows(DgReport);
        Microsoft.Office.Interop.Excel.Application ExcelApp = new Microsoft.Office.Interop.Excel.Application();
        Microsoft.Office.Interop.Excel._Workbook ExcelBook;
        Microsoft.Office.Interop.Excel._Worksheet ExcelSheet;
        ExcelBook = (Microsoft.Office.Interop.Excel._Workbook)ExcelApp.Workbooks.Add(1);
        ExcelSheet = (Microsoft.Office.Interop.Excel._Worksheet)ExcelBook.ActiveSheet;
        for (i1 = 1; i1 <= DgReport.Columns.Count; i1++)
        {
            ExcelSheet.Cells[1, i1] = DgReport.Columns[i1 - 1].Header.ToString();
        }
        foreach (DataGridRow r in rows)
        {
            DataRowView rv = (DataRowView)r.Item;
            foreach (DataGridColumn column in DgReport.Columns)
            {
                if (column.GetCellContent(r) is TextBlock)
                {
                    TextBlock cellContent = column.GetCellContent(r) as TextBlock;
                    ExcelSheet.Cells[h + 1, k1] = cellContent.Text.Trim();
                    k1++;
                }

            }
            k1 = 1;
            h++;
        }
        ExcelApp.Visible = false;
        ExcelBook.SaveAs(strFullFilePathNoExt, Microsoft.Office.Interop.Excel.XlFileFormat.xlOpenXMLWorkbook, Missing.Value, Missing.Value, false, false, Microsoft.Office.Interop.Excel.XlSaveAsAccessMode.xlNoChange,
        Microsoft.Office.Interop.Excel.XlSaveConflictResolution.xlUserResolution, true,
        Missing.Value, Missing.Value, Missing.Value);
        ExcelBook.Close(strFullFilePathNoExt, Missing.Value, Missing.Value);
        ExcelSheet = null;
        ExcelBook = null;
        ExcelApp = null;
    }
     public IEnumerable<DataGridRow> GetDataGridRows(DataGrid grid)
    {
        var itemsSource = grid.ItemsSource as IEnumerable;
        if (null == itemsSource) yield return null;
        foreach (var item in itemsSource)
        {
            var row = grid.ItemContainerGenerator.ContainerFromItem(item) as DataGridRow;
            if (null != row) yield return row;
        }

    }

我定义数据网格的方式如下：

       <DataGrid Name="DgReport" IsReadOnly="True"  HeadersVisibility="Column" ItemsSource="{Binding}" ScrollViewer.HorizontalScrollBarVisibility="Visible"  AutoGenerateColumns="False" SelectionChanged="DgReport_SelectionChanged" FlowDirection="RightToLeft" ></DataGrid>

我填充数据网格的方式是将数据从数据库发送到一个名为：报告dt然后

     DgReport.DataContext = Reportdt;
     DataGridTextColumn c3 = new DataGridTextColumn();
     Binding b3 = new Binding("FromNumber");
      c3.Binding = b3;        
      c3.CanUserResize = false;
      DgReport.Columns.Add(c3);

有什么想法吗？

【问题讨论】：

你查看过 open xml sdk for office/excel 吗？
谢谢你亲爱的凯文库克。我通过使用数据表解决了这个问题。

标签： wpf datagrid export-to-excel wpfdatagrid

【解决方案1】：

我是这样解决问题的：

 string strFullFilePathNoExt = @"MyFile_" + DateTime.Now.Year + DateTime.Now.Month + DateTime.Now.Day + DateTime.Now.Hour + DateTime.Now.Minute + ".xls";

                var rows = GetDataGridRows(DgReport);
                Microsoft.Office.Interop.Excel.Application ExcelApp = new Microsoft.Office.Interop.Excel.Application();
                Microsoft.Office.Interop.Excel._Workbook ExcelBook;
                Microsoft.Office.Interop.Excel._Worksheet ExcelSheet2;
                ExcelBook = (Microsoft.Office.Interop.Excel._Workbook)ExcelApp.Workbooks.Add(1);
                ExcelSheet2 = (Microsoft.Office.Interop.Excel._Worksheet)ExcelBook.ActiveSheet;

                ExcelSheet2.Cells[1, 6] = "Col6";
                ExcelSheet2.Cells[1, 5] = "Col5";
                ExcelSheet2.Cells[1, 1].Value = " Col1";
                ExcelSheet2.Cells[1, 3].Value = "Col3";
                ExcelSheet2.Cells[1, 2].Value = "Col2";
                ExcelSheet2.Cells[1, 4].Value = "Col4";

                for (int Idx = 0; Idx < Reportdt.Rows.Count; Idx++)
                {

                    //   ws.Range["A2"].Offset[Idx].Resize[1, dt.Columns.Count].Value = dt.Rows[Idx].ItemArray[14];
                    ExcelSheet2.Cells[Idx + 2, 6].Value = Reportdt.Rows[Idx].ItemArray[5];
                    ExcelSheet2.Cells[Idx + 2, 5].Value = Reportdt.Rows[Idx].ItemArray[13];
                    ExcelSheet2.Cells[Idx + 2, 1].Value = Reportdt.Rows[Idx].ItemArray[14];
                    ExcelSheet2.Cells[Idx + 2, 1].NumberFormat = "############";
                    ExcelSheet2.Cells[Idx + 2, 3].Value = Reportdt.Rows[Idx].ItemArray[16];
                    ExcelSheet2.Cells[Idx + 2, 2].Value = Reportdt.Rows[Idx].ItemArray[18];
                    //ExcelSheet2.Cells[Idx + 1, 6].Value = Reportdt.Rows[Idx].ItemArray[18];
                    ExcelSheet2.Cells[Idx + 2, 4].Value = Reportdt.Rows[Idx].ItemArray[17];
                }

                ExcelApp.Visible = false;
                ExcelBook.SaveAs(strFullFilePathNoExt, Microsoft.Office.Interop.Excel.XlFileFormat.xlOpenXMLWorkbook, Missing.Value, Missing.Value, false, false, Microsoft.Office.Interop.Excel.XlSaveAsAccessMode.xlNoChange,
                Microsoft.Office.Interop.Excel.XlSaveConflictResolution.xlUserResolution, true,
                Missing.Value, Missing.Value, Missing.Value);
                ExcelBook.Close(strFullFilePathNoExt, Missing.Value, Missing.Value);
                ExcelSheet2 = null;
                ExcelBook = null;
                ExcelApp = null;

【讨论】：