.Net Core

[Knowledge point] C # class library,1. How to annotate the methods in the released C # DLL class library When a class library is referenced by a third party, no comments are carried when the class library is generated by default. Therefore, when

UWP: record the pitfalls you have stepped on over the past few days. Recently, I was playing Microsoft's Desktop Bridge Project and encountered the following pitfalls: 1. The document provides the magic modification method for the js project. In

The takeout applet is connected to the implementation of the flying goose ticket printing, and the takeout applet is connected to the flying goose Take-out ordering is a race against time in terms of process processing. Most buyers order food only

[. NET Core] simply reads the json configuration file, corejsonSimple reading of the background of the json configuration file Currently, it is difficult to read configuration files from. NET Core on the Internet. . NET Core does not use xml

NPOI export, // Export all expertPara = GetExpetPara (); expertPara. beginIndex = pager. currentPageIndex; expertPara. endIndex = int. maxValue; DataSet ds = ExpertBLL. getPriMngExpertDate (expertPara); DataTable dt = ds. tables [0]; // determines

. Net white box test and. net Box test I haven't written a blog for a long time. It's just this time that I am idle and I want to record it. Prerequisites: Recently, the Department needs white box testing tools and has searched many materials on the

Set in C # (Array/ArrayList/List /HashTable/Dictionary ), Int [] numbers = new int [5]; // The length is 5 and the element type is int.String [,] names = new string [5, 4]; // a two-dimensional array of 5*4Byte [] [] scores = new byte [5] []

We often need to check the actual length of a string containing Chinese characters in the actual process,This is because of Chinese and English characters. It may be difficult to judge.The principle is the same as that in asp. It is determined one

Copy codeThe Code is as follows:Public partial class _ Default: System. Web. UI. Page{Protected string title = "Hello everyone"; // front-end Code Protected void Page_Load (object sender, EventArgs e){DataSet ds = new DataSet ();String SQL =

Because DropDoweList is different from button, you cannot specify its CommandName. Therefore, you cannot capture the index of the row in a conventional way. After some twists and turns, I found the NamingContainer attribute to solve the

Copy codeThe Code is as follows:

First look at the instanceCopy codeThe Code is as follows:Function webChart (){Var t = document. getElementById ("txtReceive ");If (t. value = null | t. value = ""){Alert ("please search first ");}Else {Alert (t. value );Document. getElementById

Use Application_BeginRequest of Global. asax to implement url rewriting without a suffixCopy codeThe Code is as follows:

Use Application_Error of Global. asax to Implement error recordsError LogCopy codeThe Code is as follows:Void Application_Error (object sender, EventArgs e){// Code that runs when an unhandled error occursException ex = Server. GetLastError ().

Capture news from Sina ,: Use Google's browser to view the source code: through analysis, we know that the content we are looking for is between the following two tags:Copy codeThe Code is as follows: Content .... : Content .... Use VS to create

First, we need to introduce the json script at the front end to facilitate js Object serialization. Then we declare a class in the foreground, put the value you want to save into the class, and serialize it finally. Copy codeThe Code is as

When writing aspx, you may not be careful to remove AutoEventWireup = "false", and you may die very ugly, The Page_load part will be executed twice when a page is loaded! Do not remove AutoEventWireup = "false.   When you set this attribute to

Copy codeThe Code is as follows:DataTable dt = new DataTable ();Dt = ds. Tables ["All"]. Clone (); // Clone the All structure and pass it to dtDataRow [] dr = this. dataSet31.Tables ["Product"]. Select ("bc = 1"); // obtain the row that meets the

Watermarks are used to prevent image theft.Two ways to achieve the watermark Effect1) You can add a watermark when uploading a file.A) Benefits: Compared with the two methods, each time a user reads the image, the server sends it directly to the

. Aspx:Copy codeThe Code is as follows: 'Title = ''> . Cs:Copy codeThe Code is as follows:Protected string IsMultiLang (object pTitle, object pTitleValue){String mReturn = "";If (pTitleValue. ToString ()! = "Null" & pTitleValue. ToString ()! = "")