C# 基於組合框選擇啟用/禁用多個文本框

Question

我只是一個正在學習如何編碼的普通人。 我不喜歡代碼看起來很草率並且可以合並。 話雖如此，我需要整合一些代碼，但我未能找到有關如何執行此操作的信息。

我正在嘗試基於組合框選擇啟用/禁用多個文本框。

這是我試圖整合的又長又丑的代碼

private void comboBox2_SelectedIndexChanged(object sender, EventArgs e)
    {
        int Combobox_Process_Selected_Index = comboBox2.SelectedIndex;
        if (Combobox_Process_Selected_Index == 0)
        {
            textBox2.Enabled = false;
            textBox3.Enabled = false;
            textBox4.Enabled = false;
            textBox5.Enabled = false;
            textBox6.Enabled = false;
            textBox7.Enabled = false;
            textBox8.Enabled = false;
            textBox9.Enabled = false;
            textBox10.Enabled = false;
            textBox11.Enabled = false;
            textBox12.Enabled = false;
            textBox13.Enabled = false;
        }
        if (Combobox_Process_Selected_Index == 1)
        {
            textBox2.Enabled = true;
            textBox3.Enabled = false;
            textBox4.Enabled = false;
            textBox5.Enabled = false;
            textBox6.Enabled = false;
            textBox7.Enabled = false;
            textBox8.Enabled = false;
            textBox9.Enabled = false;
            textBox10.Enabled = false;
            textBox11.Enabled = false;
            textBox12.Enabled = false;
            textBox13.Enabled = false;
        }
        if (Combobox_Process_Selected_Index == 2)
        {
            textBox2.Enabled = true;
            textBox3.Enabled = true;
            textBox4.Enabled = false;
            textBox5.Enabled = false;
            textBox6.Enabled = false;
            textBox7.Enabled = false;
            textBox8.Enabled = false;
            textBox9.Enabled = false;
            textBox10.Enabled = false;
            textBox11.Enabled = false;
            textBox12.Enabled = false;
            textBox13.Enabled = false;
        }
        if (Combobox_Process_Selected_Index == 3)
        {
            textBox2.Enabled = true;
            textBox3.Enabled = true;
            textBox4.Enabled = true;
            textBox5.Enabled = false;
            textBox6.Enabled = false;
            textBox7.Enabled = false;
            textBox8.Enabled = false;
            textBox9.Enabled = false;
            textBox10.Enabled = false;
            textBox11.Enabled = false;
            textBox12.Enabled = false;
            textBox13.Enabled = false;
        }
        if (Combobox_Process_Selected_Index == 4)
        {
            textBox2.Enabled = true;
            textBox3.Enabled = true;
            textBox4.Enabled = true;
            textBox5.Enabled = true;
            textBox6.Enabled = false;
            textBox7.Enabled = false;
            textBox8.Enabled = false;
            textBox9.Enabled = false;
            textBox10.Enabled = false;
            textBox11.Enabled = false;
            textBox12.Enabled = false;
            textBox13.Enabled = false;
        }
        if (Combobox_Process_Selected_Index == 5)
        {
            textBox2.Enabled = true;
            textBox3.Enabled = true;
            textBox4.Enabled = true;
            textBox5.Enabled = true;
            textBox6.Enabled = true;
            textBox7.Enabled = false;
            textBox8.Enabled = false;
            textBox9.Enabled = false;
            textBox10.Enabled = false;
            textBox11.Enabled = false;
            textBox12.Enabled = false;
            textBox13.Enabled = false;
        }
        if (Combobox_Process_Selected_Index == 6)
        {
            textBox2.Enabled = true;
            textBox3.Enabled = true;
            textBox4.Enabled = true;
            textBox5.Enabled = true;
            textBox6.Enabled = true;
            textBox7.Enabled = true;
            textBox8.Enabled = false;
            textBox9.Enabled = false;
            textBox10.Enabled = false;
            textBox11.Enabled = false;
            textBox12.Enabled = false;
            textBox13.Enabled = false;
        }
        if (Combobox_Process_Selected_Index == 7)
        {
            textBox2.Enabled = true;
            textBox3.Enabled = true;
            textBox4.Enabled = true;
            textBox5.Enabled = true;
            textBox6.Enabled = true;
            textBox7.Enabled = true;
            textBox8.Enabled = true;
            textBox9.Enabled = false;
            textBox10.Enabled = false;
            textBox11.Enabled = false;
            textBox12.Enabled = false;
            textBox13.Enabled = false;
        }
        if (Combobox_Process_Selected_Index == 8)
        {
            textBox2.Enabled = true;
            textBox3.Enabled = true;
            textBox4.Enabled = true;
            textBox5.Enabled = true;
            textBox6.Enabled = true;
            textBox7.Enabled = true;
            textBox8.Enabled = true;
            textBox9.Enabled = true;
            textBox10.Enabled = false;
            textBox11.Enabled = false;
            textBox12.Enabled = false;
            textBox13.Enabled = false;
        }
        if (Combobox_Process_Selected_Index == 9)
        {
            textBox2.Enabled = true;
            textBox3.Enabled = true;
            textBox4.Enabled = true;
            textBox5.Enabled = true;
            textBox6.Enabled = true;
            textBox7.Enabled = true;
            textBox8.Enabled = true;
            textBox9.Enabled = true;
            textBox10.Enabled = true;
            textBox11.Enabled = false;
            textBox12.Enabled = false;
            textBox13.Enabled = false;
        }
        if (Combobox_Process_Selected_Index == 10)
        {
            textBox2.Enabled = true;
            textBox3.Enabled = true;
            textBox4.Enabled = true;
            textBox5.Enabled = true;
            textBox6.Enabled = true;
            textBox7.Enabled = true;
            textBox8.Enabled = true;
            textBox9.Enabled = true;
            textBox10.Enabled = true;
            textBox11.Enabled = true;
            textBox12.Enabled = false;
            textBox13.Enabled = false;
        }
        if (Combobox_Process_Selected_Index == 11)
        {
            textBox2.Enabled = true;
            textBox3.Enabled = true;
            textBox4.Enabled = true;
            textBox5.Enabled = true;
            textBox6.Enabled = true;
            textBox7.Enabled = true;
            textBox8.Enabled = true;
            textBox9.Enabled = true;
            textBox10.Enabled = true;
            textBox11.Enabled = true;
            textBox12.Enabled = true;
            textBox13.Enabled = false;
        }
        if (Combobox_Process_Selected_Index == 12)
        {
            textBox2.Enabled = true;
            textBox3.Enabled = true;
            textBox4.Enabled = true;
            textBox5.Enabled = true;
            textBox6.Enabled = true;
            textBox7.Enabled = true;
            textBox8.Enabled = true;
            textBox9.Enabled = true;
            textBox10.Enabled = true;
            textBox11.Enabled = true;
            textBox12.Enabled = true;
            textBox13.Enabled = true;
        }

    }

Answer 1

好的，我只能說非常感謝h8red 。 我從大量的垃圾代碼變成了不到 10 行代碼。

這是通過將文本框放置在面板中然后根據組合框用戶輸入啟用/禁用它們來合並代碼的結果。

        private void comboBox2_SelectedIndexChanged(object sender, EventArgs e)
    {
        //set a counter to track textbox number and compare with combobox selection
        int countTB = 0;

        //grab combobox selection and place as an integer
        int Combobox_Process_Selected_Index = comboBox2.SelectedIndex;

        //this looks at each child control in my panel (named panel1)
        foreach (Control child in panel1.Controls)  
        {
            //this looks at each textbox individually and enables them until combo selection is reached and disables the rest
            TextBox textBox = child as TextBox;              
            if (countTB < Combobox_Process_Selected_Index)
            {
                textBox.Enabled = true;
            }
            else
                textBox.Enabled = false;
            countTB++;
        }
    }

Answer 2

您需要一個容器控件類來包含其中的所有文本框。 最簡單的一種是Panel類。 只需將所有文本panel.Controls添加到panel.Controls ，您就可以循環訪問它們。 您還必須手動設置一個選項卡才能僅啟用其中的一些選項卡。