Radiobutton.Checked = false; But it has to be true???

Question

Hi,

I created several RadioButtons that have a if(RadioButton.Checked == true) part but now
I wanted to create them dynamicly.
So I createt them in like this:

 for (int i = 0; i < 6; i++)
            {
                radioaddons[i] = new RadioButton();
                radioaddons[i].AutoSize = true;
                radioaddons[i].Name = "radioaddon," + i;
                radioaddons[i].Size = new System.Drawing.Size(50, 17);
                radioaddons[i].TabIndex = 10;
                radioaddons[i].Text = "" + arrayadd[i, 0];
                radioaddons[i].UseVisualStyleBackColor = true;
                groupzustand.Controls.Add(radioaddons[i]);
                radioaddons[i].Location = new System.Drawing.Point(radioaddons[i-1].Location.X + radioaddons[i-1].Width + 5, 13);
                radioaddons[i].CheckedChanged += new System.EventHandler(this.radioaddon_CheckedChanged);
            }

The RadioButtons are visible but when I try to find out which button was press with

 private void radioaddon_CheckedChanged(object sender, EventArgs e)
        {
            int index = 0;
            for (int i = 0; i < 6; i++)
            {
                if (sender.Equals(radioaddons[i]))
                {
                    index= i;
                    this.Text = "Hello";
                }
            }
}

The index changed never ever QQ Why??
The sender has the attribut checked true but when I take a look at the right button (lets say at index 5) it says checked = false

I read something about GroupName but in C# there isn't any...


Solution... :

                 if (((RadioButton)sender).Text == radioaddons[i].Text)
                {
                    index = i;
                    this.Text = "hello";
                }

After frustration I simply tried the Text comparison.
Not good but it works. But I really dunno why the Checked and even the Tag attribut didn't work.
So solved!