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Use user controls in datalist

Datalist is more flexible than DataGrid in displaying data (or in vs2003). It should provide several templates for datalist, while some custom user controls can be flexibly placed in the template. The specific implementation is as follows: Create a user control first: Author No.: Author name: Background code: Private string au_id;Public String au_id{Set{Au_id = value;}Get{Return au_id;}}Protected void page_load (Object sender, eventargs E){If (! Ispostback){This. BIND ();}}Private void BIND (){

C # basic database operations (sqlserver)

I. Basic operations with sqlserverThe connection character is written in the configuration file in this way.[Html]The basic operation class is as follows:[Csharp]Public class SQLHelper{Private SqlConnection sqlCon = null;Private SqlCommand cmd = null;Private SqlDataReader sdr = null;Public SQLHelper (){SqlCon = new SqlConnection (ConfigurationManager. ConnectionStrings ["ConnStr"]. ConnectionString );}/// /// Open the database connection/// /// Privat

The specified image does not exist.

Web. config: Copy codeThe Code is as follows: Corresponding. cs page: Copy codeThe Code is as follows: if (sdr. Read ()) { This. lblDianMianMingCheng. Text = sdr ["BuJuGongSiName"]. ToString (); DianMianId = sdr ["BuJuID"]. ToString (); If (sdr ["BuJuCarPhoto"]. ToString () = "") { This. ImageDianMian. Imag

Classic toolip usage

BackgroundCode:Protected string settoolip (string ID) // prompt{Sqlconnection con = class1.createcon ();Con. open ();String SQL = "select * From userinfo where id =" + ID;Sqlcommand cmd = new sqlcommand (SQL, con );Sqldatareader SDR = cmd. executereader ();SDR. Read (); String tooptip = "User ID:" + SDR. getint32 (0) + "" + "\ n User name:" +

Detailed examples of SQL stored procedures in Asp.net (C #)

Record setCreate procedure getarticleAsSelect * From article_content GoAsp.net call Method Sqlconnection conn = new sqlconnection ();Conn. connectionstring = data. connstr ();Conn. open ();Sqldataadapter SDR = new sqldataadapter ();SDR. selectcommand = new sqlcommand ("getarticle", Conn );SDR. selectcommand. commandtype = commandtype. storedprocedure;Dataset rs =

Press release system, SqlHelper reconstruction

); SqlDataReader SDR = cmd. ExecuteReader (); Dt. Load (SDR); Close the SDR. Close (); Conn. Close (); return to DT; } As you can see from the code above, you'll need to add a connection-open-close three-step code for each specific operation, and then we can encapsulate it a

jquery Ajax User Login Instance Summary

();SqlDataReader SDR =Cmd. ExecuteReader (commandbehavior.closeconnection);if (SDR). Read ()){Context. session["UserID"] = convert.tostring (sdr["ID"));Context. session["Stuname"] = Convert.ToString (sdr["realname"]);Context. session["Stunumber"] =Convert.ToString (sdr["Stu

asp.net jQuery Ajax User Login Function _ Practical skills

. Response.ContentType = "Text/plain"; String checkcode = ""; if (context. session["Checkcode"]!= null) { Checkcode = convert.tostring (context. session["Checkcode"]). ToLower (); } if (context. request.form["Checkcode"]. ToLower () = = Checkcode) { using (SqlConnection conn = new SqlConnection (sqlhelper.studentconnectionstring)) { String sql = "Select Id,stunumber,userpassword,realname from T_stuuser where stunumber= @UserName and userpassword= @UserPwd "; SqlCommand cmd = new SqlC

Several common methods of SQL

obtained from the adapter;Close ();Return ds;//to go back to the data stored in the DS}4. Return SqlDataReader data stream via SQL statement///To call SqlCommandpublic static SqlDataReader GETSDR (String strSQL){Open ();SqlCommand com = new SqlCommand (strSQL, conn);Sdr=com. ExecuteReader (system.Data.CommandBehavior.CloseConnection);Return Sdr;s}5. Return DataView via SQL statement????????????????????????

Unity3d connection to SQL Server database socketexception: An address error is used that is incompatible with the requested protocol

; Persist Security info=true; User Id=sa; password= Password"); voidStart () {do (); } voidDo () {con. Open (); SqlCommand com=NewSqlCommand ("SELECT * from Tb_pdic", con); SqlDataReader SDR=NULL; Try{SDR=com. ExecuteReader (); Print ("name \t\t\t\t price \ n"); while(SDR). Read ()) {print (sdr["N

Generics learning the third day--c# read the database returns a generic collection converts a dataset type to a list<t> generic collection

Tags: io ar os sp for data on log CTIDefine a class:public class UserInfo{Public System.Guid ID {get; set;}public string LoginName {get; set;}public string Loginpwd {get; set;}}Get UserInfo Generic CollectionPublic ilist{using (SqlConnection conn = new SqlConnection (CONNSTR)){using (SqlCommand cmd = new SqlCommand (SQLSTR, conn)){SqlDataReader SDR = cmd. ExecuteReader ();ilistwhile (SDR. Read ()){UserInfo

Read database return generic collection convert dataset type to list<t> generic collection

Label:Transfer from http://www.cnblogs.com/wuhuisheng/archive/2012/04/26/2471733.html 1 /// 2 ///get userinfo Generic collection3 /// 4 /// Database connection String 5 /// T-SQL to query 6 /// 7 PublicIliststringConnStr,stringsqlstr)8 { 9 using(SqlConnection conn =NewSqlConnection (connstr))Ten { One using(SqlCommand cmd =NewSqlCommand (SQLSTR, conn)) A { -SqlDataReader

ASP. NET turns on multithreading asynchronous processing

protected voidPage_Load (Objectsender, EventArgs e) { if(!IsPostBack) { Try{Thread Categorythread=NewThread (NewThreadStart (bindcategory)); Thread Newsthread=NewThread (NewThreadStart (bindnews)); Categorythread.start (); Newsthread.start (); Categorythread.join (); Newsthread.join (); } Catch(Exception ex) {Response.Write (ex); } } } voidbindcategory () {SqlConnec

The difference of DDR2 DDR3 __ Test

dense, and more power-saving technology improvements.DDR3 's development cannot be said to be a smooth one, although the original standard was released in 2005 and applied to the Intel P35 "Bearlake" chipset in 2007, but it did not replace DDR2 as quickly as the industry had expected. This has also experienced a far-reaching financial crisis on SDRAM industry, not only make the DDR3 occupy the market slower, but also make DDR3 in the technology of the world's leading memory of the giant dream o

. NET MVC Connection data Local database three ways

- - //String conn = configurationmanager.appsettings["Con"]. ToString (); + + //SqlConnection SCT = new SqlConnection (conn); - - #endregion + + #regionConnect SQL function Three A A //String conn = configurationmanager.connectionstrings["Consql"]. ConnectionString; at at //SqlConnection SCT = new SqlConnection (conn); - - #endregion - -SqlCommand SCM =NewSqlCommand (); - -Scm. Connection =SCT; -

VisualStudio2013 Getting started with SQL Server built in

Btn_open, and the other two textbox will display the corresponding data, the Btn_open code is as follows: #regionOpen ClickPrivate voidButton_Click (Objectsender, RoutedEventArgs e) { Try { if(Cb_database. Text.trim (). Length >0) { stringCon ="server= (LocalDB) \\v11.0;database="+ Cb_database. Text.trim () +"; integrated Security=true"; using(SqlConnection mycon =NewSqlConnection (Con)) { strin

Summary of three methods for connecting. net MVC to the local database,. netmvc

Summary of three methods for connecting. net MVC to the local database,. netmvc . Net MVC connection data local database three methods Public class HomeController: Controller {// GET:/Home/public ActionResult Index () {# region connect SQL function one SqlConnectionStringBuilder one = new SqlConnectionStringBuilder (); one. dataSource = "(local) \ sqlexpress"; one. initialCatalog = "xsgl1"; one. userID = "sa"; one. password = "a123456"; one. maxPoolSize = 512; SqlConnection sct = new SqlConne

C # uses the MVC framework for login verification

property of the ConfigurationManager classpublic static SqlDataReader Getreader (String sql){SqlConnection conn = new SqlConnection (connstring);SqlCommand cmd = new SqlCommand (SQL, conn);Try{Conn. Open ();return CMD. ExecuteReader (commandbehavior.closeconnection);}catch (Exception ex){Throw ex;}}}Web. config plus node3. Write Entity access classes. The name of the entity Access class is generally the entity class name +service. Concrete action entities, encapsulating entities, returning enti

C # calls itself to define table type parameters

"); Thisconnection.open (); SqlCommand sqlcmd = Thisconnection.createcommand (); Sqlcmd.commandtype = CommandType.StoredProcedure; Sqlcmd.commandtext = "P_datatable"; SqlParameter param = sqlcmd. Parameters.addwithvalue ("@LocalDT", DT); SqlDataReader SDR = sqlcmd. ExecuteReader (); while (SDR. Read ()) {ConsoLe. WriteLine ("Id:{0

Blog from sqlbulkcopy to Zhou Gong

. Before that, you only need to set the corresponding relationship. There is no doubt that this can solve my needs. It took two days to complete the demo. by reading the information from the configuration file, the corresponding relationship, SQL statement, and target table name were separated, pass in to the function for data import. The SQL statement and table name are both string, and the corresponding relationship can be stored in a hash table. It is best to store all three attributes in an

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