当我创建Scaffold并添加Model类时,我收到这些错误"运行所选生成器时出错.尝试重建项目"
我有三个Model类:
1.Department.CS
2.Designation.cs
3.CompanyDBContext.cs
数据库:我在数据库中有两个表,1.部门(deptID,deptName,描述)2.指定(desgtID,desgName,description)
目标: - 我想为这些场景创建一个视图页面.像这样
插入表格名称(TextBox)+部门名称(下拉列表框)+名称名称(下拉列表框)
1.Department.CS
namespace mvcAppraisalSystem.Models
{
public class Department
{
[Key]
public int deptID { get; set; }
public string deptName { get; set; }
public string Description { get; set; }
}
}
2.Designation.cs
namespace mvcAppraisalSystem.Models
{
public class Designation
{
[Key]
public int desgID { get; set; }
public string desgName { get; set; }
public string description { get; set; }
}
}
3.CompanyDBContext.cs
namespace mvcAppraisalSystem.Models
{
public …当我为Controller创建Scaffold并添加Model类时,我收到这些错误" 不支持每种类型的多个对象集 ".
我有三个Model类:
1.Department.CS
2.Designation.cs
3.CompanyDBContext.cs
数据库:我在数据库中有两个表,1.部门(deptID,deptName,描述)2.指定(desgtID,desgName,description)
目标: - 我想为这些场景创建一个视图页面.像这样
插入表格名称(TextBox)+部门名称(下拉列表框)+名称名称(下拉列表框)
1.Department.CS
namespace mvcAppraisalSystem.Models
{
public class Department
{
[Key]
public int deptID { get; set; }
public string deptName { get; set; }
public string Description { get; set; }
}
}
2.Designation.cs
namespace mvcAppraisalSystem.Models
{
public class Designation
{
[Key]
public int desgID { get; set; }
public string desgName { get; set; }
public string description { get; set; }
}
}
3.CompanyDBContext.cs
namespace mvcAppraisalSystem.Models
{ …我正在尝试为部门名称制作下拉列表.我正在使用MVC5.我在堆栈溢出上看到了太多的解决方案,但我从未找到与MVC5相关的有价值的解决方案.
Database Name : AppraisalDBContext
Table Name : Department
Column Name : deptID (Primarykey)
deptName (department name)
Description
我收到此错误:
An exception of type 'System.InvalidOperationException' occurred in EntityFramework.dll but was not handled in user code
Additional information: The model backing the 'AppraisalDBContext' context has changed since the database was created.Consider using Code First Migrations to update the database (http://go.microsoft.com/fwlink/?
码:
控制器类名称(DepartmentController.cs):
public ActionResult Index(string depName)
{
var DeptLst = new List<string>();
var GenreQry = from d in db.Department
orderby d.deptName
select …当我从控制器访问我的模型数据时.我收到此错误EntitySet'Department'基于类型'Admin',没有定义键.我正在使用MVC5与visual stdio 2013 RC.
deptID(主键),deptName,描述:all是Department表的列名.
desgID(主键),desgName,description:all是Designation表的列名.
目标: - 我想在视图页面上创建一个deptName或desgName对话框,但现在我想解决这些问题.
我指的是这些链接: - EntityType'Category'没有定义键.定义此EntityType的键
但根据这些联系.我试图在我的主键列中使用[Key],但在mvc5中没有提示.
型号:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Data.Entity;
namespace mvcAppraisalSystem.Models
{
public class Admin
{
public int deptID { get; set; }
public string deptName { get; set; }
public string Description { get; set; }
public int desgID { get; set; }
public string desgName { get; set; }
public string description { get; set; }
} …有谁知道如何在c#中创建gmail帐户(以编程方式).我推荐此链接https://developers.google.com/admin-sdk/directory/v1/guides/manage-users.
我想在gridview列中只显示2位小数.列名是InsuaranceAmount,TotalAmount和TravelAssistAmoun.
for (int i = 0; i < bookingDetailsEmailRS.Length - 1; i++)
{
BookingDetailsEmailRS[] bookingDetailsEmailRS = b.GetBookingDetails(soap, emailid, out errorCode, out errorAtNode);
GridView1.DataSource = bookingDetailsEmailRS.Select(obj => new
{
TravelerName = obj.Travelers[0].FirstName + obj.Travelers[0].MiddleName + obj.Travelers[0].LastName,
obj.BookingNumber,
obj.BookingStatus,
obj.ContactNumber,
obj.CouponDiscountAmount,
obj.DepartureDate,
obj.FromCity,
obj.ToCity,
obj.PaidAmount,
obj.TicketType,
obj.InsuaranceAmount,
obj.TotalAmount,
obj.TravelAssistAmount
}).ToList();
GridView1.DataBind();
}
在这个变量bookingDetailsEmailRS中,我收到了回复.
我将值插入数据库时出现此错误.我已经在SQL Sever Management Studio中将身份规范属性设置为ON,但我仍然遇到此错误.我也试过这种方式SET IDENTITY_INSERT Student ON,在我的SQL命令中添加这一行,但它没有运行.
Default.aspx.cs:
protected void btnsubmit_Click1(object sender, EventArgs e)
{
SqlConnection con = new SqlConnection(@"Data Source=INAFFFP1IT004W\MYSQL;Initial Catalog=test;User ID=sa;Password=test@1234;");
con.Open();
string SId = tbid.Text;
string FirstName = tbfirstname.Text;
string LastName = tblastname.Text;
string StartDate = tbstart.Text;
string EndDate = tbend.Text;
using (SqlCommand cmd = con.CreateCommand())
{
cmd.CommandText = "insert into Student(SId,FirstName,LastName,StartDate,EndDate) values('" + SId + "','" + FirstName + "','" + LastName + "','" + StartDate + "','" + EndDate + "')";
cmd.Parameters.AddWithValue("@SId", …我想使用谷歌API来创建Gmail用户帐户.我正在向服务器发送JSON请求以获取授权代码,但我在httpwebresponse中收到了这些错误: -
异常详细信息:System.Net.WebException:远程服务器返回错误:(400)错误请求
var request = (HttpWebRequest)WebRequest.Create(@"https://accounts.google.com/o/oauth2/auth");
request.Method = "POST";
request.ContentType = "text/json";
request.KeepAlive = false;
//request.ContentLength = 0;
using (StreamWriter streamWriter = new StreamWriter(request.GetRequestStream()))
{
string json = "{\"scope\":\"https%3A%2F%2Fwww.googleapis.com%2Fauth%2Fuserinfo.email+https%3A%2F%2Fwww.googleapis.com%2Fauth%2Fuserinfo.profile\"," + "\"state\":\"%2Fprofile\"," + "\"redirect_uri\":\"http://gmailcheck.com/response.aspx\"," + "\"response_type\":\"code\"," + "\"client_id\":\"841994137170.apps.googleusercontent.com\"}";
streamWriter.Write(json);
// streamWriter.Flush();
//streamWriter.Close();
}
using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())
{
StreamReader responsereader = new StreamReader(response.GetResponseStream());
var responsedata = responsereader.ReadToEnd();
//Session["responseinfo"] = responsereader;
//testdiv.InnerHtml = responsedata;
}
}