Update Image in MVC

I have table named "Contacts" in this table I want to update PhotoID Filed so as new file will uploaded and path will replace in database against record. I done following Code for Controller and Edit View but I Get erro

Object reference not set to an instance of an object.

[HttpGet]
public ActionResult EditContactProfile(int id)
{
if (id == 0)
{
return new HttpStatusCodeResult(HttpStatusCode.BadRequest);
}
Contact contact = db.Contacts.Find(id);
if (contact == null)
{
return HttpNotFound();
}
return View(contact);
}
[HttpPost]
public ActionResult EditContactProfile(Contact contact, HttpPostedFileBase ImageFile)
{
if (ModelState.IsValid)
{
if (ImageFile.ContentLength>0)
{
string fileName = Path.GetFileNameWithoutExtension(ImageFile.FileName);
string extension = Path.GetExtension(ImageFile.FileName);
fileName = fileName + DateTime.Now.ToString("yymmssfff") + extension;
contact.PhotoID = "~/Uploads/UploadImages/" + fileName;
fileName = Path.Combine(Server.MapPath("~/Uploads/UploadImages/"), fileName);
ImageFile.SaveAs(fileName);
}
db.Entry(contact).State = EntityState.Modified;
db.SaveChanges();
return RedirectToAction("IndexContacts");
}
return View(contact);
}

And View is

@model EasyES.Models.Contact
@{
ViewBag.Title = "EditContact";
}
<head>
<link href="~/Content/bootstrap.min.css" rel="stylesheet" />
<script src="~/Scripts/jquery-3.3.1.min.js">script>
<script src="~/Scripts/bootstrap.min.js">script>
<script src="~/Scripts/jquery-ui-1.12.1.js">script>
<style>
input,
select,
textarea {
max-width: 100%; /*280px; Dafult Size*/
}
style>
head>
<body>
<div class="EasyViewDiv">
<div class="form-group">
<div class="row">
<div class="col-md-6">
<h1 style="color:#808080">Edit Contact Profile Photoh1>
div>
<div class="col-md-6">
div>
div>
div>
@using (Html.BeginForm())
{
@Html.AntiForgeryToken()
@Html.HiddenFor(a => a.ContactID)
@Html.HiddenFor(a => a.Name)
@Html.HiddenFor(a => a.NickName)
@Html.HiddenFor(a => a.ComapnyName)
@Html.HiddenFor(a => a.Department)
@Html.HiddenFor(a => a.Designation)
@Html.HiddenFor(a => a.Email1)
@Html.HiddenFor(a => a.Email2)
@Html.HiddenFor(a => a.Contact1)
@Html.HiddenFor(a => a.Contact2)
@Html.HiddenFor(a => a.Contact3)
@Html.HiddenFor(a => a.AddressHome)
@Html.HiddenFor(a => a.AddressWorks)
@Html.HiddenFor(a => a.WebAddress)
@Html.HiddenFor(a => a.KeyWord)
@Html.HiddenFor(a => a.Status)
<div class="row">
<div class="col-md-6">
<div class="form-group">
@Html.ValidationSummary(true, "", new { @class = "text-danger" })
<div class="form-group">
@Html.LabelFor(model => model.Name, "Contact Name", htmlAttributes: new { @class = "control-label col-md-12" })
<div class="form-group col-md-12">
@Html.EditorFor(model => model.Name, new { htmlAttributes = new { @class = "form-control" } })
@Html.ValidationMessageFor(model => model.Name, "", new { @class = "text-danger" })
div>
div>
div>
div>
<div class="col-md-6">
<div class="form-group">
@Html.ValidationSummary(true, "", new { @class = "text-danger" })
<div class="form-group">
@Html.LabelFor(model => model.PhotoID, "UPload Photo", htmlAttributes: new { @class = "control-label col-md-12" })
<div class="form-group col-md-12">
<div class="form-group col-md-9">
<input type="file" id="FileStorage" name="ImageFile" />
<p class="text-danger">Only PNG file with 500 kb p>
div>
div>
div>
div>
div>
div>
<div align="center" class="container">
<button type="submit" value="save" class="btn-outline-success ESbutton button3"><span class="fa fa-save">span>button>
<button title="List View" class="btn-outline-info ESbutton button3" onclick="location.href='@Url.Action("IndexContacts", "Contacts")';return false;">
<span class="fa fa-list">span>
button>
div>
}
div>
body>

CREATE TABLE [dbo].[Contact] (
[ContactID] INT IDENTITY (1, 1) NOT NULL,
[ContactType] NVARCHAR (20) NOT NULL,
[Name] NVARCHAR (100) NOT NULL,
[NickName] NCHAR (20) NULL,
[ComapnyName] NVARCHAR (100) NULL,
[Email1] NVARCHAR (100) NULL,
[Email2] NVARCHAR (100) NULL,
[WebAddress] NVARCHAR (100) NULL,
[Contact1] NVARCHAR (15) NULL,
[Contact2] NVARCHAR (15) NULL,
[Contact3] NVARCHAR (15) NULL,
[AddressHome] NVARCHAR (500) NULL,
[AddressWorks] NVARCHAR (500) NULL,
[Designation] NVARCHAR (50) NULL,
[Department] NVARCHAR (50) NULL,
[KeyWord] NVARCHAR (100) NULL,
[PhotoID] NVARCHAR (200) NULL,
[Status] NVARCHAR (10) NULL,
CONSTRAINT [PK_Contact] PRIMARY KEY CLUSTERED ([ContactID] ASC)
);

5 Replies

Know the answer? Post it — somebody with the same question will find it here.

Ramachandran M6y ago
Hi,

Try this

db.Entry(entity).State=EntityState.Detached;
     db.SaveChanges();
db.Entry(contact).State = EntityState.Modified;
        db.SaveChanges();
0
Raju Fodse6y ago
1. CREATE TABLE [dbo].[Contact] (
2. [ContactID] INT IDENTITY (1, 1) NOT NULL,
3. [ContactType] NVARCHAR (20) NOT NULL,
4. [Name] NVARCHAR (100) NOT NULL,
5. [NickName] NCHAR (20) NULL,
6. [ComapnyName] NVARCHAR (100) NULL,
7. [Email1] NVARCHAR (100) NULL,
8. [Email2] NVARCHAR (100) NULL,
9. [WebAddress] NVARCHAR (100) NULL,
10. [Contact1] NVARCHAR (15) NULL,
11. [Contact2] NVARCHAR (15) NULL,
12. [Contact3] NVARCHAR (15) NULL,
13. [AddressHome] NVARCHAR (500) NULL,
14. [AddressWorks] NVARCHAR (500) NULL,
15. [Designation] NVARCHAR (50) NULL,
16. [Department] NVARCHAR (50) NULL,
17. [KeyWord] NVARCHAR (100) NULL,
18. [PhotoID] NVARCHAR (200) NULL,
19. [Status] NVARCHAR (10) NULL,
20. CONSTRAINT [PK_Contact] PRIMARY KEY CLUSTERED ([ContactID] ASC)
21. );
Hi Ramachandranji
This is my Contact Table Script
0