在数据集列中获取特定数据并在 excel 中导出

Question

我的数据集中有 5 列。姓名、年龄、性别、地址和联系电话然后我在数据集中有 3 个数据行

在 excel 中导出时我只需要姓名、地址和联系电话。. 我怎样才能做到这一点？我正在使用 Excel = Microsoft.Office.Interop.Excel; 我只得到第一行..不是数据集中的所有行

这是我获取值的代码

Microsoft.Office.Interop.Excel.Application ExcelAp = new Microsoft.Office.Interop.Excel.Application();
ExcelAp.Application.Workbooks.Add(Type.Missing);
ExcelAp.Columns.ColumnWidth = 25;

int i =0;
foreach( DataRow datarow in DsNow.Tables[0].Rows)
{
      for(i = 0; DsNow.Tables[0].Rows.Count - 1; i ++)
            {
                         ExcelAp.Cells[i + 6, 1] = datarow["name"].ToString();
                         ExcelAp.Cells[i + 6, 2] =datarow["address"].ToString();
                         ExcelAp.Cells[i + 6, 3] =datarow["contactnumber"].ToString(); 
            }
}

请帮忙

Answer 1

当只用一个循环就可以完成时，为什么要同时使用 FOREACH 和 FOR 循环。检查以下代码，稍作修改：

int i =0;
      for(i = 0; DsNow.Tables[0].Rows.Count - 1; i ++)
            {
                  ExcelAp.Cells[i + 6, 1] = DsNow.Tables[0].Rows[i]["name"].ToString();
                  ExcelAp.Cells[i + 6, 2] = DsNow.Tables[0].Rows[i]["address"].ToString();
                  ExcelAp.Cells[i + 6, 3] = DsNow.Tables[0].Rows[i]["contactnumber"].ToString(); 
            }

Answer 2

         Public void Excel()
        {
         Microsoft.Office.Interop.Excel.Application app;
         Workbook workbook = null;
         Worksheet worksheet = null;
         Range range = null;   
         int i,j,k=1;
         app = new Microsoft.Office.Interop.Excel.Application();
         app.Visible = false;
         workbook = app.Workbooks.Add(1);
         worksheet = (Worksheet)workbook.Sheets[1];
         worksheet.Name = "Sheet1";  
         worksheet.Cells.Locked = false;

        //Column1
        j = 1;
        range = worksheet.Rows.get_Range("A" + j.ToString(), "A" + j.ToString());
        range.Font.Size = 11;
        ((Range)worksheet.Cells[j, 1]).EntireColumn.ColumnWidth = 15;
        range.Font.Bold = true;
        range.MergeCells = true;
        range.HorizontalAlignment = Constants.xlCenter;
        //Content
        worksheet.Cells[j, 1] = "Name";

        //Column2
        range = worksheet.Rows.get_Range("B" + j.ToString(), "B" + j.ToString());
        range.Font.Size = 11;
        ((Range)worksheet.Cells[j, 2]).EntireColumn.ColumnWidth = 15;
        range.Font.Bold = true;
        range.MergeCells = true;
        range.HorizontalAlignment = Constants.xlCenter;
        //Content
        worksheet.Cells[j, 2] = "Address";


        //Column3
        range = worksheet.Rows.get_Range("C" + j.ToString(), "C" + j.ToString());
        range.Font.Size = 11;
        ((Range)worksheet.Cells[j, 3]).EntireColumn.ColumnWidth = 15;
        range.Font.Bold = true;
        range.MergeCells = true;
        range.HorizontalAlignment = Constants.xlCenter;
        //Content
        worksheet.Cells[j, 3] = "Contact Number";

       //Loop
        DataTable dt = new DataTable();

        for (i = 0; i < dt.Rows.Count; i++)
       {
            //Column1
            range = worksheet.Rows.get_Range("A" + k.ToString(), "A" + k.ToString());
            worksheet.Cells[k, 1] = dt.Rows[i]["NAME"].ToString();

            //Column2
            range = worksheet.Rows.get_Range("B" + k.ToString(), "B" + k.ToString());
            worksheet.Cells[k, 2] = dt.Rows[i]["ADDRESS"].ToString();

            //Column3
            range = worksheet.Rows.get_Range("C" + k.ToString(), "C" + k.ToString());
            worksheet.Cells[k, 3] = dt.Rows[i]["CONTACT_NUMBER"].ToString();

            k = k +1;
       }

}

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