WHAT IS A VECTOR ? HOW IS DIFFER FORM AN ARRAY

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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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I am Recording the QTP Script..the Script is below VbWindow("mdiPP").VbWindow("frmPOSOLocking").ActiveX ("SSTab").VbListView("lstPO").SetItemState "272 [10-11]", micChecked. After when when Run then give error property not found.

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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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when i ran any workflow or session, getting below error: seesion task instance[s_xxx]: Execution terminated unexpecterdly

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ORA-26084: direct path context already finished

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IMP-00096: Warning: Skipping table "string"."string" because type synonym "string"."string" cannot be created

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

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How can be avoid the Error while being Human we do mistakes???

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I entered the data in SQL toad version 9.0.1 in English and Arabic language but when i do the query i get the data in Arabic language with (??? question mark) ,please your support.

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hi pp gurus, when i do the goods receipt through transiction MIGO the system, gives following error. I filled up all information that needs MIGO transiction. the error is: "Account determination for entry INT GBB___AUF 7900 not possible." can any one suggest me what to do now?

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How to create a program that lists countries capitals when country is entered? (Terribly sorry, I'm a complete novist to coding with C, am looking for inspiration and general tips on how to code and create this program.)

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ORA-26079: file "string" is not part of table string.string

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I would like to if there is any vb script to populate my values in the application.Example i will input the data in two 2 rows a & b.I need script where the data in a or b have to populate in my application if my a = nothing and b = 1 or a = 1 or b = nothing.I would be glab if someone can help me here.

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In .net how many error will occur?

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