Question

C# Windows Forms Programming

Big M - 口 x 單點/套餐 單點 套餐 漢堡炸鍋 口薯條 0小薯 $250大薯 $35 口麥香魚 S40 内 口麥香鍋 50 口牛肉堡 S50 y 口飲料 30 0可樂 0咖啡 + 55 0紅茶 口原味炸鍋 850 口辣味以下鍋 $50 重置

I want to write an if-else command for this part:

+++++++++++++++++++++++++++++

if (listBox1.SelectedItem.Equals("單點"))
{
}
else
{
}

++++++++++++++++++++++++++

So that if I choose "單點"(the 1st one), the only checkbox on the green box ”薯條“ (let's say this as ”checkbox1“) and the only checkbox on the blue box "飲料 $30" (let this as ”checkbox2“) WILL BE "UNCHECKED". if I choose “套餐" (the 2nd one), those two checkboxes WILL BE "CHECKED" automatically.

Please help me :) Thank You

I'll promise to give a like if the codes u provide work

#Computer Science

#WindowsformsC#

#Clanguage

#Programming

Answer 1

In case of any query do comment. Please rate answer as well. Thanks

Code:

you can use below code in your listbox_selectedIndexChanged event as shown in other image:

private void listBox1_SelectedIndexChanged_1(object sender, EventArgs e)
{
if (listBox1.SelectedItem.Equals("單點"))
{
//set the checked property of checkbox1 and checkbox2 to false
checkBox1.Checked = false;
checkBox2.Checked = false;
}
else
{
//set the checked property of checkbox1 and checkbox2 to true
checkBox1.Checked = true;
checkBox2.Checked = true;
}
}

Output:

單點 套餐 →口薯條 口飲料 $30

- 口 「單點 -薯條 一口飲料 530