將數據導出到Excel C＃

Question

我想用某些列自定義我的Excel輸出結果。現在我有出口到Excel工作好，但它顯示太多列。我想只導出某些列。任何想法如何做到這一點？

public void ExportFilteredHistorydDataToExcel() 
    { 
     try 
     { 
      // getting session data from the grid 
      var claims = (List<ClaimsArchived>)Session["allclaims"]; 

      GridView gv = new GridView(); 
      gv.DataSource = claims; 
      gv.DataBind(); 

      Response.Clear(); 
      Response.Buffer = true; 
      //Response.Charset = ""; 
      //Response.ContentType = "application/vnd.ms-excel"; 

      Response.ContentType = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"; 
      Response.AddHeader("content-disposition", "attachment;filename=filteredHistoryClaims.xls"); 

      StringWriter sw = new StringWriter(); 
      HtmlTextWriter htw = new HtmlTextWriter(sw); 

      gv.RenderControl(htw); 

      Response.Output.Write(sw.ToString()); 
      Response.Flush(); 
      Response.End(); 
     } 
     catch (Exception ex) 
     { 
      Console.WriteLine("There is a problem exporting data to Excel Spreadsheet.", ex); 
     } 
    } 

，我想模型

public partial class ClaimsArchived 
{ 

    public int Claim_ID { get; set; } 
    public String Provider 
    { 
     get 
     { 
      if (Provider_Group == 73) 
      { 
       return "CEP"; 
      } 
      else if (Provider_Group == 72) 
      { 
       return "CASE"; 
      } 
      else 
      { 
       return "???"; 
      } 
     } 
    } 

    [Display(Name = "Provider Num")] 
    public Nullable<int> Provider_Group { get; set; } 

    public string Facility { get; set; } 
    public string Physician { get; set; } 

    [Display(Name = "Last")] 
    public string Patient_Last { get; set; } 

    [Display(Name = "First")] 
    public string Patient_First { get; set; } 

    [Display(Name = "DOB")] 
    [DataType(DataType.Date)] 
    [DisplayFormat(DataFormatString = "{0:MM/dd/yyyy}", ApplyFormatInEditMode = true)] 
    public Nullable<System.DateTime> Patient_DOB { get; set; } 

    public int Age 
    { 
     get 
     { 
      DateTime date = DateTime.Today; 
      DateTime birthday = Convert.ToDateTime(Patient_DOB); 

      int tempage = date.Year - birthday.Year; 

      return tempage; 
     } 
    } 

    public string Funding_Type 
    { 
     get 
     { 
      DateTime date = DateTime.Today; 
      DateTime birthday = Convert.ToDateTime(Patient_DOB); 

      int compareAge = date.Year - birthday.Year; 
      if (compareAge > 20) 
      { 
       return "MADDY"; 
      } 
      else 
      { 
       return "RICHIE"; 
      } 
     } 
    } 

    [Display(Name = "Gender")] 
    public string Patient_Gender { get; set; } 

    /// <summary> 
    /// temp remove that from the output and export -- SSNs are sensitive information so that's why disabled in this case 
    /// </summary> 
    [Display(Name = "SSN")] 
    [DisplayFormat(ApplyFormatInEditMode = false, DataFormatString = "{0:###-##-####}")] 
    public Nullable<int> Patient_SSN { get; set; } 

    [Display(Name = "Zip")] 
    public string Patient_Zip { get; set; } 
    public string Diagnosis { get; set; } 

    [Display(Name = "Total Charges")] 
    public Nullable<decimal> Total_Charges { get; set; } 

    [Display(Name = "EMS Rate")] 
    public Nullable<decimal> Total_EMS { get; set; } 
    public bool Paid { get; set; } 
    //public bool Paid { get; set; } 

    [Display(Name = "Paid Date")] 
    [DisplayFormat(DataFormatString = "{0:MM/dd/yyyy}", ApplyFormatInEditMode = true)] 
    public Nullable<System.DateTime> Paid_date { get; set; } 

    [Display(Name = "Unique ID")] 
    public Nullable<int> Unique_ID { get; set; } 

    [Display(Name = "Import Date")] 
    [DisplayFormat(DataFormatString = "{0:MM/dd/yyyy}", ApplyFormatInEditMode = true)] 
    public Nullable<System.DateTime> ImportDate { get; set; } 

    [Display(Name = "Arh Date")] 
    [DisplayFormat(DataFormatString = "{0:MM/dd/yyyy}", ApplyFormatInEditMode = true)] 
    public Nullable<System.DateTime> ArchiveDate { get; set; } 

    [Display(Name = "Archived")] 
    public bool ArchiveYesNo { get; set; } 
} 

從Excel的像SSN，進口日期，拱門日期，並存檔列取出四列。任何想法？謝謝！

Answer 1

  // hiding the column header -- Added code start here --- 
      gv.HeaderRow.Cells[0].Visible = false; 
      // hiding the column detail 
      for (int i = 0; i < gv.Rows.Count; i++) 
      { 
       GridViewRow row = gv.Rows[i]; 
       row.Cells[0].Visible = false; 
      } 
      // ------------------ Added code ended here ------ 

      // following code are the same 
      gv.RenderControl(htw); 

      Response.Output.Write(sw.ToString()); 
      Response.Flush(); 
      Response.End();