.Net Core

The URL is HttpUtility. UrlEncode, which converts the space to the "+" number. If you find the cause, you can solve the Bug.Reference:Copy codeThe Code is as follows:FileName = HttpUtility. UrlEncode (fileName, Encoding. UTF8 );FileName = fileName.

In Lumisoft. when the NET component obtains POP3 mails, it finds that most mails can be obtained normally. However, for some special emails, it seems that conversion errors or garbled characters may always occur, some are in the title or email

Copy codeThe Code is as follows:/// /// Compress the image/// /// Public string ResizePic (){# Region Compression Image startBool IsImgFile = true; // determines whether it is an image file.String filePathName = "123"; // file storage path (Folder

Copy codeThe Code is as follows:////// Export the data in the DataTable to the specified Excel File////// Web Page Object/// The DataTable object that contains the exported data/// Excel file namePublic static void Export (System. Web. UI. Page page,

Correct understanding of this connection pool mechanism helps us to write efficient database applications. Many people think that the SqlConnection connection is not time-consuming, because SqlConnection is executed cyclically. the average Open time

Simple sort Sorting is common during programming. However, the most common use of. Net is to sort the generic List . If T is a simple data type, it is very simple. Copy codeThe Code is as follows: Public List SortSimpleList (List list) { List.

Copy codeThe Code is as follows:// Download TransmitFileProtected void button#click (object sender, EventArgs e){ Response. ContentType = "application/x-zip-compressed ";Response. AddHeader ("Content-Disposition", "attachment?filename=z.zip

. Net uses the escape and unescape methods: In C #, use escape and unescape to add reference: Microsoft. JScript String strEscaped = Microsoft. JScript. GlobalObject. escape ("test "); Note: Some js functions are all stored under GlobalObject in

Cache Design1. When to use the cache Caching is one of the best ways to improve application performance. Cache can be used to optimize data query, avoid unnecessary network data return, and avoid unnecessary identical data processing logic. When

1. open a new window and send parameters: Transfer Parameters: Response. write (" ") Receiving parameters: String a = Request. QueryString ("id ");String B = Request. QueryString ("id1 "); 2. Add dialog box for button Button1.Attributes. Add

In the email sending system or some other websites that transfer files, the size of the files transferred by users is limited, because this not only saves the server space, but also improves the speed of file transfer. The following describes how to

I. Preface 1. What readers want to say:(Skip) Here, I would like to thank those who have read the article "ASP. NET custom synchronization HTTP processing program" and read this article.ASP. NET custom asynchronous HTTP processing program. Those who

Output cache past and present ASP. NET 1.0 introduces the concept of output cache, which allows developers to cache the output of pages, controls, controllers, and HTTP responses to the memory. In subsequent Web requests, ASP. NET can use the cached

Differences:1. The value type is usually allocated to the stack, and its variables directly include instances of variables, which is highly efficient.2. The reference type is assigned to the managed stack. A variable of the reference type usually

Stored Procedure calls are often used in the B/S system. Traditional calling methods are not only slow, but the code will continue to expand as the storage process increases, making it difficult to maintain them. The new method solves these problems

The error message is as follows:Copy codeThe Code is as follows:Server Application UnavailableThe web application you are attempting to access on this web server is currently unavailable. Please hit the "Refresh" button in your web browser to retry

DataView RowFilter Syntax [C #]This example describes syntax of DataView. RowFil ter expression. It shows how to correctly build expression string (without „ SQL injection ") using methods to escape values.Column namesIf a column name contains any

Today, I copied a code in webserice to a C # class and ran the compilation error.DataBase = Server. MapPath ("data. mdb ");Error:The type or namespace name "Server" cannot be found (is the using command or assembly reference missing ?)But I did

One MDB database is another file on the hard disk. Therefore, like other files, it will also encounter the same file access license problem. This problem means to read (and write, as you will see later in this book) database files, the application

ASP. net web forms provides developers with an excellent event-driven development mode. However, this simple application development mode brings us some small problems. For example, in the traditional ASP application, you can use the POST method to