I have two queries in first query i have to show all values,in second query i have to show 3 values and want to hide 3 values what prompt ur going to use, why that prompt

2292

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difference between crane drive and line drive.

1924

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can anyone explain 11kV 3core cable megger,hi pot test procedure with connection details?

3290

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Hii can you help me step by step procedure for transfering data in textfields into sql database .mdf(also help me how to create database .mdf file) file after creating submit button in asp.net/ c#?????

2141

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please tel me Karnataka vat,sale tax deposit from and return from

2427

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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(); } } }

2665

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What is the function of RCBO? What are the different sensitivity ratings & each application?

2832

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I am Undergraduate is it possible to travel USA ?

3984

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WHAT IS THE ACTUAL DEFINATION OF PLANET?

3823

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How much permissible bearing capacity requires for open footings(isolated) and what type pile foundatuon prefering for coastal areas?

1998

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how can i prevent the backfire occurrence in copper shaft furnaces?

2468

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Q1. Why did you enter the field of chemistry? Q2. What has motivated you to take chemistry as your professional subject and have you motivated anyone towards your field?

2308

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write a programming in c to find the sum of all elements in an array through function.

2191

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I have made a 3 phase thyristor full bridge rectifier. But at the moment it is working only for the half bridge operation. Both the half bridges are on operation separately but when i put it into full bridge operation the oscilloscope output is zero. I rechecked that the pulses are correct for each thyristor. what could be the possible reason for this?

1988

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What would cause a 240v choke that should give 110v out on a 16w lamp to gradually increase to 160v?

2169

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