MemberManagement/FrmUpdateMember.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 FrmUpdateMember : Form
    {
        private member Member;

        public FrmUpdateMember()
        {
            InitializeComponent();
        }

        private void FrmRecharge_Load(object sender, EventArgs e)
        {
            this.txtCard1.Focus();
        }

        private void btnSave_Click(object sender, EventArgs e)
        {
            ((Button)sender).Enabled = false;
            if (this.UpdateMember())
            {
                MessageBox.Show("会员信息修改成功", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
                this.GetMember(this.txtCard1.Text.Trim());
            }
            ((Button)sender).Enabled = true;
        }

        private bool UpdateMember()
        {
            try
            {
                using (var db = new MemberManagementEntities())
                {
                    var m = db.member.FirstOrDefault(o => o.cardNumber == this.txtCard1.Text.Trim());
                    m.recordNumber = this.txtCard2.Text.Trim();
                    m.memberName = this.txtName.Text.Trim();
                    m.identityCard = this.txtIdCard.Text.Trim();
                    m.mobile = this.txtPhone.Text.Trim();
                    db.SaveChanges();
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message, "操作数据失败", MessageBoxButtons.OK, MessageBoxIcon.Error);
                return false;
            }
            return true;
        }

        private void txtCard1_TextChanged(object sender, EventArgs e)