problem adding another Tab event using lostfocus in form

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  12 years ago

  by prafulladawadi

  Prafulla Nath Dawadi

  , Nepal

  Joined 12 years ago

  hey this is the coding i have done to add an event at the last textbox,

  i want to reach out to the last newly created textbox so that this event can be repeated again and then i can add the last textboxes info....please help!!

   

  using System;

  using System.Collections.Generic;

  using System.ComponentModel;

  using System.Data;

  using System.Drawing;

  using System.Text;

  using System.Data.SqlClient;

  using System.Windows.Forms;

  namespace ezeeeshop

  {

  public partial class Form10 : Form

  {

  SqlConnection con = new SqlConnection(@"server=514c66c4338e42b\sqlexpress;initial catalog=new;integrated security=SSPI");public Form10()

  {

  InitializeComponent();

  }

  private void a(object sender, EventArgs e)

  {

  ComboBox c = new ComboBox();c.Location = new Point(74,327);

  c.DataSource = salesBindingSource3;

  c.DisplayMember = "product_name";

  c.Size=new Size( 197,24);

  Controls.Add(c);

  TextBox t = new TextBox();

  t.Location = new Point(302, 327);

  //t.DataSource = salesBindingSource3;

  //t.DisplayMember = "product_name";

  //t.Size = new Size(197, 24);

  Controls.Add(t);

  TextBox t1 = new TextBox();t1.Location = new Point(436, 327);

  Controls.Add(t1);

  TextBox t2 = new TextBox();

  t2.Location = new Point(566, 327);

  Controls.Add(t2);

  TextBox t3 = new TextBox();t3.Location = new Point(686, 327);

  Controls.Add(t3);

  TextBox t4 = new TextBox();

  t4.Location = new Point(814, 327);

  Controls.Add(t4);

   

  }

   

  private void Form10_Load(object sender, EventArgs e)

  {

  // TODO: This line of code loads data into the 'newDataSet2.sales' table. You can move, or remove it, as needed.

  this.salesTableAdapter1.Fill(this.newDataSet2.sales);

  // TODO: This line of code loads data into the 'newDataSet1.sales' table. You can move, or remove it, as needed.

  this.salesTableAdapter.Fill(this.newDataSet1.sales);

   

  textBox6.LostFocus += new System.EventHandler(this.a);string j = DateTime.Today.Date.ToString();

  label2.Text = j;

  }

  private void label2_Click(object sender, EventArgs e)

  {

   

  }

  private void textBox4_TextChanged(object sender, EventArgs e)

  {

  }

  private void textBox7_TextChanged(object sender, EventArgs e)

  {

  }

  private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)

  {

  con.Open();

  string s = "select * from sales where product_name='"+comboBox1.Text+"'";

  SqlDataAdapter da = new SqlDataAdapter(s, con);

  DataSet ds = new DataSet();

  da.Fill(ds,"sales");

  try

  {

  textBox2.Text = ds.Tables[0].Rows[0][1].ToString();

  textBox4.Text = ds.Tables[0].Rows[0][3].ToString();

  }

  catch

  { }

  con.Close();

  }

  private void textBox5_TextChanged(object sender, EventArgs e)

  {

  int a = int.Parse(textBox3.Text);

  int b = int.Parse(textBox4.Text);

  int c = int.Parse(textBox5.Text);int d = a * b - c;

   

  textBox6.Text = d.ToString();

  }

  private void textBox6_TextChanged(object sender, EventArgs e)

  {

  }

  private void textBox2_TextChanged(object sender, EventArgs e)

  {

  }

  }

  }

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