C # Skillfully control controls with a foreach statement

The foreach statement is used to iterate over each item in the collection, and its syntax is as follows:

foreach (type identifier in expression)

In this example, using a foreach statement to empty the text value of all the textbox on the current form, you can also use a foreach statement to control the same set of controls in the same container, which greatly increases the efficiency of the program's personnel. The code is as follows:

private void Cleartext ()
        {
            foreach (Control cont in This.gbLogin.Controls)
            {
                if (cont. GetType (). ToString () = = "System.Windows.Forms.TextBox")
                {
                    Cont. Text = string. Empty;
                }
            }
        }