private void BtnOK_Click(object sender, EventArgs e) { try { int num = Convert.ToInt32(TxtNum.Text); int sum = 0; string msg = "1到" + num + "被7整除的數:\n"; if (num > 7 && num < 100) { for (int i = 1; i < num; i++) { if (i >= 7 && i % 7 == 0) { msg += i + "\n"; sum += i; } } msg += "------------\n" + "總和等於" + sum; MessageBox.Show(msg); } else { MessageBox.Show("請輸入大於7小於100的正整數", "錯誤"); TxtNum.Focus(); } } catch { MessageBox.Show("請輸入數字", "錯誤"); TxtNum.Focus(); } }
//點選購買物品的清單項目時 private void LstName_SelectedIndexChanged(object sender, EventArgs e) { if (LstName.SelectedIndex >= 0) //若選項的註標值>= 0 { TxtName.Text = LstName.Text; //顯示品名 TxtPrice.Text = s_price[LstName.SelectedIndex].ToString(); //顯示單價 TxtNum.Text = "1"; //預設數量為1 TxtTotal.Text = ""; //預設小計為空字串 TxtNum.Focus(); //txtNum設為停駐焦點 } }
private void LstName_SelectedIndexChanged(object sender, EventArgs e) { if (LstName.SelectedIndex >= 0) { TxtName.Text = LstName.Text; TxtPrice.Text = s_price[LstName.SelectedIndex].ToString(); TxtNum.Text = "1"; TxtTotal.Text = ""; TxtSum.Text = ""; TxtNum.Focus(); } }
private void InitUIElement() { txtScoreCPU = FindComponent <TxtNum>("TxtScoreCPU"); txtScoreGPU = FindComponent <TxtNum>("TxtScoreGPU"); txtScoreRAM = FindComponent <TxtNum>("TxtScoreRAM"); txtScoreBattery = FindComponent <TxtNum>("TxtScoreBattery"); txtScoreDisplay = FindComponent <TxtNum>("TxtScoreDisplay"); txtScore = FindComponent <TxtNum>("TxtScore"); txtError = FindComponent <TxtNum>("TxtError"); btnPuase = FindComponent <Button>("BtnPause"); imgLevel = FindComponent <ImgLevel>("ImgLevel"); imgBatteryState = FindComponent <ImgBatteryState>("ImgBatteryState"); imgTimeOut = FindComponent <ImgTimeOut>("ImgTimeOut"); settingPanel = FindComponent <SettingPanel>("SettingPanel"); }
private bool ValidateInput() { if (TxtCId.Text == "") //验证是否输入了班级代码 { MessageBox.Show("请输入班级号!", "提示信息", MessageBoxButtons.OK, MessageBoxIcon.Information); TxtCId.Focus(); return(false); } if (TxtCName.Text == "") //验证是否输入了班级名称 { MessageBox.Show("请输入班级名称!", "提示信息", MessageBoxButtons.OK, MessageBoxIcon.Information); TxtCName.Focus(); return(false); } if (TxtNum.Text == "") //验证是否输入了人数 { MessageBox.Show("请输入学生人数!", "提示信息", MessageBoxButtons.OK, MessageBoxIcon.Information); TxtNum.Focus(); return(false); } return(true); }
private void BtnCancelar_Click(object sender, EventArgs e) { TxtNum.Clear(); TxtRes.Clear(); }
private void TxtNum_Enter(object sender, EventArgs e) { TxtNum.Clear(); }
private void Button_Click_1(object sender, RoutedEventArgs e) { TxtNum.Clear(); }