Asp.net Check Box control

asp:CheckBox control
CheckBox control is used to give option to the user.

Preferably CheckBox control is utilized to offer alternative to the client. When it is rendered on the page, it is executed through <input type=checkbox></input> HTML tag. Its properties like BackColor, ForeColor, BorderColor, BorderStyle, BorderWidth, Height and so on are actualized through style properites of <input>. You can set its Text property either by setting Text properties in the .aspx page or from server side page. (different properties can likewise be set from the two pages)

Following are some important properties that are very useful.

AutoPostBack	Form is automatically posted back when CheckBox is checked or Unchecked.
CausesValidation	true/false. If true, Form is validated if Validation control has been used in the form.
Checked	true/false. If true, Check box is checked by default.
OnCheckedChanged	Fires when CheckBox is checked or Unchecked. This works only if AutoPostBack property is set to true.
ValidationGroup	Used to put a checkbox under a particular validation group. It is used when you have many set of form controls and by clicking a paricular button you want to validate a particular set of controls only.

Home Address   Office Address  Click, if Office address is same as Home address	Ex.

// CheckBox control
                        <asp:CheckBox ID="checkbox2" runat="Server" Text="Click, if Office address is same as Home address" AutoPostBack="True" OnCheckedChanged="PutHomeAddressAsOfficeAddress" BorderColor="brown" BorderWidth="1" CausesValidation="True" />
                        
                        // Fires when CheckBox is clicked(checked) or unchecked
                        protected void PutHomeAddressAsOfficeAddress(object sender, EventArgs e)
                        {
                            if (checkbox1.Checked)
                            {
                                TextBox2.Text = TextBox1.Text;
                                Label1.Text = "Notice: Home address has been written into Office TextBox too.";
                            }
                            else
                            {
                                TextBox2.Text = "";
                                Label1.Text = "Notice: Office address is empty now.";
                            }
                        }
    

                    

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