我最近安装了visual studio 2013.从网上下载了一个示例项目后,我运行它时,它给了我以下错误 -
The type or namespace name 'Mvc' does not exist in the namespace 'System.Web' (are you missing an assembly reference?)
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如何克服这个错误?
我将jQuery AJAX调用的登录信息发送到MVC 4控制器:
$.post(url, data, function (response) {
if (response=='InvalidLogin') {
//show invalid login
}
else if (response == 'Error') {
//show error
}
else {
//redirecting to main page from here for the time being.
window.location.replace("http://localhost:1378/Dashboard/Index");
}
});
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如果登录成功,我想根据用户类型将用户从服务器端重定向到适当的页面.如果登录失败,则会将一个字符串发送回用户:
[HttpPost]
public ActionResult Index(LoginModel loginData)
{
if (login fails)
{
return Json("InvalidLogin", JsonRequestBehavior.AllowGet);
}
else
{
// I want to redirect to another controller, view, or action depending
// on user type.
}
}
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但有问题:
如果此方法返回'ActionResult',那么我收到错误not all code paths …
我一直在尝试ASP.NET5 MVC6应用程序.在以前的版本中,有一个目录App_Data.我用这个文件夹来存储错误日志.但在最新版本中找不到它.有帮助吗?
我试图从目录中查找文件:
String[] search1 = Directory.GetFiles(voiceSource, "85267-*.wav")
.Select(path => Path.GetFileName(path))
.ToArray();
String[] search2 = Directory.GetFiles(voiceSource, "85267 *.wav")
.Select(path => Path.GetFileName(path))
.ToArray();
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但在search1
,它选择85267-s.wav
和85267 -s.wav
.但我只想85267-s.wav
被选中.
search2
做得很好
我怎样才能做到这一点?
我收到以下错误 -
Failed to compile
./node_modules/primereact/components/dropdown/DropdownPanel.js
Module not found: Can't resolve 'react-transition-group' in 'D:\my-app\node_modules\primereact\components\dropdown'
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这是我的 package.json
"dependencies": {
"@testing-library/jest-dom": "^5.11.4",
"@testing-library/react": "^11.1.0",
"@testing-library/user-event": "^12.1.10",
"@types/react-transition-group": "^4.4.1",
"primeflex": "^2.0.0",
"primeicons": "^4.1.0",
"primereact": "^6.1.0",
"react": "^17.0.1",
"react-dom": "^17.0.1",
"react-scripts": "4.0.3",
"web-vitals": "^1.0.1"
},
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在 App.js 中
import React, { useState } from 'react';
import { Dropdown } from 'primereact/dropdown'; //getting error after adding this line
import 'primeflex/primeflex.css';
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我在这里缺少什么?
我希望在会话超时时自动重定向到登录页面.
在web.config文件中,我有以下代码
<configuration>
<system.web>
<sessionState mode="InProc" timeout="1"/>
</system.web>
</configuration>
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在Global.asax文件中 -
protected void Session_End(object sender, EventArgs e)
{
Response.Redirect("LoginPage.aspx");
}
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但超时后,我收到以下错误:
HttpException未被用户代码处理.
在这种情况下无法获得响应.
有什么线索可以解决这个问题吗?
我有一个从Queue类继承的自定义Queue类.它有一个事件ItemAdded.在此事件的事件处理程序中,我正在执行一个方法.但它运行的不是主线程,虽然我想在主线程中.我不知道怎么做.有什么建议吗?
//My custom class
using System;
using System.Collections; //Required to inherit non-generic Queue class.
namespace QueueWithEvent
{
public class SmartQueue:Queue
{
public delegate void ItemAddedEventHandler(object sender, EventArgs e);
public event ItemAddedEventHandler ItemAdded;
protected virtual void OnItemAdded(EventArgs e)
{
if (ItemAdded != null)
{
ItemAdded(this, e);
}
}
public override void Enqueue(object Item)
{
base.Enqueue(Item);
OnItemAdded(EventArgs.Empty);
}
}
}
//Winform application
using System;
using System.ComponentModel;
using System.Windows.Forms;
using QueueWithEvent;
namespace TestApp
{
public partial class Form1 : Form
{
SmartQueue qTest …
Run Code Online (Sandbox Code Playgroud) 我在我的项目中使用ToolTip控件.我想把它的背景颜色设置为红色.我已将ownerdraw属性更改为true,将backcolor更改为红色.但没有结果.有什么建议吗?
此致,skpaul.
I am trying to get details from an exception occurred in my c# (4.0) asp.net web application. I have .pdb file in bin folder. The following code is not working as expected -
protected void Button1_Click(object sender, EventArgs e)
{
try
{
//throwing Exception
using (SqlConnection connection=new SqlConnection(""))
{
connection.Open();
}
}
catch (Exception exception)
{
//Get a StackTrace object for the exception
StackTrace st = new StackTrace(exception, true);
//Get the first stack frame
StackFrame frame = st.GetFrame(0); //returns {PermissionDemand …
Run Code Online (Sandbox Code Playgroud) 我正在尝试使用chart.js 2.3.0绘制一个水平条形图 -
var MeSeContext = document.getElementById("MeSeStatusCanvas").getContext("2d");
var MeSeData = {
labels: [
"ME",
"SE"
],
datasets: [
{
label: "Test",
data: [100, 75],
backgroundColor: ["#669911", "#119966" ],
hoverBackgroundColor: ["#66A2EB", "#FCCE56"]
}]
};
var MeSeChart = new Chart(MeSeContext, {
type: 'horizontalBar',
data: MeSeData,
options: {
scales: {
yAxes: [{
stacked: true
}]
}
}
});
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但它只显示一个酒吧.我在这里想念的是什么?