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I'm sure I can't be the only person to need this so here is a function I couldn't find :-

private Control FindControl(string strControlName)
{
    if (String.IsNullOrEmpty(strControlName) || this.Controls.Find(strControlName, true).Length == 0)
        return null;

    return this.Controls.Find(strControlName, true)[0];
}

Usage :-

for (int p = 0; p < CurrentMap.Depth_Tiles; p++)
{
    string strOutput = String.Format("CheckBox Controle cbShowLayer{0} - ", p);

    if (((CheckBox)FindControl("cbShowLayer" + p.ToString())).Checked == true)
        MessageBox.Show(strOutput + "checked");
    else
        MessageBox.Show(strOutput + "not checked");
}

If anyone has a better solution let me know :-)

Labels: Home, Windows forms