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I faced a problem in adding a close button to TabPages for RightToLeft TabControl, i found the solution in this video and i want to share it with you [Click Here](https://www.youtube.com/watch?v=Oa7sBOeOHoA)

hi, i'm using crystal report and my question is how to create a crystal report which displays fields from 2 tables. i tried this code but nothing displays in the report [CODE] SqlCeConnection con = new SqlCeConnection(); con.ConnectionString = @" Data source= |DataDirectory|\Database1.sdf"; con.Open(); Database1DataSet ds = new Database1DataSet(); SqlCeParameter …

hi, i'm using visual csharp 2008 express edition which doesn't contain the Report viewer control. i downloaded Microsoft Report Viewer Redistributable 2008, i install it and i try to add it to the toolbar by clicking on( Tools/ choose toolbox items) but i can't find it in the list of …

hi, i use this code to create a crystal report [CODE] CrystalReport2 cr2 = new CrystalReport2(); Database1DataSet ds1 = new Database1DataSet(); SqlCeDataAdapter da = new SqlCeDataAdapter(selectquery, con); da.Fill(ds1, datatablename); crystalReportViewer1.ReportSource = cr2; [/CODE] the problem is that this code displays just the first record from the records that should be …

hi, how to restrict the text box input to allow user to write only Arabic letters, without english letters or numbers or ponctuation symbols. i searched on the net and i tried this code but it does't do what i want [CODE] private void nomTextBox_KeyPress(object sender, KeyPressEventArgs e) { if …

hi, i work on a windows application and i use crystal report. i use this code to generate report from database: [CODE] private void imprimerB3button_Click(object sender, EventArgs e) { SqlCeConnection con = new SqlCeConnection(); con.ConnectionString = @" Data source= |Datadirectory|\Database1.sdf"; Database1DataSet ds = new Database1DataSet(); SqlCeParameter paramNom = new SqlCeParameter("@nom", …

hi, i'm working on a windows application with sql server compact edition3.5 database. i was working with visual csharp 2008 express and now i have installed visual studio 2008 professional edition. the problem is that i can't open my database to see tables, i get this error message" the operation …

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hi, i work on a windows application and i have a principal form which show another form in its load event: [CODE] private void FormPrincipal_Load(object sender, EventArgs e) { FormR fp = new FormR(); fp.Show(); } [/CODE] the form FormR contain this code in its load event: [CODE] private void …

hi, i work on windows application and i have this code: [CODE] SqlCeDataReader rrs; SqlCeCommand comd = new SqlCeCommand("select CodePersonne from Table1 where DateR ='" + DateTime.Now.Date + "';", conne); rrs = comd.ExecuteReader(); [/CODE] while running, i get this error: The data type is not valid for the boolean operation. …

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hi, i have this code which do search in Table1 and use the result of search to search in another datatable Table2: [CODE] SqlCeConnection conne = new SqlCeConnection(); conne.ConnectionString = @" Data source= |DataDirectory|\Database1.sdf"; conne.Open(); SqlCeDataReader rrs; SqlCeCommand comd = new SqlCeCommand("select CodePersonne from Table1 where DateRP ='" + DateTime.Now.Date …

hi, i work on windows application. i have the first form of the authentification ( with username and password) after that i have the principal form. in the load event of this principal form i put a code that shows another form. my problem is that i delete this code …

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hi, i work on a widows application sql server ce database and i want to know how to add the rows of a datagridview to a datatable. thanks

hi, i work on windows application and i want to know how to use the components (textboxes,..) of a winform in another winform. thanks

hi, i work on a csharp application with sql server ce database and i have this code: [CODE] private void recherchebtn_Click(object sender, EventArgs e) { SqlCeConnection con = new SqlCeConnection(); con.ConnectionString = @" Data source= `|DataDirectory|\Database1.sdf"; try { con.Open(); } catch (Exception ex) { MessageBox.Show("connection failed"); } finally { SqlCeDataReader …

hi, i'm working on windows application and sql serverCE database i write this code: [CODE] private void enregistrerBtn_Click(object sender, EventArgs e) { if (!exist) { SqlCeConnection conn = new SqlCeConnection(); conn.ConnectionString = @" Data source= |DataDirectory|\Database1.sdf"; try { conn.Open(); } catch (Exception ex) { MessageBox.Show(" connexion failure"); } finally { …

hi, i'm working on a windows application with database sqlserverCE and my question is how connect to the database without writing where it locates in the connectionstring ( i mean auto connection ). i hope you can help me. thanks.

hi all, my question is what are the stop conditions of the ant colony system algorithm. i hope you can help me.

hi everybody, i want to download this ebooks: - Data mining:concepts and techniques, authors:Jiawei Han, Micheline Kamber, and the second book: - Ant colony system please help me if you can

hello everybody, this is my first post in this forum and i hope to find help. i'm beginner in c# and i search for simple tutorials in databases access in c#.