Textbox array does not update in a User Control

Question

Hello everyone,

 

I am attempting to build a User Control with a collection of TextBoxes. The idea is to be able to display a collection of information.

 

I can get a single Textbox to update, but I just can't get an array to do the same thing.

 

The function _aTextBox() is called from 2 buttons on my main program as follows:

private void button1_Click(object sender, EventArgs e)
{
ucTextBox1._aTextBox("Hello",0);
}
private void button2_Click(object sender, EventArgs e)
{
ucTextBox1._aTextBox("World",1);
}

Any and all suggestions welcomed . Many thanks for your time reading this.

 

My User Control code is below:

 

At the line marked with // *********************, txt[0].Text holds the correct string. However, it never displays it!!!

namespace ucTextBox
{
public partial class ucTextBox: UserControl
{
public ucTextBox()
{
InitializeComponent();
}
TextBox[] txt = new TextBox[2];
private void DisplayTextBoxes()
{
txt[0] = new TextBox();
txt[0].Location = new System.Drawing.Point(20, 48);
this.Controls.Add(txt[0]);
}
public void _aTextBox(string text)
{
DisplayTextBoxes();
txt[0].Visible = false;
txt[0].Text = text; // *********************
txt[0].Visible = true;
txt[0].Invalidate();
txt[0].Update();
txtValue.Visible = true;
txtValue.Text = text;
txt[0].ResumeLayout(true);
}
}
}