public IHttpActionResult PostQuestionBank()
{
string excelFile = null;
var httpRequest = HttpContext.Current.Request;
string filePath = string.Empty;
// var postedFile = httpRequest.Files["Excel"];
var postedFile = httpRequest.Files[0];
try
{
if (ModelState.IsValid)
{
if (postedFile != null)
{
string path = HttpContext.Current.Server.MapPath("~/Uploads/");
if (!Directory.Exists(path))
{
Directory.CreateDirectory(path);
}
excelFile = new String(Path.GetFileNameWithoutExtension(postedFile.FileName).Take(10).ToArray()).Replace(" ", "-");
excelFile = excelFile + DateTime.Now.ToString("yymmssfff") + Path.GetExtension(postedFile.FileName);
filePath = path + excelFile;
postedFile.SaveAs(filePath);
string extension = Path.GetExtension(postedFile.FileName);
string conString = string.Empty;
switch (extension)
{
case ".xls": //Excel 97-03.
conString = ConfigurationManager.ConnectionStrings["Excel03ConString"].ConnectionString;
break;
case ".xlsx": //Excel 07 and above.
conString = ConfigurationManager.ConnectionStrings["Excel07ConString"].ConnectionString;
break;
default:
break;
}
DataTable dt = new DataTable();
conString = string.Format(conString, filePath);
using (OleDbConnection connExcel = new OleDbConnection(conString))
{
using (OleDbCommand cmdExcel = new OleDbCommand())
{
using (OleDbDataAdapter odaExcel = new OleDbDataAdapter())
{
cmdExcel.Connection = connExcel;
//Get the name of First Sheet.
connExcel.Open();
DataTable dtExcelSchema;
dtExcelSchema = connExcel.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, null);
string sheetName = dtExcelSchema.Rows[0]["TABLE_NAME"].ToString();
connExcel.Close();
//Read Data from First Sheet.
connExcel.Open();
cmdExcel.CommandText = "SELECT * From [" + sheetName + "]";
odaExcel.SelectCommand = cmdExcel;
odaExcel.Fill(dt);
connExcel.Close();
}
}
}
//Insert records to database table.
OASContext ctx = new OASContext();
foreach (DataRow row in dt.Rows)
{
ctx.QuestionBanks.Add(new QuestionBank
{
QuestionBankID = Convert.ToInt32(row["QuestionBankID"]),
Question = Convert.ToString(row["Question"]),
Option1 = Convert.ToString(row["Option1"]),
Option2 = Convert.ToString(row["Option2"]),
Option3 = Convert.ToString(row["Option3"]),
Option4 = Convert.ToString(row["Option4"]),
Answer = Convert.ToString(row["Answer"]),
Marks = Convert.ToInt32(row["Marks"]),
DifficultyLevelID = Convert.ToInt32(row["DifficultyLevelID"]),
TopicID = Convert.ToInt32(row["TopicID"])
});
}
ctx.SaveChanges();
return(Ok());
}
else
{
return(NotFound());
}
}
else
{
return(BadRequest(ModelState));
}
}
catch (FileNotFoundException)
{
return(BadRequest(ModelState));
}
}
