我有一个服务对象 Update
public bool Update(object original, object modified)
{
var originalClient = (Client)original;
var modifiedClient = (Client)modified;
_context.Clients.Update(originalClient); //<-- throws the error
_context.SaveChanges();
//Variance checking and logging of changes between the modified and original
}
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这是我从以下方法调用此方法的地方:
public IActionResult Update(DetailViewModel vm)
{
var originalClient = (Client)_service.GetAsNoTracking(vm.ClientId);
var modifiedClient = (Client)_service.Fetch(vm.ClientId.ToString());
// Changing the modifiedClient here
_service.Update(originalClient, modifiedClient);
}
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这是GetAsNotTracking方法:
public Client GetAsNoTracking(long id)
{
return GetClientQueryableObject(id).AsNoTracking().FirstOrDefault();
}
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Fetch 方法:
public object Fetch(string id)
{
long fetchId;
long.TryParse(id, out fetchId); …Run Code Online (Sandbox Code Playgroud) 我有两个数组,$user_roles和$global_roles.我想创建一个新的数组,让我们称之为它$available_roles,它可以等同于项中$global_roles的项目$user_roles
我有以下代码来执行普通数组. $available_roles = array_unique(array_merge($global_roles, $user_roles), SORT_REGULAR);
这被证明是有问题的,因为Laravel在执行查询时不使用传统数组,它使用Eloquent Collections.
你们还有什么其他想法?
这是我提供问题的代码.
package ca.rhinoza.game;
import java.awt.BorderLayout;
import java.awt.Canvas;
import java.awt.Dimension;
import javax.swing.JFrame;
public boolean running = false;
public class Game extends Canvas implements Runnable {
private static final long serialVersionUID = 1L;
public static final int WIDTH = 160;
public static final int HEIGHT = WIDTH / 12 * 9;
public static final int SCALE = 3;
public static final String NAME = "Game";
private JFrame frame;
public Game(){
setMinimumSize(new Dimension(WIDTH*SCALE, HEIGHT*SCALE));
setMaximumSize(new Dimension(WIDTH*SCALE, HEIGHT*SCALE));
setPreferredSize(new Dimension(WIDTH*SCALE, HEIGHT*SCALE));
frame = new …Run Code Online (Sandbox Code Playgroud) 是否可以删除这些区域?(标有黑色)

这是我目前的CSS:
table.report {
border-collapse:collapse;
}
table.report td, table.report th {
border:1px solid rgb(150, 150, 150);
padding:5px;
}
tr.title {
border-left: 0px solid;
border-right: 0px solid;
}
td.normal {
min-width: 200px;
}
td.extended {
min-width: 400px;
}
p.center {
padding-top: 5px;
text-align: center;
}
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HTML:
<table class="report">
<tr class="title">
<td colspan="4"><p class="center">Solution 1</p></td>
</tr>
<tr>
<td class="normal">Assured Load</td>
<td class="normal">{PHP Returns}</td>
<td class="extended" colspan="2">{PHP Returns}</td>
</tr>
</table>
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我希望用户在他/她能够查看表单之前登录...
它似乎不起作用.
有任何想法吗?
sLoginID := InputBox('Ink Spots','Please enter login ID:','');
sLoginPassword := InputBox('Ink Spots','Please enter password for ' + sLoginID,'');
if sLoginID <> 'user'
then
begin
ShowMessage('You shall not pass!');
Self.Close;
end
else
begin
sLoginPassword := InputBox('Ink Spots','Please enter password for ' + sLoginID,'');
if sLoginPassword <> 'pass'
then
begin
ShowMessage('You shall not pass!');
Self.Close;
end;
end
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;
我有一个导航抽屉。我想定义列表中的项目。似乎有一个轻微的错误,对于我的生活,我无法接受。
这是我的代码。(如果是这么小的东西,请原谅我..)
主活动(onCreate)
String[] drawerListViewItems = getResources().getStringArray(R.array.items);
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res/values/strings.xml
<?xml version="1.0" encoding="utf-8"?>
<resources>
<string-array name="items">
<item>Item 1</item>
<item>Item 2</item>
<item>Item 3</item>
<item>Item 4</item>
<item>Item 5</item>
<item>Item 6</item>
</string-array>
<string name="drawer_open">Open Navigation Drawer</string>
<string name="drawer_closed">Close Navigation Drawer</string>
</resources>
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