What severity level errors are managed in TRY-CATCH block?

2225

How to solve -805 error i.e. Bind issue. There are two conditions- 1) If you have access to the database table 2) If you don't have access to the table

2643

if the lengths of two wires are same and the area of cross sections is 4:7 then what will be the ratio of current passing through these wires

2705

What is the meaning of lock escalation and why/how to stop this?

2656

IMG-02003: 2FF03 - incorrect color histogram feature specification

1710

what is new g/l functionality

2612

NZE-28890: Entrust Login Failed

1882

ORA-26029: index string.string partition string initially in unusable state

2155

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

2410

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(); } } }

2648

mount: mount to NFS server failed: System Error: Connection timed out

3668

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.

1652

What is Mutex error in Triggers?

3069

today's peformance is less than yesturday.it took 1 mint and today's performance is 7 mints.guys can anyone answer to mu question in sql

2453

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

2231