"] = HT;
}
4, in the Default.aspx to add a hyperlink, link to shopcart.aspx, in the shopcart.aspx display user purchase of merchandise information.Tips:
A, the following variables are defined first in Shopcart:
Hashtable HT;
DataTable DT;
String connstring=@ "Datasource=.\sqlexpress;initial catalog=test;integrated security=true";
SqlConnection Conn;
SqlCommand cmd;
SqlDataReader SDR;
B, add a GridView to
{ ht.Add(id, 1); Session["shopcar"] = ht; } } }
4. Add a hyperlink to the Default. aspx file to link to shopcart. aspx. The shopcart. aspx file displays the product information you have purchased.Tip:
A. Define the following variables in shopcart:
Hashtable ht; DataTable dt; string connstring=@"DataSource=.\SQLEXPRESS;Initial Catalog=test;Integrated Security=True"; SqlConnection conn; SqlCommand cmd; SqlDataReader sdr
";Sqldatareader SDR = cmd. executereader ();SDR. Read ();Mydata = (byte []) SDR ["imgfile"]; // read the bitstream of the first imageInt arraysize = mydata. getupperbound (0); // obtain the dimension upper limit of the bit stream array stored in the database, which is used as the upper limit for reading streams.
Filestream FS = new filestream (@ "C: \ 00.jpg", f
Using System;
Using System. Data;
Using System. Configuration;
Using System. Web;
Using System. Web. Security;
Using System. Web. UI;
Using System. Web. UI. WebControls;
Using System. Web. UI. WebControls. WebParts;
Using System. Web. UI. HtmlControls;
Using System. Data. SqlClient;
Public partial class _ Default: System. Web. UI. Page{Protected void Page_Load (object sender, EventArgs e){// ------------------- SqlConnection, SqlCommand, and SqldataReader usage -------------------//
// The foll
lpc43xx Sgpio ConfigurationThe lpc43xx Sgpio peripheral is used to move samples between USB and the ADC/DAC chip (MAX5864).The Sgpio is a peripheral, which has a bunch of 32-bit shift registers.These shift registers can be configured to act as a parallel interface of different widths.For HACKRF, we configure the Sgpio to transfer eight bits at a time.The Sgpio interface can also accept an external clock, which we use to synchronize transfers with the
This is the tool software associated with the Kindle ebook. They can help us solve the problems we may encounter when using e-books on a daily basis, such as the Kindle management tool, the Kindle conversion tool, the Kindle ebook maker, the Kindle push tool, etc., to manage ebooks, push e-books, convert ebook formats, modify e-book covers, Add e-book fonts, hack Kindle DRM, rearrange PDF documents, optimize my clip, clean up the SDR folder, and more,
(){
// Read the image to be stored as a data streamFilestream FS = new filestream (@ "E: \ c.jpg", filemode. Open, fileaccess. Read );Byte [] btye2 = new byte [fs. Length];FS. Read (btye2, 0, convert. toint32 (FS. Length ));FS. Close (); Using (sqlconnection conn = new sqlconnection (sqlconnstr )){Conn. open ();Sqlcommand cmd = new sqlcommand ();Cmd. Connection = conn;Cmd. commandtext = "insert into t_img (imgfile) values (@ imgfile )";Sqlparameter par = new sqlparameter ("@ imgfile", sqldbtyp
)}; returnsqlhelper.execurenonquery (Sql,commandtype.text,sps); } /// ///querying data for related items by autoid and returning the model class/// /// /// PublicTblperson Getmodelbyid (intautoid) { stringsql ="SELECT * from Tblperson where [email protected]"; Tblperson Model=NewTblperson (); using(SqlDataReader SDR = Sqlhelper.executereader (sql, CommandType.Text,NewSqlParameter ("@id", autoid))) {
necessary.Business Layer =? Data layer, hope you can give me some advice.The second is a small problem:I would like to ask, for example, if I have two repeater on one page to bind data, do I use a stored procedure to return both tables or try to bind one table in two separate workshops. in this way, the efficiency is better.For example, when a user information is obtained at the data layer
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