public static void ProcessExport(HttpContext context)
{
IList <string> columnFields;
IDataExportProvider provider;
string extension;
string portal = context.Request["portal"];
string columns = context.Request["columns"];
//获取导出提供者
switch (context.Request["exportformat"] ?? "excel")
{
default:
case "excel":
provider = new LocaledExcelExportProvider();
extension = "xls";
break;
case "csv":
provider = new CsvExportProvider();
extension = "csv";
break;
case "txt":
provider = new TextExportProvider();
extension = "txt";
break;
}
//获取列名
// Regex reg = new Regex("^export_fields\\[\\d+\\]$", RegexOptions.IgnoreCase);
columnFields = new List <string>();
// foreach (string key in context.Request.QueryString.Keys)
// {
// if (reg.IsMatch(key))
// {
// columnFields.Add(context.Request.QueryString[key]);
// }
// }
IDataExportPortal _portal = ExportManager.GetPortal(context.Request.QueryString["portal"]);
if (_portal == null)
{
throw new ArgumentNullException("_portal");
}
ExportParams parameter = DataExportDirector.GetExportParams(context.Request["params"], columnFields.ToArray());
byte[] bytes = DataExportDirector.Export(_portal, parameter, provider);
context.Response.BinaryWrite(bytes);
context.Response.ContentType = "application/octet-stream";
context.Response.AppendHeader("Content-Disposition", String.Format("attachment;filename=\"{0:yyyyMMdd-hhssfff}.{1}\"",
DateTime.Now,
extension));
}
public static string Setup(string portal)
{
//todo: need refactor export manager
IDataExportPortal dp = ExportManager.GetPortal(portal);
return(WebExportOptionUIBuilder.BuildColumnCheckHtml(dp));
}
public static string GetExportData(HttpContext context)
{
IDataExportPortal portal = ExportManager.GetPortal(context.Request.QueryString["portal"]);
ExportParams parameter = DataExportDirector.GetExportParams(
context.Request["params"], null);
int pageIndex, pageSize;
if (context.Request["page"] != null)
{
int.TryParse(context.Request["page"], out pageIndex);
parameter.Parameters.Add("pageIndex", pageIndex);
}
if (context.Request["rows"] != null)
{
int.TryParse(context.Request["rows"], out pageSize);
parameter.Parameters.Add("pageSize", pageSize);
}
int totalCount;
DataTable dt = portal.GetShemalAndData(parameter.Parameters, out totalCount);
return(JsonConvert.SerializeObject(new { total = totalCount, rows = dt }));
}
