textbox focus

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hi,

I created some text boxes in C# at run time.
I want to change focus of text box by typing a letter from a text box to another text box (for a crossword puzzle):

it's code for check that just enter letter
must change focus in this method?how?
my form has a combo box that this items are (horizontal,vertica,deactive). when combo box index change, direction of change text boxes change too.(down or left or right or up)

C#

private void textBox_KeyPress(object sender, KeyPressEventArgs e)
       {
           // Allows only letters
           if (!(Char.IsLetter(e.KeyChar) || Char.IsControl(e.KeyChar)))
           {
                   e.Handled = true;

           }
       }

in this part create text boxes

C#

public void CreateTb()
        {
            for (i = 0; i < 15; i++)
            {
                for (j = 0; j < 15; j++)
                {
                    CrossTb = new TextBox();
                    TbTemp[i, j] = CrossTb;
                    CrossTb.Multiline = true;
                    CrossTb.Size = new Size(w, h);
                    CrossTb.MaxLength = 1;
                    CrossTb.TextAlign = HorizontalAlignment.Center;
                    CrossTb.BackColor = Color.White;
                    CrossTb.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D;
                    CrossTb.Location = new Point((i + fx) * w, (j + fy) * h);
                    this.Controls.Add(CrossTb);
TbTemp[i, j].KeyPress += new KeyPressEventHandler(textBox_KeyPress);
                }
                //TbTemp[10, 10].ForeColor = Color.Black;
                CreatePanel();
            }

It's my code to create textboxes.
where i must check key for go to another text box and how?
whenever that i test doesn't true :(

Thanks a lot for your help :)

Posted 31-May-10 4:53am

dream_land

Updated 31-May-10 8:58am

v3

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OriginalGriff · Answer 1 · 2010-05-31T05:22:00

Add a handler for the TextBox KeyPress event.
Decide which text box is next to receive the keystroke and use the Focus() method.
For example, if there were two boxes only:

private void textBox1_KeyPress(object sender, KeyPressEventArgs e)
    {
    textBox2.Focus();
    }

private void textBox2_KeyPress(object sender, KeyPressEventArgs e)
    {
    textBox1.Focus();
    }

You will want a more generic method, but that is over to you - next right or down will depend on how you are organising your software.

Abhinav S · Answer 2 · 2010-05-31T18:42:00

Solution 2

You can call tab event through code to move focus from one textbox to the other.

Posted 31-May-10 18:42pm

Abhinav S