Question

hello
In my Form I had used multiple container such as panel,group box.and as per my requirement i have to clear all the controls which are reside in container. For this i have wrote a code as follows:-

foreach (Control  x in ControlContainer.Controls)//Error
{
    if (x is System.Windows.Forms.TextBox)
        ((TextBox)x).Text  = String.Empty;

    else  (x is System.Windows.Forms.ComboBox)
    {
        ((ComboBox)x).SelectedIndex = -1;
        ((TextBox)x).Text = String.Empty;
    }
}

But its not working properly, i’m receiving error like:’object’ does not contain a definition for ‘Controls’

please help

Answer 1

Somewhat recursive example from ASP.NET Forums:

public static void ClearTxtBox(Control control)
{
    foreach (Control ctrl in control.Controls)
    {
        if (ctrl is TextBox)
            (TextBox)ctrl.Text = "";
         if (ctrl.HasControls())   
             ClearTxtBox(ctrl);
    }
}

I don’t think the ControlContainer returns the controls in the way you think.