使用 AJAX (ASP.NET MVC) 将数据插入数据库

Question

I have table with Question1 - Question10

Here is table syntax

CREATE TABLE [dbo].[QuestionBlocks] (
[Block_ID]     INT            IDENTITY (1, 1) NOT NULL,
[Question1]    NVARCHAR (MAX) NULL,
[Question2]    NVARCHAR (MAX) NULL,
[Question3]    NVARCHAR (MAX) NULL,
[Question4]    NVARCHAR (MAX) NULL,
[Question5]    NVARCHAR (MAX) NULL,
[Question6]    NVARCHAR (MAX) NULL,
[Question7]    NVARCHAR (MAX) NULL,
[Question8]    NVARCHAR (MAX) NULL,
[Question9]    NVARCHAR (MAX) NULL,
[Question10]   NVARCHAR (MAX) NULL,

Also I have DropDownLists for those questions

Here is it's looks like

I need on button click get data from DropdownLists and write Question1-Question10 rows in Database.

Here is My Controller

public ActionResult Index()
    {
        ViewBag.Question1 = new  SelectList(db.Questions,"QuestionId","question");
        ViewBag.Question2 = new SelectList(db.Questions, "QuestionId", "question");
        ViewBag.Question3 = new SelectList(db.Questions, "QuestionId", "question");
        ViewBag.Question4 = new SelectList(db.Questions, "QuestionId", "question");
        ViewBag.Question5 = new SelectList(db.Questions, "QuestionId", "question");
        ViewBag.Question6 = new SelectList(db.Questions, "QuestionId", "question");
        ViewBag.Question7 = new SelectList(db.Questions, "QuestionId", "question");
        ViewBag.Question8 = new SelectList(db.Questions, "QuestionId", "question");
        ViewBag.Question9 = new SelectList(db.Questions, "QuestionId", "question");
        ViewBag.Question10 = new SelectList(db.Questions, "QuestionId", "question");

        return View(db.Questions.ToList());
    }

And here is View

  <div class="title2" style="margin-top: 15px; margin-left: 15px; margin-bottom: 15px; padding-top: 10px">
                @Html.DropDownList("Question1", null, "Вопрос 1", htmlAttributes: new {@class = "form-control", @style = "height:40px;margin-bottom: 20px;",placeholder="lol"})
                @Html.DropDownList("Question2", null, "Вопрос 2", htmlAttributes: new {@class = "form-control", @style = "height:40px; margin-bottom: 20px;"})
                @Html.DropDownList("Question3", null, "Вопрос 3", htmlAttributes: new {@class = "form-control", @style = "height:40px; margin-bottom: 20px;"})
                @Html.DropDownList("Question4", null, "Вопрос 4", htmlAttributes: new {@class = "form-control", @style = "height:40px; margin-bottom: 20px;"})
                @Html.DropDownList("Question5", null, "Вопрос 5", htmlAttributes: new {@class = "form-control", @style = "height:40px; margin-bottom: 20px;"})
                @Html.DropDownList("Question6", null, "Вопрос 6", htmlAttributes: new {@class = "form-control", @style = "height:40px; margin-bottom: 20px;"})
                @Html.DropDownList("Question7", null, "Вопрос 7", htmlAttributes: new {@class = "form-control", @style = "height:40px; margin-bottom: 20px;"})
                @Html.DropDownList("Question8", null, "Вопрос 8", htmlAttributes: new {@class = "form-control", @style = "height:40px; margin-bottom: 20px;"})
                @Html.DropDownList("Question9", null, "Вопрос 9", htmlAttributes: new {@class = "form-control", @style = "height:40px; margin-bottom: 20px;"})
                @Html.DropDownList("Question10", null, "Вопрос 10", htmlAttributes: new {@class = "form-control", @style = "height:40px; margin-bottom: 20px;"})
            </div>

I think AJAX can do this, but how I need to write code or where I can write about how to do this?

Thank's

UPDATE

Thank's Prasanna Kumar J for answer

I have one more question

I write function and try to run it by button click I write this code in html

<input id="save" type="button" value="Save" onclick="save();"/>

And this in JS

$(document).ready(function () {
    $('#save').click(function () {
        save();
    });
});

But function doesn't run on button. Where is error?

Answer 1

You're using ASP.NET MVC, so in your questions controller, you can create a [HttpPost] method to handle database updates.

If you're using SQL Server, you can use the classes in the System.Data.SqlClient namespaces and take a look at MSDN documentation with examples .

If you're using MySQL, you can use the MySQL .NET Connector - information available on their site including documentation .

In the database update method, you can use an UPDATE or INSERT query to update the data in the database. To retreive the information, have a <form method="post" action="your_update_page"> and a <input type="submit" /> . This will post the information contained within input fields (with required names equivalent to parameters in update method) to be accessed by your back-end controller to make database updates when triggered.

Answer 2

Try this. In Client Side

function save()
{
 $.ajax({
            type: 'Post',
            dataType: 'Json',
            data: { question1: $('#question1').val(),
                    question2: $('#question2').val(),
                    question3: $('#question3').val(),
                    question4: $('#question4').val(),
                    question5: $('#question5').val(),
                    question6: $('#question6').val(),
                    question7: $('#question7').val(),
                    question8: $('#question8').val(),
                    question9: $('#question9').val(),
                    question10: $('#question10').val()
            },
            url: '@Url.Action("SaveAction", "SaveController")',
            success: function (da) {
                if (da.Result == "Success") {
                 alert('saved sucessfully')


                } else {

                    alert( 'Error'+ da.Message);
                }
            },
            error: function (da) {
                alert('Error');
            }
        });
}

In server Side

  [httppost]
  public ActionResult SaveAction(string question1,string question2,string question3,.....,string question10)
  {
        //do something
 return Json(new { Result = "Success", Message = "Saved Successfully" }, JsonRequestBehavior.AllowGet);
  }