參數不windowsForm

Question

有效的例外

我使用多功能面板製造多段工程，並使用access數據庫，並在其中插入一些東西象下面這樣：

private void addmoneyPanel_firstLoad() 
    { 
     try 
     { 
      employee_list.Items.Clear(); 
      connection.Open(); 
      OleDbCommand command = new OleDbCommand(); 
      command.Connection = connection; 

      command.CommandText = "select Ename,Elastname from employee"; 
      OleDbDataReader reader = command.ExecuteReader(); 
      while(reader.Read()) 
      { 
       employee_list.Items.Add(reader[0].ToString() + " \n" +reader[1].ToString()); 
      } 
      connection.Close(); 
      /*addMoneyPanelMes.Text = "با موفقیت ذخیره شد."; 
      addMoneyPanelMes.ForeColor = Color.Green;*/ 

     } 
     catch (Exception err) 
     { 
      addMoneyPanelMes.Text = "خظا در ارتباط با پایگاه داده."; 
      addMoneyPanelMes.ForeColor = Color.Red; 
      addMoneyPanelMes.Visible = true; 
     } 
    } 
    private void pictureBox1_Click_1(object sender, EventArgs e) 
    { 
     try 
     { 
      string TempPrice, TempCheckNum, TempCriditNum; 
      connection.Open(); 
      OleDbCommand command = new OleDbCommand(); 
      command.Connection = connection; 
      if(radioButton1.Checked == true) 
      { 
       TempPrice = money_price.Text; 
       TempCheckNum = "0"; 
       TempCriditNum = "0"; 
      }else if(radioButton2.Checked == true) 
      { 
       TempPrice = money_price.Text; 
       TempCheckNum = "0"; 
       TempCriditNum = criditNumber.Text; 
      } 
      else 
      { 
       TempPrice = money_price.Text; 
       TempCheckNum = checkNumber.Text; 
       TempCriditNum = "0"; 
      } 
      ///////////////////////////////split the combo box names 
      string mainToSplit,id = ""; 
      string[] splited; 
      mainToSplit = employee_list.SelectedItem.ToString(); 
      splited = mainToSplit.Split('\n'); 
      splited[0] = "" + splited[0].Remove((splited[0].Length-1),1); 

      command.CommandText = "select id from employee where Ename='" +splited[0]+ "' AND Elastname='" +splited[1]+"'"; 
      OleDbDataReader reader = command.ExecuteReader(); 
      if (reader.Read()) 
       id = reader[0].ToString(); 


      connection.Close(); 

      connection.Open(); 
      OleDbCommand command2 = new OleDbCommand(); 

      command2.Connection = connection; 
      command2.CommandText = "INSERT INTO realMoney (price,cardnum,checknum,theDate,employeeid,descrip) values(" + Int32.Parse(TempPrice) + "," + Int32.Parse(TempCriditNum) + "," + Int32.Parse(TempCheckNum) + ",#" + dateTimePickerX1.GetSelectedDateInPersianDateTime().ToShortDateString() + "#," + Int32.Parse(id) + ",'" + money_descrip.Text + "')"; 
      command2.ExecuteNonQuery(); 
      connection.Close(); 
      addMoneyPanelMes.Text = "با موفقیت ذخیره شد."; 
      addMoneyPanelMes.ForeColor = Color.Green; 
      addMoneyPanelMes.Visible = true; 

     } 

     catch(OleDbException h) 
     { 
      addMoneyPanelMes.Text = "خظا در ارتباط با پایگاه داده."; 
      addMoneyPanelMes.ForeColor = Color.Red; 
      addMoneyPanelMes.Visible = true; 
     } 
    } 

這2個功能將成功運行，但後我會得到這個部分的「參數無效」例外：

private void timer1_Tick(object sender, EventArgs e) 
    { 
     if(pass == 0 || pass == 1) 
     { 
      prossespass(); 
     } 
     DateTime datetime = DateTime.Now; 
     try 
     { 
      time.Text = string.Format("{0:hh:mm:ss}", DateTime.Now); // error here 
      timesun.Text = datetime.ToString("tt"); 
     } 
     catch(Exception d) 
     { } 

    } 

這是我的項目中的時鐘計時器。所以在返回到主面板時鐘已存在（使主面板可見並隱藏當前面板）時鐘文本框不能設置，我的項目崩潰。 我不知道問題是什麼。 但如果我擦除該部分從我提到的第二個功能：

addMoneyPanelMes.Text = "با موفقیت ذخیره شد."; 
      addMoneyPanelMes.ForeColor = Color.Green; 
      addMoneyPanelMes.Visible = true; 

或第二函數上述去除插入部分：

connection.Open(); 
      OleDbCommand command2 = new OleDbCommand(); 

      command2.Connection = connection; 
      command2.CommandText = "INSERT INTO realMoney (price,cardnum,checknum,theDate,employeeid,descrip) values(" + Int32.Parse(TempPrice) + "," + Int32.Parse(TempCriditNum) + "," + Int32.Parse(TempCheckNum) + ",#" + dateTimePickerX1.GetSelectedDateInPersianDateTime().ToShortDateString() + "#," + Int32.Parse(id) + ",'" + money_descrip.Text + "')"; 
      command2.ExecuteNonQuery(); 
      connection.Close(); 

我有在與數據庫一起使用的其它面板的其它功能，但一起工作就是這樣。謝謝你的幫助。

Answer 1

剛剛關閉計時器：

timer1.Enabled = false; 

時輸入到每個面板，並把它回到主面板時上：

timer1.Enabled = true;