private void bt删除_Click(object sender, EventArgs e)
 {
     try
     {
         if (MessageBox.Show("确定删除吗?", "提示", MessageBoxButtons.YesNo) == DialogResult.No)
         {
             return;
         }
         else
         {
             DataRow        dr            = gridView1.GetDataRow(gridView1.FocusedRowHandle);
             Table_Supplier deleteneirong = db.Table_Supplier.Find(dr["CompanyID"].ToString());
             db.Table_Supplier.Remove(deleteneirong);
             db.SaveChanges();
             fillToolStripButton_Click(sender, e);
             MessageBox.Show("删除成功!");
             fillToolStripButton_Click(sender, e);
         }
         bt保存.Enabled   = true;
         bt修改.Enabled   = false;
         text供应商编号.Text = "";
     }
     catch (Exception ex)
     {
         MessageBox.Show("删除失败!\n" + ex.Message);
     }
 }
        private void bt保存_Click(object sender, EventArgs e)
        {
            bool ISuesd = true;

            if (check启用.Checked == false)
            {
                ISuesd = false;
            }
            if (IsNotNULL())
            {
                try
                {
                    Table_Supplier suppllier = new Table_Supplier();
                    suppllier.CompanyAddress  = text公司地址.Text;
                    suppllier.CompanyDirector = tex联系人名称.Text;
                    suppllier.CompanyID       = text供应商编号.Text;
                    suppllier.CompanyName     = text供应商名称.Text;
                    suppllier.CompanyPhone    = text用户电话框.Text;
                    suppllier.CompanyReMark   = memoEdit备注.Text;
                    suppllier.InDateTime      = DateTime.Parse(dateEdit加入日期.Text);
                    suppllier.IsUsed          = ISuesd;
                    db.Table_Supplier.Add(suppllier);
                    db.SaveChanges();
                    MessageBox.Show("供货商录入成功!", "提示");
                    fillToolStripButton_Click(sender, e);
                    clear();
                }
                catch (Exception ex)
                {
                    MessageBox.Show(ex.Message, "踏雪温馨提示");
                }
            }
        }