Question

我有一个搜索功能，可以查找客户名称，邮政编码，电话号码。我还希望该函数能够查找连接表CustomerContact以搜索FirstName和Surname。

我有以下内容：

var customer = from c in db.Customer.Include(c => c.CustomerContact)
                select c;


if (!String.IsNullOrEmpty(searchString))
{
    customer = customer.Where(c => c.CustomerName.ToUpper().Contains(searchString.ToUpper())
                        || c.Postcode.ToUpper().Contains(searchString.ToUpper())
                        || c.CustomerContact.FirstName.ToUpper().Contains(searchString.ToUpper())
                        || c.CustomerContact.Surname.ToUpper().Contains(searchString.ToUpper())
                        || c.Telephone.ToUpper().Contains(searchString.ToUpper()));
}

我没有收到任何错误。当我搜索FirstName和Surname时，它不会返回任何结果。

Answer 1

customer = customer.Include（“CustomerContact”）。Where（...

Answer 2

在处理其他事情时遇到了这个答案。

这是我的最终代码。希望它对某人有用。

var customer = from c in db.Customer
               select c;

if (!String.IsNullOrEmpty(searchString))
{
    customer = customer.Where(c => SqlFunctions.StringConvert((double)c.CustomerID).Trim().Equals(searchString)
                        || c.CustomerName.ToUpper().Contains(searchString.ToUpper())
                        || c.Postcode.ToUpper().Replace(" ", "").Equals(searchString.ToUpper().Replace(" ", ""))
                        || c.Telephone.ToUpper().Replace(" ", "").Equals(searchString.ToUpper().Replace(" ", ""))
                        || c.CustomerContact.Where(x => x.FirstName.ToUpper().Contains(searchString.ToUpper())).Any()
                        || c.CustomerContact.Where(x => x.Surname.ToUpper().Contains(searchString.ToUpper())).Any()
                        || c.CustomerContact.Where(x => (x.FirstName.ToUpper() + " " + x.Surname.ToUpper()).Contains(searchString.ToUpper())).Any());
        }

.net MVC搜索查询连接表

2 个答案: