Method to reset members inside groupBox

Question

is there any method for groupBox to clear all properties of objects inside groupBox. for example clear all textboxes, deselect all checkboxes etc. and set them to default. o

Answer 1

You would have to make a function like this:

private void ClearControls(Control control)
{
    var textbox = control as TextBox;
    if (textbox != null)
        textbox.Text = string.Empty;

    var dropDownList = control as DropDownList;
    if (dropDownList != null)
        dropDownList.SelectedIndex = 0;

    // And add any other controls
    // ...

    foreach( Control childControl in control.Controls )
    {
        ClearControl( childControl );
    }
}

Just call it like this:

ClearControls(this);

This will work recursively, so if you have any panels, for example, with their own set of controls to clear, this will clear those too.

Answer 2

You would need to clear all the controls inside the group box one by one.

Answer 3

The fastest way to do that is :

Control myForm = Page.FindControl("Form1");
foreach (Control ctrl in myForm.Controls)
{
    //Clears TextBox
    if (ctrl is System.Web.UI.WebControls.TextBox)
    {
        (ctrl as TextBox).Text = "";
    }
    //Clears DropDown Selection
    if (ctrl is System.Web.UI.WebControls.DropDownList)
    {
         (ctrl as DropDownList).ClearSelection();
    }
    //Clears ListBox Selection
    if (ctrl is System.Web.UI.WebControls.ListBox)
    {
        (ctrl as ListBox).ClearSelection();
    }
    //Clears CheckBox Selection
    if (ctrl is System.Web.UI.WebControls.CheckBox)
    {
        (ctrl as CheckBox).Checked = false;
    }
    //Clears RadioButton Selection
    if (ctrl is System.Web.UI.WebControls.RadioButtonList)
    {
        (ctrl as RadioButtonList).ClearSelection();
    }
    //Clears CheckBox Selection
    if (ctrl is System.Web.UI.WebControls.CheckBoxList)
    {
        (ctrl as CheckBoxList).ClearSelection();
    }
}