前臺代碼
<asp:Button runat="server" ID="btnDC" Text ="導出CSV" οnclick="btnDC_Click"/>
後臺代碼
protected void btnDC_Click(object sender, EventArgs e)
{
DataTable dt = WorkOrderQuery.FindMyOrderList(358, 1, 100, "");//數據源
try
{
StringWriter swCSV = new StringWriter();
//列名
swCSV.WriteLine("工單編號,工單標題,工單類型,創建時間,當前狀態,當前節點名稱,當前處理人 ");
//遍歷datatable導出數據
foreach (DataRow drTemp in dt.Rows)
{
StringBuilder sbText = new StringBuilder();
sbText = AppendCSVFields(sbText, drTemp["WORK_ORDER_ID"].ToString());
sbText = AppendCSVFields(sbText, drTemp["work_order_title"].ToString());
sbText = AppendCSVFields(sbText, drTemp["type_name"].ToString());
sbText = AppendCSVFields(sbText, drTemp["create_time"].ToString());
sbText = AppendCSVFields(sbText, drTemp["status_name"].ToString());
sbText = AppendCSVFields(sbText, drTemp["point_name"].ToString());
sbText = AppendCSVFields(sbText, drTemp["username"].ToString());
//去掉尾部的逗號
sbText.Remove(sbText.Length - 1, 1);
//寫datatable的一行
swCSV.WriteLine(sbText.ToString());
}
//下載文件
DownloadFile(Response, swCSV.GetStringBuilder(), "RuleDaySum.csv");
swCSV.Close();
Response.End();
}
catch (Exception ex)
{
throw ex;
}
}
/// <summary>
/// csv添加逗號 用來區分列
/// </summary>
/// <param name="argFields">字段</param>
/// <returns>添加後內容</returns>
private StringBuilder AppendCSVFields(StringBuilder argSource, string argFields)
{
return argSource.Append(argFields.Replace(",", " ").Trim()).Append(",");
}
/// <summary>
/// 彈出下載框
/// </summary>
/// <param name="argResp">彈出頁面</param>
/// <param name="argFileStream">文件流</param>
/// <param name="strFileName">文件名</param>
public static void DownloadFile(HttpResponse argResp, StringBuilder argFileStream, string strFileName)
{
try
{
string strResHeader = "attachment; filename=" + Guid.NewGuid().ToString() + ".csv";
if (!string.IsNullOrEmpty(strFileName))
{
strResHeader = "inline; filename=" + strFileName;
}
argResp.AppendHeader("Content-Disposition", strResHeader);//attachment說明以附件下載,inline說明在線打開
argResp.ContentType = "application/ms-excel";
argResp.ContentEncoding = Encoding.GetEncoding("GB2312"); // Encoding.UTF8;//
argResp.Write(argFileStream);
}
catch (Exception ex)
{
throw ex;
}
}