.Net Core

ASP. NET provides a control class: System. Web. UI. HtmlControls. HtmlGenericControl. It can implement an example of HTML elements, such as controlling the element in aspx in. cs code (note that it is not ). We know that the page TITLE is included

Generally, when a user logs on to a page, we can determine in the Code whether the current user is logged on. If the user is not logged on, we will redirect to the logon page, and pass the current Url to the logon page through Url parameters. If URL

Copy codeThe Code is as follows:String connstr = System. Configuration. ConfigurationManager. ConnectionStrings ["DqpiHrConnectionString"]. ToString ();SqlConnection conn = new SqlConnection (connstr );SqlDataAdapter sda = new SqlDataAdapter

Assume that the ParentForm. aspx page contains TextBox1 text box and Open button.Click the Open button to bring up SubForm. aspx. The SubForm. aspx page contains the TextBox1 text box and the Close button.Click Close to Close the SubForm. aspx page,

A filter is available in J2EE Web development. The filter can intercept specified URL access and execute the filter method. Based on the actual application, you can modify the Request Code and determine the session information in the filter, or

The so-called Single Sign On (Single Sign On) means that in multiple application systems, users only need to log On once to access all mutually trusted application systems. In fact, the technical implementation of programmers is to share cookies

When using a third-party class library, you will often see its own Demo program, including such a Demo license fileCopy codeThe Code is as follows:Infragistics. Win. Misc. UltraButton, Infragistics2.Win. Misc. v11.1, Version = 11.1.20111.2009,

Copy codeThe Code is as follows:Using System. Text. RegularExpressions;Using System. Diagnostics;Public class test{Public test{}Public static string GetCustomerMac (string IP) // para IP is the clients IP{String dirResults = "";ProcessStartInfo psi =

the input content contains line breaks and is saved to the database, if you directly check whether there is a line break, but the query result is displayed in text format, you will find that there is a line break.Next, the question is: why is there

Recently, when I was working on a project, I needed to add a function to upload user images. Uploading user images actually involves a lot of things, it is not just an html tag or a FileUpload control blocked by asp.net. Currently, the website does

The delegate function in. Net is similar to the method pointer in c or c ++. It can call the delegate to complete a function like calling a method, or return a certain type of result. However. net is a more advanced language, and the Delegate is

 Copy codeThe Code is as follows:Public bool Add (Liuyan refmodel){String SQL = "insert into liuyan (name, phone, zhiwei, gongsi, addr, country, dianyou, content, adddate) values (@ name, @ phone, @ zhiwei, @ gongsi, @ addr, @ country, @ dianyou, @

The System. Xml. Linq namespace in. Net provides the support for linq to xml. XDocument, XElement, and XText and XAttribute in this namespace provide key methods for reading and writing xml documents.1. Use linq to xml to write xml:The XDocument

We encountered the following problems during the entire MFC tonight. D: \ My Documents \ visual studio 2008 \ projects \ virtualosc \ arraylisttype. h (171): error C2244:"ArrayListType : maxListSize": the function definition cannot match the

Add the ASP. NET account permission to the following directory.C:/WINDOWS/Microsoft. NET/Framework/v2.0.50727/Temporary ASP. NET Files ASP. NET accounts have the following permissions: Read and run, list folder directories, read, and write. This

Recently, the customer requested to export a tree Directory into a folder structure and provide the download function. At the beginning, it was easy to implement the function, and the basic function was completed in the shortest time, after being

In many cases, the performance bottleneck of our SERVER is when querying the database, so it is very important for the database cache. Is there a way to implement the SQL SERVER database cache, when the data table is not updated, it is read from the

Default. aspx page:Copy codeThe Code is as follows: Onpageindexchanging = "GridView1_PageIndexChanging" onrowcancelingedit = "GridView1_RowCancelingEdit"Onrowediting = "GridView1_RowEditing" onrowupdating = "GridView1_RowUpdating"Onrowdeleting =

Sometimes it is not good to check files one by one to ensure that they will not overwrite the previously uploaded files when they are uploaded, therefore, the GUID can be automatically generated here to rename the file name to the original name of

There are two possible cases. Use the ext control and asp control for analysis.1. If it is an asp control, you must obtain the id of the current control when prompted. You can obtain the corresponding options by querying the source code..2. If it is