我正在尝试在实体框架中使用此函数插入数据但没有 MVC
protected void SaveBranch_Click(object sender, EventArgs e)
{
if (DropDownBranchSchool.Text == string.Empty)
{
}
else
{
branch newBranch = new branch(txtBoxBranchName.Text, txtBoxBranchLocation.Text, txtBoxBranchPhone.Text, txtBoxBranchEmail.Text, Int32.Parse(DropDownBranchSchool.Text));
_SchoolDBEntity.branches.Add(newBranch);
_SchoolDBEntity.SaveChanges();
Response.Redirect("Default.aspx");
}
}
有关此异常的其他信息是：
“概念端类型“DatabaseDBModel.student”中成员“SchoolId”的类型“Edm.String”与对象端类型“SchoolManagementSystemOOP.Models”中成员“SchoolId”的类型“System.Int32”不匹配。学生'。”
我的分支类代码如下：
public partial class branch
{
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA2214:DoNotCallOverridableMethodsInConstructors")]
public branch(string name, string location, string phone, string email, int schoolId)
{
this.students = new HashSet<student>();
BName = name;
BLocation = location;
BPhone = phone;
BEmailID = email;
SchoolId = schoolId;
}
public int BId { get; set; }
public string BName { get; set; }
public string BLocation { get; set; }
public string BPhone { get; set; }
public string BEmailID { get; set; }
public int SchoolId { get; set; }
public virtual school school { get; set; }
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA2227:CollectionPropertiesShouldBeReadOnly")]
public virtual ICollection<student> students { get; set; }
}
}
学生班级代码：
public partial class student
{
public int Id { get; set; }
public string FName { get; set; }
public string LName { get; set; }
public string Phone { get; set; }
public string EmailId { get; set; }
public string SchoolId { get; set; }
public string BranchId { get; set; }
public virtual branch branch { get; set; }
public student(string fname, string lname, string phone, string email, string schoolId, string branchId )
{
FName = fname;
LName = lname;
Phone = phone;
EmailId = email;
SchoolId = schoolId;
BranchId = branchId;
}
}
我想要一些有关导致异常的原因的见解和线索，我还尝试将学校的 int 类型更改为 string 的类型。