Winform ControlCollection Extensions

I have written a few extensions to Control.ControlCollection class for Winforms.

These extensions are lambda expression wrappers and other useful API.

You can also write LINQ queries against the ControlCollection using an extension.

Extensions :

using System; using System.Collections.Generic; using System.Windows.Forms; namespace System.Windows.Forms {    public static class ControlCollectionExtensions    {       public static void ForEach(this Control.ControlCollection ControlCollection, Action<Control> Action)       {          for (int i = 0; i < ControlCollection.Count; i++)          {             Action.Invoke(ControlCollection[i]);          }          }       public static void For(this Control.ControlCollection ControlCollection, int Start, int End, int Step, Action<Control> Action)       {          for (int i = Start; i < End; i++)          {             Action.Invoke(ControlCollection[i]);          }          }       public static void For(this Control.ControlCollection ControlCollection, int Start, Func<int, bool> End, int Step, Action<Control> Action)       {          for (int i = Start; End.Invoke(i); i++)          {             Action.Invoke(ControlCollection[i]);          }       }       public static List<Control> Where(this Control.ControlCollection ControlCollection, Func<Control, bool> Condition, bool SearchAllChildren)       {          List<Control> lstControls = new List<Control>();          ControlCollection.ForEach(ctrl =>          {             if (SearchAllChildren)             {                lstControls.AddRange(ctrl.Controls.Where(Condition, true));             }             if (Condition.Invoke(ctrl))                lstControls.Add(ctrl);          });          return lstControls;       }       public static List<Control> FindControlsByType(this Control.ControlCollection ControlCollection, Type Type, bool SearchAllChildren)       {          List<Control> lstControls = new List<Control>();          ControlCollection.ForEach(ctrl =>          {             if (SearchAllChildren)             {                lstControls.AddRange(ctrl.Controls.FindControlsByType(Type, true));             }             if (ctrl.GetType() == Type)                lstControls.Add(ctrl);          });          return lstControls;       }       public static List<Control> ToList(this Control.ControlCollection ControlCollection, bool IncludeChildren)       {          List<Control> lstControls = new List<Control>();          ControlCollection.ForEach(ctrl =>          {             if (IncludeChildren)                lstControls.AddRange(ctrl.Controls.ToList(true));             lstControls.Add(ctrl);          });          return lstControls;       }    } }

Sample Usage :

//Find control of type RichTextBox List<Control> lstControls = this.Controls.FindControlsByType(typeof(RichTextBox), true); //Where control Name is rtbScratchPad List<Control> lstControls1 = this.Controls.Where(ctrl => ctrl.Name == "rtbScratchPad", true); //For each control in the collection this.Controls.ForEach(ctrl => MessageBox.Show(ctrl.Name)); //For every second control in the collection this.Controls.For(0, this.Controls.Count - 1, 2, ctrl => MessageBox.Show(ctrl.Name)); //LINQ query on ControlCollection using ToList() extension Control c = (from ctrl in this.Controls.ToList(true)             where ctrl.Name == "rtbScratchPad"             select ctrl).Single();