update operation for image uploading

C# Corner

Indu Yadav

9y890.NET

when i am performing update operation in mvc4 using razor it gives value at [HttpGet]

but at [HttpPost] it gives null..............so how to perform edit operation.

please give me it's code..........i tried many times to do it

8 Replies

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Ramesh Palanivel9y ago
Accepted answer
Hi Indu,

Can you share your code or Images , It help us to give solution for your query!...
Indu Yadav9y ago
sir when post the value then image is not updating while in [HttpGet] Image has some value
Indu Yadav9y ago
sir please check it again ...............because it is not updating
[HttpGet]
public ActionResult EditData(int Candidate_Id)
{
var x = (from c in context.Applications where c.Candidate_Id == Candidate_Id select c).FirstOrDefault();
Application pro = new Models.Application();
pro.Candidate_Id = x.Candidate_Id;
pro.Name = x.Name;
pro.Father_Name = x.Father_Name;
pro.Photograph = x.Photograph;
pro.Candidate_signature = x.Candidate_signature;
pro.Gender = x.Gender;
pro.Gender = x.Gender;
pro.DOB = x.DOB;
pro.course = x.course;
pro.appearing_class = x.appearing_class;
pro.highschool = x.highschool;
pro.Passing_Year_10 = x.Passing_Year_10;
pro.Intermediate = x.Intermediate;
pro.Passing_Year_12 = x.Passing_Year_12;
pro.Graduation = x.Graduation;
pro.Contact_No1 = x.Contact_No1;
pro.Contact_No2 = x.Contact_No2;
pro.Email_Id = x.Email_Id;
pro.Residence = x.Residence;
pro.Exam_center_code = x.Exam_center_code;
pro.Category = x.Category;
pro.Occupation_father = x.Occupation_father;
pro.Income = x.Income;
pro.City = x.City;
pro.State = x.State;
pro.Mail_Id1 = x.Mail_Id1;
pro.Mail_Id2 = x.Mail_Id2;
ViewBag.id = x.Candidate_Id;
return View(pro);
}
[HttpPost]
[ValidateInput(false)]
public ActionResult EditData(Application pro)
{
if (ModelState.IsValid)
{
context.Entry(pro).State = EntityState.Modified;
context.SaveChanges();
return RedirectToAction("Index", "Home");
}
return View(pro);
}

[HttpGet]
public ActionResult DeleteData(int Candidate_Id)
{
return View();
}
Ramesh Palanivel9y ago
Hi Indu,

In your Ajax Posting , you are only posting the Id value, behind the reason your Model is Empty,It will only post the Id value to your second parameter. Your model will not bind here. For that, you can use form.serialize method.. Try my code, I have posted here

function SelectedIndexChanged() {
$("#AppearingClass").empty();
$.ajax({
type: 'POST',
url: '@Url.Action("GetClass")',
dataType: 'json',
data: { Candidate_Id: $("#course").val() },
success: function (data) {
$("#AppearingClass").append('');
for (var i = 0; i < data.length; i++)
{ var opt = new Option(data[i].Text, data[i].Value); $('#AppearingClass').append(opt); }
$("#div10").hide();
$("#drop10").hide();
},
error: function (ex) {
alert('Failed to retrieve states.' + ex);
}
});
}
Tryt the below code,
function SelectedIndexChanged() {
$("#AppearingClass").empty();
$.ajax({
type: 'POST',
url: '@Url.Action("GetClass")',
dataType: 'json',
data: $('#EditData').Serialize(),
success: function (data) {
$("#AppearingClass").append('<option value="0">Selectoption>');
for (var i = 0; i < data.length; i++)
{ var opt = new Option(data[i].Text, data[i].Value); $('#AppearingClass').append(opt); }
$("#div10").hide();
$("#drop10").hide();
},
error: function (ex) {
alert('Failed to retrieve states.' + ex);
}
});
}
Indu Yadav9y ago
@model Application_Form.Models.Application

Admin Panel -- COMED-I

@section Scripts {
@Scripts.Render("~/bundles/jqueryui")
@Styles.Render("~/Content/cssjqryUi")

}
Change Password |

Logout

Application

Entry

View

ALL

ONLINE

OFFLINE

Center Allotment

Result

@using (@Html.BeginForm("EditData", "Home", FormMethod.Post))

{

@Html.AntiForgeryToken();

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

Application Entry

Condidate's Name

@Html.TextBoxFor(model => model.Name, new { @required = "required" })

Note 1: [as per 10th certificate]

Note 2: [Please do not use any prefix such as Mr. or Ms. etc.]

Father's Name

@Html.TextBoxFor(model => model.Father_Name, new { @required = "required" })

Recent Color Photograph

@Html.TextBoxFor(model => model.Photograph, new { @type = "file", @id = "photograph", @onchange = "showimagepreview(this)", @class = "form-control" })

@if ((Model.Photograph) != null)

{

}

Condidate's Signature

@Html.TextBoxFor(model => model.Candidate_signature, new { @type = "file", @id = "candi_sign", @onchange = "showimagepreviews(this)", @class = "form-control" })

@if ((Model.Candidate_signature) != null)

{

}

Gender

@Html.DropDownListFor(model => model.Gender,

new List

{

new SelectListItem{Value="Male",Text="Male"},

new SelectListItem{Value="Female",Text="Female"},

}, new { @class = "span6" })

Date Of Birth

@Html.TextBoxFor(model => model.DOB, new { @id = "datepicker", @type = "date" })

Note 1: [Date of Birth as recorded in the Matriculation/Secondary Certificate]

Select Course

@Html.DropDownListFor(model => model.course,

new List

{

new SelectListItem{Value="0",Text="Select"},

new SelectListItem{Value="1",Text="MBA"},

new SelectListItem{Value="2",Text="B.TECH"},

new SelectListItem{Value="3",Text="POLYTECHNIC"}

}, new { @class = "span6", @onchange = "SelectedIndexChanged()" })

@*@Html.DropDownList("AddData", ViewData["course"] as List)*@

IF You Are Appearing Condidate

@Html.DropDownListFor(model => model.appearing_class,

new List

{

new SelectListItem{Value="0",Text="select"},

}, new { @class = "span6", @id = "AppearingClass", @name = "AppearingClass" })

@**@

Educational Qualification

A. % of Class 10th

@Html.TextBoxFor(model => model.highschool, new { @class = "span6", @id = "10textbox", @name = "highschooltextbox", }) %

Passing Year of Class 10th

@Html.DropDownListFor(model => model.Passing_Year_10,

new List

{

new SelectListItem{Value="2010",Text="2010"},

new SelectListItem{Value="2011",Text="2011"},

}, new { @class = "span6", @id = "dropdown10", @name = "highschooldropdown" })

B. % of Class 12th

@Html.TextBoxFor(model => model.Intermediate, new { @id = "12textbox", @name = "intermediatetextbox" }) %

Passing Year of Class 12th

@Html.DropDownListFor(model => model.Passing_Year_12,

new List

{

new SelectListItem{Value="2010",Text="2010"},

new SelectListItem{Value="2012",Text="2012"},

}, new { @class = "span6", @id = "12dropdown", @name = "intermediatedropdown" })

C. % of Graduation

@Html.TextBoxFor(model => model.Graduation, new { @id = "grad", @name = "gradtextbox" })

Passing Year of Graduation

@Html.DropDownListFor(model => model.Passing_Year_Grad,

new List

{

new SelectListItem{Value="2010",Text="2010"},

new SelectListItem{Value="2011",Text="2011"},

}, new { @class = "span6", @id = "graddropdown", @name = "graduationdropdown" })

Condidate's Contact No 1.

@Html.TextBoxFor(model => model.Contact_No1)

Condidate's Contact No 2.

@Html.TextBoxFor(model => model.Contact_No2)

Condidate's Email-ID

@Html.TextBoxFor(model => model.Email_Id)

Place Of Residence

@Html.DropDownListFor(model => model.Residence,

new List

{

new SelectListItem{Value="Village",Text="Village"},

new SelectListItem{Value="Town",Text="Town"},

})

Choice Of Exam Centre code

1. Choice @Html.TextBoxFor(model => model.Exam_center_code)

Declaration

I hereby declare that all the particulars stated in the application form are true to the best of my knowledge and belief. I have read the MSJEE Information Brochure and I shall abide by the terms & condition their in.

I agree with all condition.

Cancel

}

Ramesh Palanivel9y ago

Hi Indu,

Kindly share your HTML page also. How you are trying to post the model to controller..

Indu Yadav9y ago

Hello Sir

Please check my code........

[HttpGet]

public ActionResult EditData(int Candidate_Id)

{

var image = context.Applications.Find(Candidate_Id);

if (image == null)

{

return new HttpNotFoundResult();

}

var model = new Application

{

Name = image.Name,

Father_Name=image.Father_Name,

Photograph=image.Photograph,

Candidate_signature=image.Candidate_signature,

Gender=image.Gender,

DOB=image.DOB,

course=image.course,

appearing_class=image.appearing_class,

Contact_No1=image.Contact_No1,

Contact_No2=image.Contact_No2,

Email_Id=image.Email_Id,

Residence=image.Residence,

Exam_center_code=image.Exam_center_code,

Category=image.Category,

Occupation_father=image.Occupation_father,

Income=image.Income,

City=image.City,

State=image.State,

Mail_Id1=image.Mail_Id1,

Mail_Id2=image.Mail_Id2,

};

return View(model);

}

[HttpPost]

[ValidateInput(false)]

public ActionResult EditData(Application model, int Candidate_Id)

{

if (ModelState.IsValid)

{

var image= context.Applications.Find(Candidate_Id);

if (image == null)

{

return new HttpNotFoundResult();

}

image.Name=model.Name;

image.Father_Name=model.Father_Name;

image.Photograph=model.Photograph;

image.Candidate_signature=model.Candidate_signature;

image.Gender=model.Gender;

image.DOB=model.DOB;

image.course=model.course;

image.appearing_class=model.appearing_class;

image.Contact_No1=model.Contact_No1;

image.Contact_No2=model.Contact_No2;

image.Email_Id=model.Email_Id;

image.Residence=model.Residence;

image.Exam_center_code=model.Exam_center_code;

image.Category=model.Category;

image.Occupation_father=model.Occupation_father;

image.Income=model.Income;

image.City=model.City;

image.State=model.State;

image.Mail_Id1=image.Mail_Id1;

image.Mail_Id2=image.Mail_Id2;

if (model.Photograph != null)

{

var imagePath = Path.GetFileName(image.Photograph);

var imageUrl = System.IO.Path.Combine(Server.MapPath("~/PICS/"), imagePath);

image.Photograph = imageUrl;

}

context.SaveChanges();

return RedirectToAction("Index");

}

return View(model);

}

Vivek Kumar9y ago

Hi,

You have to check the action parameter. Check the below links.

https://docs.microsoft.com/en-us/aspnet/web-api/overview/formats-and-model-binding/parameter-binding-in-aspnet-web-api