suppose

there are two texboxes name”tbb” and two textbox name”bb”
like below in FLP

tbb bb

above FLP a textbox name textbox1 I am trying to focusing on created control in FLP by keypress event on textbox1

as per ur suggestion I have applied like this.

 private void textBox1_KeyPress(object sender, KeyPressEventArgs e)
        {
            if ((Keys)e.KeyChar == Keys.Enter)
            {
                if (tbb != null)
                {
                    this.flowLayoutPanel1.Controls["tbb" + count.ToString()].Focus();
                }
                else
                    controlcreat();

            }
        }

it's through error like "Object Reference no set an instance to object like that.

I just want to focusing on runtime created control for modifying one by one am confused lot  help me please.

The provided solution should work if you are using it from inside your Form class, and the name of the FlowLayoutPanel is correct and the value of ‘i’ is correct.

“Controls” is a collection, member of the FlowLayoutPanel. We are not creating an instance of it.

May be i wrong but solution is important for the above problem.

Try using the FlowLayoutPanel’s controls collection instead.

am tried ur code as below.

// tb.keypressevent 

if(this.Controls["tbox"+i.tostring()].text=="")
{
textbox2.Visible=True;
textbox2.Focus();
}

but sir, it through error like “Object reference not set to an instance of an object”

How do I rectify It.

Kindly read my question carefully, my problem is how to get last index at runtime if last index control like textbox.text =”" then setfocus to another control. I don’t know how to call lastindex of runtime control in specific condition like ” if”