.Net Core

This article will solve the following problems:1. What is System. Web. UI. LiteralControl?2. Why does it happen to forcibly convert an object of the type "System. Web. UI. WebControls. HiddenField" to a type ...... Error3. The control for finding

The following uses the namespace System. Diagnostics as an example in ping;System. the Diagnostics namespace contains classes that can interact with system Process Event Logs and performance counters. They are generally used to help diagnose and

First, let's take a look at the following code snippet. We hope that you will first submit the data to the specified third-party page when clicking the Button on the page, and then execute the Page_Load event in the background.Copy codeThe Code is

In the Asp.net release, most security problems are caused by the following three aspects:1. Upload2. Cross-Site3. InjectionThe upload security issue is not covered in this article. Here we only discuss the issue of cross-site and injection, and both

1. Detected Request. Form values that are potentially dangerousCause:(1) The validateRequest attribute is not correctly set on the data submission page or webconfig.(2) Two Solution:Solution 1: add this sentence to the. aspx file header: Solution 2:

1. class library to be referencedCopy codeThe Code is as follows:Using System. Net;Using System. IO;Using System. Text;Using System. Text. RegularExpressions; 2. Obtain the key code of the webpage content of other websitesCopy codeThe Code is as

1. ClientIDModeRendering ASP. NET controls automatically generate an ID. When we reference them in client scripts, it creates a lot of trouble. Although it is a simple series of named containers and IDs, however, the range of IDS generated cannot be

1: Requests per second) The quantitative description of the server's concurrent processing capability. The unit is reqs/s. It refers to the number of requests processed per unit time under a number of concurrent users. The maximum number of requests

Copy codeThe Code is as follows:Using System;Using System. Data;Using System. Configuration;Using System. Collections;Using System. Web;Using System. Web. Security;Using System. Web. UI;Using System. Web. UI. WebControls;Using System. Web. UI.

1. ClientIDModeRendering ASP. NET controls automatically generate an ID. When we reference them in client scripts, it creates a lot of trouble. Although it is a simple series of named containers and IDs, however, the range of IDS generated cannot be

As the backend optimization space becomes smaller and smaller, more and more websites are paying more attention to the optimization of front-end performance, that is, browser and http optimization. Here we will write two simplest and most effective

Copy codeThe Code is as follows:Public partial class ExcelHelper: IDisposable{# Region FiledsPrivate string _ excelObject = "Provider = Microsoft. {0 }. OLEDB. {1}; Data Source = {2}; Extended Properties = \ "Excel {3}; HDR = {4}; IMEX = {5

The IIS7 site starts and processes the request as follows: Steps 1 to 6 are to process application startup. After the application is started, you do not need to perform this step again. The eight steps are as follows: When the client browser

Then I used VSPaste (the original author's website cannot be found), and I felt that the code was not good. CodePoste is also used (haha, also found on the internet). It feels pretty good, but the display of the number of rows makes me feel a little

I found a lot of questions on the Internet and found that the answers were messy. In fact, in Asp.net, the page object has a property that enables the page to submit or update data, and then return to the original page location, including the scroll

One problem is that the form name and object attribute name (you can also use fields for Attribute assignment) must be the same, which is a bit insecure, but the background is quite helpful, many background applications are used to fill in the form

To dynamically assign values or values to attributes or fields of A Type instance, you must first obtain the instance or Type. Microsoft has provided enough methods for us.First, create a test class.Copy codeThe Code is as follows:Public class

Problem: 1. The title and option of the vote cannot be bound cyclically.Solution: add the ItemDataBound event to the Repeater binding. Use RadioButtonList to bind the event with the source code:Default Page, Source PageCopy codeThe Code is as

Let's take a look at the demand analysis:3. =: Click the next page to trigger the event, call ajax to search for the data on the next page in the database, and return the data on the page.There are two events, both js events. We use jquery code to

There is no problem with filling, but the content in the drop-down table cannot be obtained from the server. The page code is as follows.Copy codeThe Code is as follows: check if the dropdownlist control filled with js can be read on the server?