/// <summary>
        /// This method is used for closing all the child form
        /// </summary>
        /// <param name="formNumber"></param>
        private void CloseAllChildForm(int formNumber)
        {
            foreach (Form frm in this.MdiChildren)
            {
                frm.Dispose();
                frm.Close();
            }
            switch (formNumber)
            {
            case 1:
                FormDetail.OpenWelcomeForm();
                break;

            case 2:
                FormDetail.OpenCustomerShortCodeForm();
                break;

            case 3:
                FormDetail.OpenUserDetailsForm();
                break;

            case 4:
                FormDetail.OpenSyncOptionForm();
                break;

            case 5:
                FormDetail.OpenLDAPPathForm();
                break;

            case 6:
                FormDetail.OpenCustomerEmailForm();
                break;

            case 7:
                FormDetail.OpenInstallationPathForm();
                break;

            case 8:
                FormDetail.OpenInstallForm();
                break;
            }
            if (formNumber == 1)
            {
                btnBack.Enabled = false;
            }
            else
            {
                btnBack.Enabled = true;
            }

            if (formNumber == 8)
            {
                btnNext.Text = Common.GetResourceKeyValue("CommonInstall");
            }
            else
            {
                btnNext.Text = Common.GetResourceKeyValue("CommonNext");
            }
        }
        /// <summary>
        /// Back button click event
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btnBack_Click(object sender, EventArgs e)
        {
            //Disabling the back button if it is a start form
            if (GlobalData.BackFormName == "StartForm")
            {
                btnBack.Enabled = false;
            }
            else
            {
                btnBack.Enabled = true;
            }

            btnNext.Text = Common.GetResourceKeyValue("CommonNext");

            if (!string.IsNullOrEmpty(GlobalData.BackFormName))
            {
                //loading the appropriate form based on the form name
                switch (GlobalData.BackFormName)
                {
                case "StartForm":
                    if (Common.GetPreviousAppSettings() != null)
                    {
                        ((Install)this.MdiChildren[0]).Close();
                    }
                    else
                    {
                        ((CustomerValidation)this.MdiChildren[0]).Close();
                    }
                    FormDetail.OpenWelcomeForm();
                    break;

                case "CustomerValidation":
                    ((UserDetails)this.MdiChildren[0]).Close();
                    FormDetail.OpenCustomerShortCodeForm();
                    break;

                case "UserDetails":
                    ((SyncOption)this.MdiChildren[0]).Close();
                    FormDetail.OpenUserDetailsForm();
                    break;

                case "SyncOption":
                    ((LDAPPath)this.MdiChildren[0]).Close();
                    FormDetail.OpenSyncOptionForm();
                    break;

                case "LDAPPath":
                    ((CustomerEmail)this.MdiChildren[0]).Close();
                    FormDetail.OpenLDAPPathForm();
                    break;

                case "CustomerEmail":
                    ((InstallationPath)this.MdiChildren[0]).Close();
                    FormDetail.OpenCustomerEmailForm();
                    break;

                case "InstallationPath":
                    ((Install)this.MdiChildren[0]).Close();
                    FormDetail.OpenInstallationPathForm();
                    break;

                case "Install":
                    FormDetail.OpenInstallForm();
                    break;
                }
            }
        }