private double total = 0.0d;//用于总计 private void btnOk_Click(object sender, EventArgs e) { CashContext cc = null; switch (cbxType.SelectedItem.ToString()) { case "正常收费": cc = new CashContext(new CashNormal()); break; case "满300返100": cc = new CashContext(new CashReturn("300", "100")); break; case "打8折": cc = new CashContext(new CashRebate("0.8")); break; } var totalPrices = cc.GetResult(Convert.ToDouble(txtPrice.Text) * Convert.ToDouble(txtNum.Text)); total = total + totalPrices; lbxList.Items.Add("单价:" + txtPrice.Text + " 数量:" + txtNum.Text + " " + cbxType.SelectedItem + " 合计:" + totalPrices); lblResult.Text = total.ToString(); }
private void btnOk_Click(object sender, EventArgs e) { //利用简单工厂模式根据下拉选择框,生成相应的对象 CashContext csuper = new CashContext(cbxType.SelectedItem.ToString()); //通过多态,可以得到收取费用的结果 var totalPrices = csuper.GetResult(Convert.ToDouble(txtPrice.Text) * Convert.ToDouble(txtNum.Text)); total = total + totalPrices; lbxList.Items.Add("单价:" + txtPrice.Text + " 数量:" + txtNum.Text + " " + cbxType.SelectedItem + " 合计:" + totalPrices); lblResult.Text = total.ToString(); }
private void btnOk_Click(object sender, EventArgs e) { CashContext ccontext = new CashContext(cbxType.SelectedItem.ToString()); double totalPrices = 0.0d; totalPrices = ccontext.GetResult(Convert.ToDouble(txt_Price.Text) * Convert.ToDouble(txt_Num.Text)); total = total + totalPrices; lbxList.Items.Add("单价:" + txt_Price.Text + " 数量: " + txt_Num.Text + " 合计:" + totalPrices.ToString()); lblResult.Text = total.ToString(); }
private void btnOk_Click(object sender, EventArgs e) { //利用简单工厂模式根据下拉选择框,生成相应的对象 CashContext csuper = new CashContext(cbxType.SelectedItem.ToString()); double totalPrices = 0d; //通过多态,可以得到收取费用的结果 totalPrices = csuper.GetResult(Convert.ToDouble(txtPrice.Text) * Convert.ToDouble(txtNum.Text)); total = total + totalPrices; lbxList.Items.Add("单价:" + txtPrice.Text + " 数量:" + txtNum.Text + " " + cbxType.SelectedItem + " 合计:" + totalPrices.ToString()); lblResult.Text = total.ToString(); }
private void btnOk_Click(object sender, EventArgs e) { CashContext cc = new CashContext(); //根据用户的选项,查询用户选择项的相关行 DataRow dr = ((DataRow[])ds.Tables[0].Select("name='" + cbxType.SelectedItem.ToString()+"'"))[0]; //声明一个参数的对象数组 object[] args =null; //若有参数,则将其分割成字符串数组,用于实例化时所用的参数 if (dr["para"].ToString() != "") args = dr["para"].ToString().Split(','); //通过反射实例化出相应的算法对象 cc.setBehavior((CashSuper)Assembly.Load("商场管理软件").CreateInstance("商场管理软件." + dr["class"].ToString(), false, BindingFlags.Default, null, args, null, null)); double totalPrices = 0d; totalPrices = cc.GetResult(Convert.ToDouble(txtPrice.Text) * Convert.ToDouble(txtNum.Text)); total = total + totalPrices; lbxList.Items.Add("单价:" + txtPrice.Text + " 数量:" + txtNum.Text + " "+cbxType.SelectedItem+ " 合计:" + totalPrices.ToString()); lblResult.Text = total.ToString(); }
private void btnOk_Click(object sender, EventArgs e) { CashContext cc = null; switch (cbxType.SelectedItem.ToString()) { case "正常收费": cc = new CashContext(new CashNormal()); break; case "满300返100": cc = new CashContext(new CashReturn("300", "100")); break; case "打8折": cc = new CashContext(new CashRebate("0.8")); break; } double totalPrices = 0d; totalPrices = cc.GetResult(Convert.ToDouble(txtPrice.Text) * Convert.ToDouble(txtNum.Text)); total = total + totalPrices; lbxList.Items.Add("单价:" + txtPrice.Text + " 数量:" + txtNum.Text + " " + cbxType.SelectedItem + " 合计:" + totalPrices.ToString()); lblResult.Text = total.ToString(); }
private void btnOk_Click(object sender, EventArgs e) { CashContext cc = new CashContext(); //根据用户的选项,查询用户选择项的相关行 DataRow dr = ((DataRow[])ds.Tables[0].Select("name='" + cbxType.SelectedItem.ToString() + "'"))[0]; //声明一个参数的对象数组 object[] args = null; //若有参数,则将其分割成字符串数组,用于实例化时所用的参数 if (dr["para"].ToString() != "") { args = dr["para"].ToString().Split(','); } //通过反射实例化出相应的算法对象 cc.setBehavior((CashSuper)Assembly.Load("商场管理软件").CreateInstance("商场管理软件." + dr["class"].ToString(), false, BindingFlags.Default, null, args, null, null)); double totalPrices = 0d; totalPrices = cc.GetResult(Convert.ToDouble(txtPrice.Text) * Convert.ToDouble(txtNum.Text)); total = total + totalPrices; lbxList.Items.Add("单价:" + txtPrice.Text + " 数量:" + txtNum.Text + " " + cbxType.SelectedItem + " 合计:" + totalPrices.ToString()); lblResult.Text = total.ToString(); }