webform validation

For Windows and Web applications, the path they run is different, so the key is to determine which program is currently running. So we can use the following code: String Path = "";If (system. environment. currentdirectory = appdomain. currentdomain. basedirectory) // Windows applications are equal{Path = appdomain. currentdomain. basedirectory;}Else{Path = appdomain. currentdomain. basedirectory + "bin /";} In this way, if we write a class library and use assembly. loadfrom in the class libra

Step 1:Add a resource folder "app_globalresources" to your project" Step 2:Locate the local resource file and copy it all to app_globalresources.All ASP. NET controls have local resource files. By default, these files are placed in the following directory:C:/program files/developer Express. Net VX. Y/sources/devexpress. Web. aspxglobalresources/Step 3:Go to the devexpress website to download the Chinese resource files of the corresponding version. It does not matter if there are no resources of

Use the FileUpload control to upload the file.The Accept= property ". Jpg,.jpeg,.png" setting can only be seen by the file type.1. Upload command execution on the server2, in JS control the size of the upload file13. Limit the size of uploaded files on the server1 if 1024x768 1024x768 4 )2 {3 " file too large! "; 4 return ; 5 }4. Limit the types of files you see :Accept= ". Jpg,.jpeg,.png" To add this property setting in the control.5. ExpansionIn the Chan

when created) M=this. Master as master page type; Invoke master page methods to manipulate master page elements In addition, master pages can be nested, that is, the master page is built on top of the original master page. This not only further improve the code reuse, and in the overall appearance of the site consistent, the various modules have their own sub-style. For example, the overall appearance of a company's website is similar, and each department has its own sub-appearance.Nes

";session["User"]=u;Response.Redirect ("url");Value: Users uu=session["user"] as Users;Label1.text= UU. Username+uu. PassWord;(5), the session after the end of the value can be directly released.session["AAA"]=NULL;4, the value of the Cookie can only wear string type.Transmit value: string s =textbox1.text;response.cookies["AA"]. Value=s;response.cookies["AA"]. Expires=datetime.now.adddays (3); Set Cookies3 days to expire. Response.Redirect ("url");Value:string ss=request.cookies["AA"]. Valu

Button classButton-NoneSubmit-buttonReset-NoneImage-imagebuttonSelect ClassRadioRadioButtonList-layout of threeListItem Enable selected Text ValueCheckBoxCheckBoxList-layout of threeListItem Enable selected Text ValueThere are two ways of binding data:DataSourceTraverse Create ListItemValue of twoRadio can use SelectedItemMultiple selection to use traversal--------------------------------------Data option cannot be changed when binding data is presentPage_Load event will be executed every time t

c/S client applicationWinFormWpf--after WPF was developed in WinForm,--gui graphical user interface (graphical display of computer operation user interface)b/S Web-side application (Web,web application)asp--Two branches-- ASP. WebForm--ASP. NET MVCOperating mechanism:C--The code needs to install dedicated client software on the client, just go to the database on the server to access datab/S--The program code executes on the server, the client only re

First, built-in objects1, ApplicationStorage on server side, consuming server memoryLife cycle: PermanentThis is the object that everyone accesses.Pass Value: The object type can be passed to the objects. string S =textbox1.text;application["AAA"]=S;Value:if (application["AAA"]!=null){label1.text=application["AAA"].tostring ();}2, ViewStateViewState is the clas= "Aspnethidden" div in the HTML code generated after ASP, with many hidden fields.These are called ViewState.Ii. command usage of repeat

Ajax Code$.ajax ({ type: "GET", URL: "/ajaxhandler/getplugincode.ashx", data: "templateid=" + TemplateID + " Templatepath=Principle: Use objects to determine the status of returned results (previously handled with string splitting, there is a problem)Handler CodeDefining Output objects public class Jsonobj {public string Key {get; set;} public string Value {get; set;} }Initialize the result variableJsonobj _result = ne

Repeater:HeaderTemplate-Execute again at load startItemTemplate-How many data are executed and how many timesFooterTemplate-executed at the end of the loadAlternatingItemTemplate-Alternating Item template 1 1 protected void Page_Load (object sender, EventArgs e) 2 {3 if (! IsPostBack) 4 {5 repeater1.datasource = new Usersda (). Select (); 6 Repeater1.databind (); 7 }8 }Image image, can be directly to the URLFileupdate File UploadCalendar c

(unreliable).Return e:c# Learn get current path get current path bindebugThis.gettype (). assembly.location;Gets the full path of the current process, including the filename (process name).Sorry static method is not availableReturn e:c# Learn get current path get current path Bindebug get current path. exe String path = ""; if (system.environment.currentdirectory = = appdomain.currentdomain.basedirectory)//windows application is equal to {path = Appdomain.currentdomain.basedirectory; else {p

why. If a friend is clear, you can leave a message in the back, greatly appreciated.5. Close the current modal frameThe function is simple: $.pdialog.closecurrent (), which can be called when you need to close.Why do I have to say something special about this? As you know, pop-up modal boxes are used to add or modify data. So how do we refresh the data on the parent page after the modal box is closed? As we said before, DWZ is dynamically loading the page onto a Div, in other words, while the m

The Webform+easyui-based business management system formation Tour-construction Plan Inquiry (Ⅷ), mainly introduces the data drilling through the report tool, obtains the construction plan detail information.Let's take a look at Paramquerygrid. "Row merge" and "column merge"One, "column merge" effect Take the numbering configuration interface as an example, as shown in.Set up a table column merge with the following code.1 /** Set table column me

On the "Webform+easyui-based project management system formation Journey-Login Settings", mainly introduces the system browser and compressed image tools online Download installation, these pre-preparation is very important.Recently busy with the project management system in the various modules, using business processes to string together, may update the blog is not so fast, I hope you have a lot of understanding.1. Login Interface The system login

ControllerUsing system;using system.collections.generic;using system.linq;using system.web;using System.Web.Mvc;namespace mvcapplication2.controllers{public class Homecontroller:controller { //// GET:/home/ Public ActionResult Index () { viewdata["Script"] = ""; return View ();}} }ViewMVC ASPX (webForm) view engine

Our graduation design is to use C #, mode for b/s, but I look at the webform of C # seems to use ASP.net, is not that the C # write the B/s mode of the program is basically using asp.net? Hope advice ... Asp. NET is a compiled, based on. NET environment, can be used with any. NET-compatible languages (including VisualBasic.NET, C #, and JScript.NET.) Authoring applications. In addition, the entire. NETFramework can be used by any ASP.net application.

Both require the introduction of namespaces: Using System.Drawing; First, picture watermark Front photoshuiyin.aspx Code: Background Photoshuiyin.aspx.cs Code: protected void Page_Load (object sender, EventArgs e) { Button1.Click + = button1_click; } void Button1_Click (object sender, EventArgs e) { //1, making canvas System.Drawing.Image img = System.Drawing.Image.FromStream (fileupload1.filecontent); Graphics g = Graphics.fromimage (img); Watermark style: Draw Something

1. First create an Access database called MYDB.ACCDB2. He copied it to WebForm and placed it under the App_Data folder.3, in the App_Code folder to build a package statement, Query method, connection statement, where the code in STUDENTDA:PrivateOleDbConnection Conn; PrivateOleDbCommand cmd; PublicStudentda () {conn=NewDBconnection (). Conn; CMD=Conn. CreateCommand (); } PublicListSelect() {ListNULL; Cmd.commandtext="Select *from Student"; Con

Use Codefirst to add and modify database file summaries under the asp.net4.5 framework.Establish:1. Building Model Classes2. In package Manager Console, run the command:enable-migrations -ContextTypeName ContosoUniversityModelBinding.Models.SchoolContext3. The system automatically generates the Configuration.cs file, where the seed method is used to initialize the database4. Run the commandupdate-database5. The database file has been addedModify:1. Modify the field of the Model class2, in the Pa

determine if it is empty42String ma = Price2. Text;//Take text to determine if it is empty4344//First determine whether the text box is empty in the second condition45if (mi! ="" ma! ="")46{47Decimal min =Convert.todecimal (Price1. Text);48decimal max = Convert.todecimal (Price2. Text); 49 50 list= list. Where (p=>p.price.value>=min p.pricemax). ToList (); 51 52 }53 54 // Specify the data source to display Span style= "color: #008080;" >55 repeater1.datasource = List; Repeater1.databind () 5