MemberManagement/FrmConsumption.cs

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using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace MemberManagement
{
    public partial class FrmConsumption : Form
    {
        private member Member;
        private bool IsSave = false;

        public FrmConsumption()
        {
            InitializeComponent();
        }


        private void FrmRecharge_Load(object sender, EventArgs e)
        {
            this.txtCard1.Focus();
            this.GetParam();
            this.chbAutoDeduct.Checked = true;
        }

        private bool GetParam()
        {
            try
            {
                using (var db = new MemberManagementEntities())
                {
                    var param = db.parameter.FirstOrDefault(o => o.paramName == "amount");
                    if (param == null)
                    {
                        MessageBox.Show("请先配置扣费金额。参数名：amount", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
                        this.chbAutoDeduct.Visible = false;
                        this.btnSave.Visible = false;
                    }
                    else
                    {
                        this.nudAmount.Value = int.Parse(param.paramValue);
                    }
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message, "操作数据失败", MessageBoxButtons.OK, MessageBoxIcon.Error);
                return false;
            }
            return true;
        }
        private void btnSave_Click(object sender, EventArgs e)
        {
            if (this.IsSave)
            {