Tuesday 26 May 2015

Editing Modal and Update modal in Asp.Net MVC

In previous article we learn how to create a business object modal and how to insert data in database .In this article we will learn how to Edit data modal on edit click event . Before proceeding this tutorial go to this

Editing  Data modal
We want that when we click on EDIT link it should render to the Index Action method of StudentController , with specific ID .
So for that first create a Action method for this and create a view for editing these data.
Action method will be like
        public ActionResult Edit(int ID)
            Student student = new Student();
            BusinessLogic BL = new BusinessLogic();
            Student _student = BL.student.Where(c => c.StudentID == ID).SingleOrDefault();
            return View(student);

After that we need for a View  , so create a Edit View by right click on this action method and add a view

Delete the following script from the view
@section Scripts 

After that View Code will be like following
@model BusinessLayer.Student

    ViewBag.Title = "Edit";


<div style = "font-family:Arial>
@using (Html.BeginForm()) {


        @Html.HiddenFor(model => model.StudentID)

        <div class="editor-label">
            @Html.LabelFor(model => model.StudentName)
        <div class="editor-field">
            @Html.EditorFor(model => model.StudentName)
            @Html.ValidationMessageFor(model => model.StudentName)

        <div class="editor-label">

            @Html.LabelFor(model => model.Gender)
        <div class="editor-field">
            @Html.DropDownList("Gender", new List<SelectListItem>
            new SelectListItem { Text = "Male", Value="Male" },
            new SelectListItem { Text = "Female", Value="Female" }
            }, "Select Gender")


        <div class="editor-label">
            @Html.LabelFor(model => model.StudentClass)
        <div class="editor-field">
            @Html.EditorFor(model => model.StudentClass)
            @Html.ValidationMessageFor(model => model.StudentClass)

            <input type="submit" value="Save" />

    @Html.ActionLink("Back to List", "Index")

Run you application you will see All the data from database in grid like this

When we will click on Edit link it will redirect to EDIT View and look like that

Here you edit the data and click on Save button you will see updated value
Updating  Datamodal
Step(1) : -Now if we click on Save button it gives error because The edit method is using “[HttpGet]” attribute means that this action result Edit method is only accept get request.
For updating the Edit value in database, first create the stored procedure for update ion, So Stored procedure will be like following

Create procedure UpdateStudentInfo     
@StudentID int,
@StudentName nvarchar(50),     
@Gender nvarchar (10),     
@SchoolName nvarchar (50)
 Update StudentInfo Set
 StudentName = @StudentName,
 Gender = @Gender,
 SchoolName = @SchoolName
 Where StudentID = @StudentID

Step(2): Now go to the BussinessLayer Library project and in BusinessLogic.cs class add a save function, For saving the data into databse.
public void SaveStudentInfo(Student student)
            string connectionString =

            using (SqlConnection con = new SqlConnection(connectionString))
                SqlCommand cmd = new SqlCommand("UpdateStudentInfo", con);
                cmd.CommandType = CommandType.StoredProcedure;

                SqlParameter studentId = new SqlParameter();
                studentId.ParameterName = "@StudentID";
                studentId.Value = student.StudentID;

                SqlParameter studentName = new SqlParameter();
                studentName.ParameterName = "@StudentName";
                studentName.Value = student.StudentName;

                SqlParameter Gender = new SqlParameter();
                Gender.ParameterName = "@Gender";
                Gender.Value = student.Gender;

                SqlParameter schoolname = new SqlParameter();
                schoolname.ParameterName = "@SchoolName";
                schoolname.Value = student.StudentClass;



Step(3): - Go to Student Controller and add a Edit post method for updating the value. Method code will like following
        public ActionResult Edit()
            if (ModelState.IsValid)
                Student student = new Student();
                BusinessLogic BL = new BusinessLogic();

                return RedirectToAction("Index");
            return View();

Step(4): Now run your application and click on edit button change the value and save it .. you will see updated value.

After saving edited value will look like this

1 comment:

  1. I'm not getting previous data while editing the same entry on Edit View


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