Binding a textbox on another tabpage

Question

Hello,

I have a tabcontrol with 4 tabpages with some textboxes on each tabpage.These textboxes are binded to a datatable.All the data appears well in each textbox but when i want to access the text property of the textboxes alle the values are empty except the text propertys on tabpage 1?Why is that?

Here is some code:

public partial class Form1 : Form

{

public DataSet ds = new DataSet();

public DataTable dt = new DataTable();

public BindingSource binding1 = new BindingSource();

public Form1()

{

InitializeComponent();

toolStripProgressBar1.Maximum = 10;

toolStripProgressBar1.Minimum = 0;

toolStripProgressBar1.Value = 0;

toolStripProgressBar1.Step = 1;

try

{

string connectString = "Persist Security Info=False;User ID=gerry;Password=3600gerry;Initial Catalog=BROEKX_038951_311;Data Source=webdata99.broekx.be";

string sql = "Select * From [038951_311_PERSON_PERSON]";

using (SqlConnection connection = new SqlConnection(connectString))

{

connection.Open();

SqlDataAdapter dataAdapter1 = new SqlDataAdapter(sql, connection);

dataAdapter1.Fill(ds, "038951_311_PERSON_PERSON");

dt = ds.Tables["038951_311_PERSON_PERSON"];

binding1.DataSource = dt;

connection.Close();

}

}

catch (SqlException sqlex)

{

MessageBox.Show(sqlex.Message, "Error");

}

catch (Exception ex)

{

MessageBox.Show(ex.Message, "Error");

}

}

 

public partial class Personeel : Form

{

Form1 frm1 = (Form1)Application.OpenForms["Form1"];

public Personeel()

{

InitializeComponent();

bindingNavigator2.BindingSource = frm1.binding1;

}

private void VulTextboxen()

{

this.textBox1.DataBindings.Add(new Binding("Text", frm1.binding1, "AFKORTING", true));

this.textBox2.DataBindings.Add(new Binding("Text", frm1.binding1, "NAAM", true));

this.textBox38.DataBindings.Add(new Binding("Text", frm1.binding1, "PLAAT", true));

this.textBox49.DataBindings.Add(new Binding("Text", frm1.binding1, "BURGSTAND", true));

 

}

so textbox 1 and 2 are on tabpage 1 and have a text property but textbox 38 and 49 are on tabpage 4 and have empty text property.

Hope someone can help

greetings, gerry