change Text of several labels located on a Tab control using loop in C#

Question

I have a windows form project ( Net 4) in C#, and I want to change all of my label.Texts in a loop. but my labels are in a Tabcontrol (in tabpage 4) and i don't know what to do. my labels name are label1 label2 and so.. until label 100.

Answer 1

You could use something like this to loop through the controls and set the label text based on the number in the name.

foreach ( Control ctrl in tabPage4.Controls )
{
  if ( ctrl.GetType().Equals(typeof(Label)) )
  {
    string strName = ctrl.Name;
    if ( strName.StartsWith("label", StringComparison.InvariantCultureIgnoreCase) )
    {
      string strNum = strName.Substring(5);
      int iIndex;
      if ( int.TryParse(strNum, out iIndex) )
      {
        ctrl.Text = "your text";
      }
    }
  }
}