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CodeHighlighter (freeware)http://www.CodeHighlighter.com/--> 1 Set Mycb = Activedocument. shapes. addolecontrol (classtype: = " Forms. checkbox.1 " ) 2 With Mycb. oleformat. Object 3 . Value = False 4 . Caption = " Check if over 21 " 5 End With This is the VBA code for adding a check box to a Word document. If a bar code object is

establish a Middle Layer Between DataSet and the database to coordinate access. Since DataAdapter and DataSet are closely related, I will introduce them together. DataAdapter is also divided into SqlDataAdapter and OleDbDataAdatper. The following is a typical code example (the case of OleDbDataAdapter is similar ): SqlDataAdapter myDataAdapter = new SqlDataAdapter (); DataSet myDataSet = new DataSet (); String strCom = "SELECT * FROM member information table "; MyDataAdapter. SelectCommand = ne

(1) Write: Stream MS;Byte [] picbyte;Openfiledialog1.filter = systemconst. image_file_filter;If (this. openfiledialog1.showdialog () = dialogresult. OK){If (MS = openfiledialog1.openfile ())! = NULL){Picbyte = new byte [Ms. Length];Ms. Position = 0;Ms. Read (picbyte, 0, convert. toint32 (Ms. Length ));Ms. Dispose ();}}After picbyte [] is obtained, the database can be inserted. Image Type of the corresponding databaseRead:If (Dt. Rows [0] ["photo"]! = Dbnull. value){Byte [] mybyte = (byte []) dt.

= localhost; database = test; user id = sa; Pwd = sa"; string strsql = "select fimage from test where id = 1 "; sqlcommand cmd = new sqlcommand (strsql, Conn); Conn. open (); Sqldatareader reader = cmd. executereader (); Reader. read (); memorystream MS = new memorystream (byte []) Reader ["fimage"]); image = image. fromstream (MS, true); reader. close (); Conn. Close (); ptbshow. Image = image; success ;-------------------------------------------------------------------------------------------

, named "Imgfield", and the type is Image. 2. Start visual Studio. NET, and then create a new Visual C # Windows application project.3. Drag two Button controls from the Toolbox onto the default form Form1.4. In the Properties window, change the Button1 Text property to save to a database (from a file) and change the Button2 Text property to save to a file (from the database).5. Add the following code to the top of the code window:Using System.Data;Using System.Data.SqlClient;Using System.IO;6.

);Sqlcommandbuilder mycb = New Sqlcommandbuilder (DA );Dataset DS = New Dataset ( " Myimages " );Da. missingschemaaction = Missingschemaaction. addwithkey;Filestream FS = New Filestream ( @" C: \ test. rmvb " , Filemode. openorcreate, fileaccess. Read ); Byte [] Mydata = New Byte [Fs. Length];FS. Read (mydata, 0 , System. Convert. toint32 (FS. Length ));FS. Close ();Da. Fill (DS, " Myimages " );Datarow myrow;Myro

How to save images to the Oracle database (Code tutorial ), 1. Save images to the Oracle database The structure of the example Table NEWS is: newsid number (10), title varchar2 (100), image (blob) Method 1: Use the OracleCommandBuilder class (this class is used to automatically generate single table commands used to coordinate DataSet changes and associated databases .) Dim cn As New OracleConnection ("data source = site; uid = gf; pwd = macro;") cn. open () Dim da As New OracleDataAdapter ("se

1. Save images to the Oracle database The structure of the example Table news is: newsid number (10), title varchar2 (100), image (BLOB) Method 1: Use the oraclecommandbuilder class (this class is used to automatically generate single table commands used to coordinate dataset changes and associated databases .) Dim cn as new oracleconnection ("Data Source = site; uid = GF; Pwd = macro ;")CN. open () Dim da as new oracledataadapter ("select * from news", CN)Dim

When I encountered an oracle SQL problem during the database installation package today, when I directly inserted more than 4000 characters using the insert statement, an error is reported, no matter what field type is used (varchar2 \ long \ clob has been tried and cannot solve the problem), I asked in the dev-club database version, xiaoxiang Jianqiang said that Oracle cannot directly insert strings above 4000, and introduced a previous ASP syntax to insert strings above 4000 characters.Article

=");Conn. Open ();da = new System.Data.SqlClient.SqlDataAdapter ("SELECT * FROM Test", Conn);DT1 = new System.Data.DataSet ();Da. Fill (DT1, "test");DataRow Myrow;for (int i=0;i{Myrow = dt1. Tables[0]. NewRow ();Then Add the new row to the collection.myrow["ID"] = i.ToString ();Dt1. Tables[0]. Rows.Add (Myrow);}System.Data.SqlClient.SqlDataAdapter DAA = new System.Data.SqlClient.SqlDataAdapter ("Select ID from Test", conn);System.Data.SqlClient.SqlCommandBuilder

/*c++ class function to do callback function * ** * Here is only a demo/#include#includeClass Cfun_callback{Static DWORD WINAPI Cbfun (void * p);PublicCfun_callback ();~cfun_callback ();Privateint a;//};DWORD WINAPI Cfun_callback::cbfun (void* p){int A is wrong to write, static functions cannot access non-static membersif (P==null) return 0;((Cfun_callback *) p)->a=100;printf ("Static function calls Non-static member:%d\n", ((Cfun_callback *) p)->a);printf ("The thread starts running \ n");retur

. DataAdapter's work is the basis of the dataset, which is to create a dataset and the middle tier of the database to coordinate access. According to the same type of database can be divided into SqlDataAdapter and OleDbDataAdapter two kinds of adapters.SqlDataAdapter adapter = new SqlDataAdapter ();String strSQL = "SELECT * from TableName";Adapter. SelectCommand = new SqlCommand (strsql,conn);SqlCommandBuilder MYCB = new SqlCommandBuilder (adapter);D