My previous article was about how to download records from the database in Excel files.You can check this link .Today, in this article, I will explain how to upload records from Excel files to the database using Stored Procedure, and also check all types of validations. I will check required filed validation, Excel format validation, null validation, if the employee number is unique (here I used an example of employee records) etc.

Step1

First, let's create a table.

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Then, let's create stored procedure. In this stored procedure, we have created a procedure for inserting records and checking for duplicate employee numbers.

  1. Create proc usp_InsertNewEmployeeDetails
  2. (
  3. @EmployeeNo int = null,
  4. @FirstName varchar(50) = null,
  5. @LastName varchar(50) = null,
  6. @DateOfBirth datetime = null,
  7. @Address varchar(50) = null,
  8. @MobileNo varchar(200) = null,
  9. @PostelCode varchar(50) = null,
  10. @EmailId varchar(50) = null
  11. )
  12. as
  13. begin
  15. IF EXISTS(select EmployeeNo from EmployeeInfo where EmployeeNo=@EmployeeNo)
  16. return 0
  17. ELSE
  18. begin
  19. Insert into EmployeeInfo(
  20. EmployeeNo,FirstName,LastName,
  21. DateOfBirth,Address,MobileNo,PostelCode,
  22. EmailId
  23. )
  24. values
  25. (
  26. @EmployeeNo,@FirstName,@LastName,
  27. @DateOfBirth,@Address,@MobileNo,@PostelCode,
  28. @EmailId)
  29. end
  30. end

Step2

Now, we have to add the table in an MVC application. I have used Entity Framework with LINQ query.

  • For that, I created an MVC application and went through, File->New ->Web application ->select MVC ->OK.
  • Go to Model folder ->Right click -> Add -> New item -> ADO.NET Entity Data Model -> click Add -> select database first approach->Click Next.
  • Select "New Connection" and give the connection details, then select database ->Click OK.
  • Choose tables and stored procedure and click OK.

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Step3

Now, we have to download LinqToExcel.dll file; so for this, right click on project file. After that, select 'Manage NueGet Package' and search for LinqToExcel. When found, download this dll.

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Step4

Now, we have to create a Controller class. First, put a namespace.

using LinqToExcel;

Then, create an action method for View.

  1. public ActionResult ExcelUpload()
  2. {
  3. return View();
  4. }

Now, we have to create a View - right click the action name, select View, and click OK.

  1. <div align="center">
  2. @if (ViewBag.Message != null)
  3. {
  4. <span class="alert alert-warning"> @ViewBag.Message</span>
  5. }
  7. <div align="right" class="btn btn-default">
  8. @using (Html.BeginForm("UploadExcel", "ExcelDemo", FormMethod.Post, new { @enctype = "multipart/form-data" }))
  9. {
  10. <input type="file" id="fileUpload" class="btn btn-primary" name="FileUpload" /><br />
  11. <input type="submit" class="btn btn-primary" name="UploadNewEmployee" id="fileUploadExcel" value="Upload New Employee Details" />
  12. }
  13. </div>
  14. </div>

Here, I have used sweetAlert to check the required field validation of file upload. So first, we have to download library for this and add the following code.

  1. <link href="~/Scripts/sweetalert.css" rel="stylesheet" />
  2. <script src="~/Scripts/jquery-1.10.2.js"></script>
  3. <script src="~/Scripts/sweetalert.js"></script>
  4. <script>
  6. $('#fileUploadExcel').click(function (e) {
  7. if ($('#fileUpload').val() === "")
  8. {
  9. sweetAlert("Oops...!!!", "Please select file", "error");
  10. return false;
  11. }
  13. });
  15. </script>

Click without selecting a file, then see the output.

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Step5

Now, let's write code for insert recods from Excel file to Controller. In this, first I checked Excel file fomat.

  1. if (FileUpload.ContentType == "application/vnd.ms-excel" || FileUpload.ContentType == "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet")
  2. {
  3. string filename = FileUpload.FileName;
  5. if (filename.EndsWith(".xlsx"))
  6. {
  7. }

Next I checked Uploaded Excel file

  1. string targetpath = Server.MapPath("~/DetailFormatInExcel/");
  2. FileUpload.SaveAs(targetpath + filename);
  3. string pathToExcelFile = targetpath + filename;
  4. string sheetName = "Sheet1";

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Then I checked if employee number is null or not

  1. if (a.EmployeeNo != null)
  2. {
  3. }

I created a separate method for postdata

  1. public int PostExcelData(int employeeNo,string firstName, string lastName, DateTime? dateOfBirth, string address,string mobileNo,string postelCode, string emailId)
  2. {
  3. EmployeeDBEntities DbEntity = new EmployeeDBEntities();
  4. var InsertExcelData = DbEntity.usp_InsertNewEmployeeDetails(employeeNo,firstName, lastName, dateOfBirth,address,mobileNo,postelCode, emailId);
  6. return InsertExcelData;
  7. }

I called the postdata method

  1. int resullt = PostExcelData(a.EmployeeNo, a.FirstName, a.LastName, myBirthdate, a.Address, a.MobileNo, a.PostelCode, a.EmailId);
  2. if (resullt <= 0)
  3. {
  4. data = "Hello User, Found some duplicate values! Only unique employee number has inserted and duplicate values(s) are not inserted";
  5. ViewBag.Message = data;
  6. continue;

Then I checked for duplicate records also. It will automatically skip the duplicate records.

So now, our final code will be like below.

  1. [HttpPost]
  2. public ActionResult UploadExcel(EmployeeInfo objEmpDetail, HttpPostedFileBase FileUpload)
  3. {
  5. EmployeeDBEntities objEntity = new EmployeeDBEntities();
  6. string data = "";
  7. if (FileUpload != null)
  8. {
  9. if (FileUpload.ContentType == "application/vnd.ms-excel" || FileUpload.ContentType == "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet")
  10. {
  11. string filename = FileUpload.FileName;
  13. if (filename.EndsWith(".xlsx"))
  14. {
  15. string targetpath = Server.MapPath("~/DetailFormatInExcel/");
  16. FileUpload.SaveAs(targetpath + filename);
  17. string pathToExcelFile = targetpath + filename;
  19. string sheetName = "Sheet1";
  21. var excelFile = new ExcelQueryFactory(pathToExcelFile);
  22. var empDetails = from a in excelFile.Worksheet<EmployeeInfo>(sheetName) select a;
  23. foreach (var a in empDetails)
  24. {
  25. if (a.EmployeeNo != null)
  26. {
  28. DateTime? myBirthdate = null;
  31. if (a.MobileNo.Length > 12)
  32. {
  33. data = "Phone number should be 10 to 12 disit";
  34. ViewBag.Message = data;
  36. }
  38. myBirthdate = Convert.ToDateTime(a.DateOfBirth);
  41. int resullt = PostExcelData(a.EmployeeNo, a.FirstName, a.LastName, myBirthdate, a.Address, a.MobileNo, a.PostelCode, a.EmailId);
  42. if (resullt <= 0)
  43. {
  44. data = "Hello User, Found some duplicate values! Only unique employee number has inserted and duplicate values(s) are not inserted";
  45. ViewBag.Message = data;
  46. continue;
  48. }
  49. else
  50. {
  51. data = "Successful upload records";
  52. ViewBag.Message = data;
  53. }
  54. }
  56. else
  57. {
  58. data = a.EmployeeNo + "Some fields are null, Please check your excel sheet";
  59. ViewBag.Message = data;
  60. return View("ExcelUpload");
  61. }
  63. }
  64. }
  66. else
  67. {
  68. data = "This file is not valid format";
  69. ViewBag.Message = data;
  70. }
  71. urn View("ExcelUpload");
  72. }
  73. else
  74. {
  76. data = "Only Excel file format is allowed";
  78. ViewBag.Message = data;
  79. return View("ExcelUpload");
  81. }
  83. }
  84. else
  85. {
  87. if (FileUpload == null)
  88. {
  89. data = "Please choose Excel file";
  90. }
  92. ViewBag.Message = data;
  93. urn View("ExcelUpload");
  94. }
  95. }
  97. public int PostExcelData(int employeeNo,string firstName, string lastName, DateTime? dateOfBirth, string address,string mobileNo,string postelCode, string emailId)
  98. {
  99. EmployeeDBEntities DbEntity = new EmployeeDBEntities();
  100. var InsertExcelData = DbEntity.usp_InsertNewEmployeeDetails(employeeNo,firstName, lastName, dateOfBirth,address,mobileNo,postelCode, emailId);
  102. return InsertExcelData;
  103. }

So finally, the coding part is done. Now, we will check if the Excel file uploads or not.

Now, I have created an Excel file and filled in some records.

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After uploading this Excel file, we can check in the database to see whether our records are inserted or not.

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That's it. Thanks for reading this article. I hope you enjoyed it.