The parameters dictionary contains a null entry for parameter 'id'

m getting the below error when I delete a record from the table in mvc

The parameters dictionary contains a null entry for parameter 'id' of non-nullable type 'System.Int32' for method 'System.Web.Mvc.ActionResult DeleteUserDetails(Int32, nsroute.DataAccess.UserModel)' in 'nnnnn.Controllers.AccountController'. An optional parameter must be a reference type, a nullable type, or be declared as an optional parameter.

Parameter name: parameters

This is a method for delete

public static int DeleteUserDetails( int id )
{
int rowAffected = 0;
using (IDbConnection con = new SqlConnection(ConnectionString))
{
if (con.State == ConnectionState.Closed)
con.Open();
DynamicParameters parameters = new DynamicParameters();
parameters.Add("@Id", id);
rowAffected = con.Execute("DeleteGroupMeeting", parameters, commandType: CommandType.StoredProcedure);
}
return rowAffected;
}

This is the controller part

public ActionResult DeleteUserDetails( int id,UserModel usermodel)
{
if(UserModel.DeleteUserDetails(id)>0)
{
return RedirectToAction("Dashboard", "Home");
}
return RedirectToAction("Dashboard", "Home");
}

this is code for button

"@Url.Action("DeleteUserDetails","Account", new {item.UserId})">Delete

1 Reply

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

Sachin Singh5y ago
Accepted answer
Please check your id is not null,also in your action method mark parameter with ? symbol to make it nullable type, if it can be null. public ActionResult(int? Id, className obj) {}