how to change textbox'texts are made programmatically

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hi.i made some textbox programmatically:

C#

public Form2()
{
  .
  .
   for (int j = 0; uni[j] != "end"; j++) //number of fill row till "end"
   {
                list.Add(new System.Windows.Forms.TextBox());
                list[j].Name = "ckifile" + j;
                list[j].Size = new Size(50, 20);
                list[j].Location = new System.Drawing.Point(400, loc);
                list[j].TabIndex = 2;
                list[j].KeyDown += new KeyEventHandler(txtfilenam_keydown);
                this.Controls.Add(list[j]);
   }
}

now i want when button1 is clicked,data in clipborad be paste to Textboxes.

C#

private void button1_Click(object sender, EventArgs e)
       {
           int k=0;
           Form2 frm2 = new Form2();
           string s = Clipboard.GetText();
           string[] lines = s.Split('\n');
           foreach (string line in lines)
           {
               if (k < list.Count)
               {
                  //this part is wrong
                   frm2.list[k].Text = line;???????????????
                   frm2.Controls.Add(list[k++]);?????????????
               }
               else
                   break;
           }
       }

how can i do that?
thanks

Posted 1-Jun-13 20:10pm

mit62

Updated 1-Jun-13 21:33pm

v3

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OriginalGriff · Accepted Answer · 2013-06-01T21:59:00

It depends on what type of List you have created whether it compiles or not, but if I assume it does then you can't do it like that.
The problem is that you are creating a new instance of a Form2 in your click handler:

C#

Form2 frm2 = new Form2();

And setting the value of that - this is not the same as the form your are displaying in the same way that if you put your mobile in your car glove box, then buy a new car, you would not expect to find you mobile in it's glove box!

Assuming that the button is a part of Form2, then you do not need to specify any form when accessing the list:

C#

private void button1_Click(object sender, EventArgs e)
       {
           int k=0;
           string s = Clipboard.GetText();
           string[] lines = s.Split('\n');
           foreach (string line in lines)
           {
               if (k < list.Count)
               {
                   list[k++].Text = line;
               }
               else
                   break;
           }
       }

If it isn't, then you want to keep a reference to the instance of Form2 you have already created and shown and use that - but preferably, but passing the new text to a Property or method within the form instance and letting it do the work.