Linq获取错误：属性或索引器'AnonymousType＃1.Password'无法分配 - 它是只读的 [英] Linq Getting error : Property or indexer 'AnonymousType#1.Password' cannot be assigned to -- it is read only

问题描述

我已经写了这些代码以便在首次登录时更改我的密码，但是此代码收到错误，这里是我的代码

i have write these code for change my password on first login but this code is getting error here is my code

using (extractDataContext context = new extractDataContext())
{
var Query = (from t in context.userDetails where txtUserID.Text == t.UserID && SimpleHash.Encrypt_QueryString(txtPassword.Text ) == t.Password select new { t.Password }).Single();

if (Query!=null)
{
Query .Password = SimpleHash.Encrypt_QueryString(txtPassword.Text);  --> Error Shows in bolted text
context.SubmitChanges();
}

}

推荐答案

请将Single更改为FirstOrDefault或First.Single返回标量因此，你不能像财产一样使用它

Please Change Single to FirstOrDefault or First.Single returns a scalar value.So you can't use it like property

var Query = (from t in context.userDetails where txtUserID.Text == t.UserID && SimpleHash.Encrypt_QueryString(txtPassword.Text ) == t.Password select new { t.Password }).FirstOrDefault();

希望这有助于

Hope this helps

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