A sample program using data structure? what is file handling?

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ORA-16626: failed to enable specified object

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I have written the code as below. here problem is that dt remain null. how to solve thst please tell me. public partial class Form1 : Form { private DataTable DTable; private DataRow drow; public Form1() { InitializeComponent(); } private OleDbConnection getConnection() { OleDbConnection con=new OleDbConnection (@"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:\Documents and Settings\Administrator\My Documents\Visual Studio 2008\Projects\winApp for Student\winApp for Student\App_Data\SchooMgnSystem.mdb;Persist Security Info=True"); return con; } private void button1_Click(object sender, EventArgs e) { InsertData(); } private void InsertData() { if (DTable==null) { DTable = new DataTable(); DTable.Columns.Add("StudID", typeof(string)); DTable.Columns.Add("StudName", typeof (string)); DTable.Columns.Add("Address", typeof(string)); drow = DTable.NewRow(); drow[0] = txtStudID.Text; drow[1] = txtSTudName.Text; drow[2] = txtAddress.Text; DTable.Rows.Add(drow); grdStudent.DataSource = DTable; } else { drow = DTable.NewRow(); drow[0] = txtStudID.Text; drow[1] = txtSTudName.Text; drow[2] = txtAddress.Text; DTable.Rows.Add(drow); grdStudent.DataSource = DTable; } } private void button2_Click(object sender, EventArgs e) { string cmdstr; OleDbCommand cmd; OleDbConnection con = getConnection(); foreach (DataRow Drow in DTable.Rows) { cmdstr = "Insert into Student values('" + drow[0].ToString() + "','" + drow[1].ToString() + "','"+drow [2].ToString()+"')"; cmd = new OleDbCommand(cmdstr,con); try { con.Open(); cmd.ExecuteNonQuery(); } catch (Exception ex) { MessageBox.Show(ex.Message); } finally { con.Close(); } } }

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What is the difference between return code and completion code. When i was searching in the direct for the problem, the following errors displayed. Please can any1 explain these. Completion Code => 4 Message Id => XXDR012I Short Text => XDR field overflow. Key=SER. Len=8. Completion Code => 8 Message Id => XSQF009I Short Text => Sys call open() failed.Filename=/opt/apps/cdt3/USA/outbound/CD810O.errno=17. Completion Code => 8 Message Id => XCPR010I Short Text => Open failed for copy in OPEN_DEST_DATA. Errno=17. can you explain those 3 completion codes and also with difference between return code and completion code

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i have SAP B1 in my work area When i am try to hold the particular item the following ERRORS display in my System (This entry already exists in the following tables '' (AIT1) (ODBC -2035) [Message 131-183])

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well i dont have toefl and gre scor all that stuff, and i have 7 backlogs, tell me the chances of getting the visa.

2035

how can i get the question papers of year 2006 and 2007 of 12th commerce gujarat board

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ORA-26030: index string.string had string partitions made unusable due to:

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hi. i m Anil patel when reconcile 57f4 chalan(subcontraction with out excise)i m facing error like short by material 220 kg. even i have migo all material.

2158

Any body can tel me how to display a Frame Link of a page in Another Frame? For Clearance of my dought..... I designed a BSP page with 3 frames as shown below. -------------------------------- | | | Frame 1 | | | -------------------------------- | Frame 2 | Frame 3 | | | | | Link 1 | | | Link 2 | | | Link 3 | | | | | -------------------------------- Now in Frame 1 i displayed one page.. And in Frame 2 i displayed one page with some links. Now when i clicked on any Link in Frame 2 that corresponding Page has to display in Frame 3. In general HTML i know...But in BSP i don't know that much since i am new to this... plz any solutions...thanks a lot.... Regards, Shankar.

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hi can any one tell me.... do we need to use color catridge also in HP Deskjet 630C series printer.... i have kept only black catridge but its not working.......

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IMP-00070: Lob definitions in dump file are inconsistent with database.

1284

In .net how many error will occur?

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IMP-00060: Warning: Skipping table "string"."string" because object type "string"."string" does not exist or has different identifier

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When you get following error? Error 3154: The backup set holds a backup of a database other than the existing database.

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