mac mac - 2 months ago 10
C# Question

How to disable all buttons except one in the click event handler?

I am writing below code. Please someone can tell me that here in switch statement how can I disable all other buttons when any one of them is pressed. I actually want the user to know his luck only once in this application.

namespace tryAppWFA
{
public partial class mainWindow : Form
{
public mainWindow()
{
InitializeComponent();
}

private void button_click(object sender, EventArgs e)
{
Button button=(Button)sender;
switch (button.Name) {
case "button1":
textBox.Text = "Hey ! you may get a car after one year";

break;
case "button2":
textBox.Text = "Hey ! you may get a big super duper House after a year";
break;
case "button3":
textBox.Text = "something";
break;
case "button4":
textBox.Text = "something";
break;
case "button5":
textBox.Text = "somehting"
break;
case "exit":
Environment.Exit(0);
break;
default:
break;

}

}
}
}

Answer

you can do the following to achieve this :
first set your buttons Tag property to the buttons name in your load event of the form :

private void MainForm_Load(object sender, EventArgs e)
{
    button1.Tag = button1.Name;
    button2.Tag = button2.Name;
    btnExit.Tag = btnExit.Name;
    //and so on...

}

then what you want to do is iterate through your controls and disable the ones that are not the clicked one :
Note that here its considered that the buttons are not in a groupbox, if that was the case you would have to iterate through your container which would be the groupbox in that case.

private void button5_Click(object sender, EventArgs e)
{
    foreach (Button item in this.Controls.OfType<Control>().Where(c => c.GetType() == typeof(Button)))
    {
        if (item.Name == btnExit.Name)
            continue;
        item.Enabled = false;
    }
    Button button = (Button)sender;
    switch (button.Name)
    {
        case "button1":
            textBox.Text = "Hey ! you may get a car after one year";
            break;
        case "button2":
            textBox.Text = "Hey ! you may get a big super duper House after a year";
            break;
        case "button3":
            textBox.Text = "something";
            break;
        case "button4":
            textBox.Text = "something";
            break;
        case "button5":
            textBox.Text = "somehting";
             break;
        default:
            break;
    }
}

edit: i also removed the exit button from the switch statement.