Access

Access

• TI66

  In Form1 before you call .Show() for form 2:

  frmS.Owner = this; //this could be replaced with a form instance such as myForm, this = the current object, in this case Form1

  To access the members of Form1 from within Form2

  ((Form1)this.Owner).

  
  
  

• David Pendrey

  No Problem

  using System;
  using System.Collections.Generic;
  using System.ComponentModel;
  using System.Data;
  using System.Drawing;
  using System.Text;
  using System.Windows.Forms;
  namespace Pilotta
  {

  public partial class Form1 : Form

  {

  Form2 cardform = new Form2();

  AboutBox1 about = new AboutBox1();

  public Form1()

  {

  InitializeComponent();

  }

  private void button1_Click(object sender, EventArgs e)

  {

  /* this is a special variable that always represents the current
  * object. In this case 'this' is Form1.
  *
  * so by saying cardForm.Owner = this;
  *
  * we are in effect saying cardForm.Owner = (this instance of)Form1
  */

  cardform.Owner = this; //we can now cardform.Owner to access this(Form1)

  cardform.Show();

  }

  private void button2_Click(object sender, EventArgs e)

  {

  about.Show();

  }

  }

  }

  using System;

  using System.Collections.Generic;

  using System.ComponentModel;

  using System.Data;

  using System.Drawing;

  using System.Text;

  using System.Windows.Forms;

  namespace Pilotta

  {

  public partial class Form2 : Form

  {

  public Form2()

  {

  InitializeComponent();

  }

  private void pictureBox27_Click(object sender, EventArgs e)

  {

  }

  private void button1_Click(object sender, EventArgs e)

  {

  //the owner os already showing, as the owner is Form1

  //so we do not need to show the owner here.

  //this.Owner.Show();

  Hide(); //we can call Close() which is the same as this.Close()

  //however we are going to call hide

  //Close() destoys the object so we will get errors

  //if we try and access it later, Hide simply Hides it.

  //note that Form2 is the Class name, not the object, for your purposes you

  //need to access the object. When the process is inside the object as it is now

  //you can you this. or simply just type your function, such as Close() which is the

  //the same as this.CLose()

  //

  //When you are accesing a form that is not access, you must use the variable you

  //assigned to point to its object. So Form2 myForm = new Form2();

  //makes myForm the object of Form2, in this case use myForm.(member) to control

  //the form.

  }

  }

  }

  
  
  

• sugruea

  Asked an answered. See:

  1. http://forums.microsoft.com/MSDN/ShowPost.aspx PostID=180884&SiteID=1
  2. http://forums.microsoft.com/MSDN/ShowPost.aspx PostID=89503&SiteID=1
  3. http://forums.microsoft.com/MSDN/ShowPost.aspx PostID=311023&SiteID=1
  4. etc...

  
  
  

• PiliATL

  using System;

  using System.Collections.Generic;

  using System.ComponentModel;

  using System.Data;

  using System.Drawing;

  using System.Text;

  using System.Windows.Forms;

  namespace Pilotta

  {

  public partial class Form1 : Form

  {

  //Form1 mainform = new Form1();

  Form2 cardform = new Form2();

  AboutBox1 about = new AboutBox1();

  public Form1()

  {

  InitializeComponent();

  }

  private void button1_Click(object sender, EventArgs e)

  {

  //mainform.Owner = this;

  //(form1)this.Owner.Show();

  //mainform.Hide();

  cardform.Show();

  }

  private void button2_Click(object sender, EventArgs e)

  {

  about.Show();

  }

  }

  }

• Access