The model item passed into the ViewDataDictionary is of type 'EntityCrudIdentity.ViewModels.MemberViewModel', but this ViewDataDictionary instance requires a model item of type 'EntityCrudIdentity.ViewModels.EditMemberViewModel'.

Question

Controller-->
[HttpGet]
public async Task<IActionResult> User1(string Username)
{
var std = await student.GetStudentUserName(Username);
MemberViewModel member = new MemberViewModel()
{

                        UserName = std.UserName,  
                        Email = std.Email,  
                        PhoneNo = std.PhoneNo  
                    };  
          
          
            member.ProtectedId = protector.Protect(member.UserName.ToString());  
          


        return View(member);  
    }  
     [HttpGet]  
    public async Task<IActionResult> Edit(string EId)  
    {  
        var idint = protector.Unprotect(EId);  
        var std = await student.GetStudentUserName(idint);  
        std.ProtectedId = EId;  
        return View(std);  
    }  

Interface-->

public async Task <MemberViewModel> GetStudentUserName(string em)
{
IdentityUser user = await userManager.FindByNameAsync(em);
MemberViewModel member = new MemberViewModel()
{

            UserName = user.UserName,  
            Email = user.Email,  
            PhoneNo = user.PhoneNumber  
               
        };  
        return member;  

    }  

View-->User

@using EntityCrudIdentity.ViewModels

@默 MemberViewModel

@{
ViewData["Title"] = "List";
}

<h1>List</h1>
<table class="table table-bordered ">
<thead class=table-dark>
<tr class="text-center">
<th>UserName</th>
<th>PhoneNo</th>
<th>Email</th>

            <th>Edit</th>  
            <th>Delete</th>  
        </tr>  
    </thead>  
    <tbody>  
        <tr class ="text-center">    
            <td>@Model.UserName</td>  
              
            <td>@Model.PhoneNo</td>  
            
            <td>@Model.Email</td>  
             
            <td>  
               <a class="btn btn-primary" title= "Edit"  asp-controller="Login" asp-action="Edit" asp-route-EId="@Model.ProtectedId">Edit<i class="fa-solid fa-pen-to-square"></i></a>   
            </td>  
            @*<td>  
                 <form method="post">  
                    <button class="btn  btn-danger" title="Delete" type="submit" onclick="return confirm('Are you sure want to delete')"   asp-controller="Student" asp-action="Delete" asp-route-DId=@item.PtotectedId>Delete<i class="fa-solid fa-trash"></i></button>    
                </form>  
            </td>*@  
        </tr>  
          
       
    </tbody>     
</table>  

View--> Edit

@using EntityCrudIdentity.ViewModels

@默 EditMemberViewModel
<h1>Edit</h1>
<form method="post">
<input @默 .UserName />
<input @默 .Email />
<input @默 .PhoneNo />
<input hidden @默 .ProtectedId />
<button type="submit" >Submit</button>
<a asp-controller="Home" asp-action="List">Back</a>
</form>

Answer 1

The error is very clear. You defined the View's model as EditMemberViewModel but passed the type MemberViewModel. Either fix the action to pass EditMemberViewModel to the view or change the View's model definition to MemberViewModel.

Or perhaps you need to rethink the design?