有更少的代码行,有没有更好的方法来做到这一点?有时FirstName
或者SecondName
或者ThirdName
值可能null
- 这段代码有效,但我想提高质量.
if (FirstName != null)
{
txtEngageeName.Text = FirstName.ToString() ;
}
if (FirstName != null && SecondName != null)
{
txtEngageeName.Text = FirstName.ToString() + SecondName.ToString();
}
if (FirstName != null && SecondName != null && ThirdName != null)
{
txtEngageeName.Text = FirstName.ToString() + SecondName.ToString() + ThirdName.ToString();
}
Run Code Online (Sandbox Code Playgroud) 我似乎无法让我的删除请求工作.我已经完成了所有的get请求,但现在我仍然坚持删除,似乎无法绕过它.
console.log'd URL始终正确,删除请求通过Postman正常工作.
有什么想法吗?
HTML
<button class="button button3" (click)="delTicket()"><span class="fa fa-trash"></span></button>
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TS
delTicket(){
this.id = this.route.snapshot.params.id;
this.ticketService.deleteTicket(this.id);
}
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服务
deleteTicket(id): Observable<Ticket[]>{
console.log(this.apiUrl + id);
return this.http.delete<Ticket[]>(this.apiUrl + id);
}
Run Code Online (Sandbox Code Playgroud) 我有一个类型的字典,
Dictionary<string, string> newdictionary = new Dictionary<string, string>();
newdictionary.Add("12345", "chip1");
newdictionary.Add("23456", "chip2");
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现在我有一个类型的列表
internal class CustomSerial
{
public string SerialNo { get; set; }
public decimal ecoID { get; set; }
}
var customList = new List<CustomSerial>();
CustomSerial custObj1= new CustomSerial();
custObj1.ecoID =1;
custObj1.SerialNo = "12345";
customList.Add(custObj1);
CustomSerial custObj2 = new CustomSerial();
custObj2.ecoID = 2;
custObj2.SerialNo = "23456";
customList.Add(custObj2);
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现在我需要通过使用SerialNumber过滤密钥并使用ecoID替换值来更新初始字典.
当我尝试这个时,它给出了
foreach (KeyValuePair<string, string> each in newdictionary)
{
each.Value = customList.Where(t => t.SerialNo == each.Key).Select(t => t.ecoID).ToString();
}
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无法分配System.Collections.Generic.KeyValuePair.Value' - …
这是我第一次使用Django rest框架的Web服务.
这就是我的settigngs的样子
INSTALLED_APPS = (
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'rest_framework'
)
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data.py:
from rest_framework.views import View
from rest_framework.response import Response
from rest_framework import status
ORDERS = [
['0', 'John', 'Apple'],
['1', 'John', 'Orange'],
['2', 'John', 'Lemon'],
['3', 'Jane', 'Apple'],
['4', 'Jane', 'Banana'],
['5', 'Bill', 'Pineapple'],
['6', 'Bob', 'Orange']
]
class Orders(View):
"""
Provides access to all orders within the system.
"""
def get(self, request):
"""
Return a list of all orders.
"""
return ORDERS
class CustomerOrders(View):
""" …
Run Code Online (Sandbox Code Playgroud) 使用 .NET SDK 进行 CosmosDB 查询时,可以以FeedOptions
对象的形式为该查询指定选项。
财产的文档FeedOptions.DisableRUPerMinuteUsage
非常少:
DisableRUPerMinuteUsage 用于启用/禁用请求单位 (RU)/分钟容量,以便在常规配置的 RU/秒耗尽时为查询提供服务。
是否有两个配置选项可用?RU/s 和 RU/min ?
我在 Azure 门户的“规模”设置页面中没有看到类似的内容。
在我的角度应用程序中,我得到如下的Json数据.
[{"id":"5","name":"Immidiate"},
{"id":"4","name":"30 days"},
{"id":"3","name":"21 days"},
{"id":"2","name":"14 days"},
{"id":"1","name":"7 days"},
{"id":"6","name":"Custom"}]
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我需要一个如下所示的输出,
[{"Name":"5","Data":"Immidiate"},
{"Name":"4","Data":"30 days"},
{"Name":"3","Data":"21 days"},
{"Name":"2","Data":"14 days"},
{"Name":"1","Data":"7 days"},
{"Name":"6","Data":"Custom"}]
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这是我的代码
$rootScope.DashboardData["Name"] = widget.seriesname ;
delete $rootScope.DashboardData[widget.seriesname];
$rootScope.DashboardData["data"] = widget.dataname ;
delete $rootScope.DashboardData[widget.seriesname];
widget.chartSeries = $rootScope.DashboardData;
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其中widget.seriesname是"id",而widget.dataname是"name".
问题:密钥没有改变!
我有一个看起来像这样的JSONarray,
{
"TotalMemory": [{
"key": "TotalMemory",
"values": [
[118, 10]
]
}],
"Freememory": [{
"key": "Freememory",
"values": [
[121, 10]
]
}],
"BufferSize": [{
"key": "BufferSize",
"values": [
[123, 10]
]
}],
"TotalSwapMemory": [{
"key": "TotalSwapMemory",
"values": [
[125, 10]
]
}],
"UsedSwapMemory": [{
"key": "UsedSwapMemory",
"values": [
[127, 10]
]
}],
"FeeSwapMemory": [{
"key": "FeeSwapMemory",
"values": [
[129, 10]
]
}],
"": [{
"key": "",
"values": []
}]
}
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我需要删除那里空的最后一项.我已经按照删除空,但这不起作用.
$scope.displayData = $scope.displayData.filter(function() { return true; }); …
Run Code Online (Sandbox Code Playgroud) 使用angular2 app我已经为我的vs代码安装了tslint扩展,
该应用程序工作正常,但tslint显示要更正的行,
import { Injectable } from '@angular/core';
@Injectable()
export class UserProfileService{
constructor() {
}
getProfile() {
return this.profile;
}
profile: Object = {
profilePic: 'http://www.appresume.com/cv_templates/cv_2_1/conf/images/profile.jpg',
firstName: 'John',
lastName:'Doe',
detailUrl : ''
};
}
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什么是修复?
我正在尝试从文档数据库中查询一些信息,当我们有 id 字段时,它以前可以工作,我最近用 Guid 字段替换,当我们运行以下查询时,它会抛出如下错误
代码:
queryString = string.Format(
"SELECT f.keys.Timestamp,f.keys.selectedFieldId FROM {0} f WHERE f.logevent = '{1}' AND f._ts > {2} AND f._ts <= {3}",
DocumentDbRepository.DatabaseId, Enums.Events.ApplicationAuthenticationSuccess, refUnixTime,
currentUnixTime);
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错误:
"message":"Syntax error, invalid numeric value token '4d5f'."
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任何帮助,将不胜感激!
我用此代码更新了我的 cosmos db 容器
var containerResponse = await _cosmosContainer.ReadContainerAsync();
var containerProperties = containerResponse.Resource;
if (containerProperties.DefaultTimeToLive == null)
{
containerProperties.DefaultTimeToLive = 60 * 60 * 24 * 180; // set 180 days default TTL
await _cosmosContainer.ReplaceContainerAsync(containerProperties);
}
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更新 Cosmos DB TTL 容器设置是否会对旧项目产生影响?
c# ×4
azure ×3
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dictionary ×1
django ×1
filter ×1
if-statement ×1
json ×1
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