ORA-26027: unique index string.string partition string initially in unusable state

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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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can a merchant exporter adjust or claim refund of input service tax ??

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what is the instrument that used in Mechanical Energy??

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How to resolve QSM-01108 error. I have no OR conditions in my query, but do have 9 IN conditions. The error says the max limit is 2 while I have 257 number of disjuncts. However, if I remove even a single IN condition, the query is rewritten. I cannot change my query. How can I resolve this issue?

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Hi can any one help me below two steps in sap FICO, 1.Create document number ranges for company code. 2.Copy document number ranges to fiscal year. was trying to do it but i am not able to completing successfully,

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hi all, I am in the process of learning qtp. i havve windows vista in my system whenever i try to run flight reservation application , i am getting the following error "Operation must use an updateable query Fractional truncation (null) . And am unable to open Mercury tours web application due to some other error Can anyone help me please

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hi, i am trying to do modular test tree in winrunner but i am getting error like "Error in the Expression list",can you please tell e what kind of error is this? thanks.

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invalid quantity specification negative quantity are not allowed for this item please check this item definition quantity

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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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RMAN-05017: no copy of datafile number found to recover

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What is live lock, deadlock and what is Lock escalation?

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How will you Handle Error in SQL SERVER 2008?

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When I look for mannual enry of any of the command in Unix, such as #man ls, I get a message "Reformatting entry. Wait..." and control comes to a next command prompt. what is the problem?

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I-series. When I use: qtp DICTIONARY(PDMZZ) AUTO (*LIBL/MFR0120X)I get the error: *E* Can't open the file specified on the AUTO program parameter. File of different type already exists. When I use it auto without *libl ,qtp DICTIONARY(PDMZZ) AUTO (MFR0120X), it works fine

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