C#

Afzaal Ahmad Zeeshan wrote:

Where did you find that code, or API?

Afzaal Ahmad Zeeshan wrote:

why would you need to do that, when there are many easy cases?

Django_Untaken wrote:

Can you tell me those easy cases? I do not know.

OriginalGriff wrote:

please try considering us as normal humans

OriginalGriff wrote:

considering us as normal humans

Function.Target == new
{
    Val1 = 3,
    Val2 = 4,
    Function = Func<int>
}

Expression<Func<int>> expr = () => Class1.GetValue(Val1, Val2);
var body = (MethodCallExpression)expr.Body;
var parameters = body.Method.GetParameters();
for (int index = 0; index < body.Arguments.Count; index++)
{
    var arg = (MemberExpression)body.Arguments[index];
    var instance = arg.Expression == null ? null : ((ConstantExpression)arg.Expression).Value;
    var field = (FieldInfo)arg.Member;
    object value = field.GetValue(instance);
    Console.WriteLine("{0} = {1}", parameters[index].Name, value);
}

/*
Output:
First = 3
Second = 4
*/

Member 13010731 wrote:

Why is the "price" underlined?

public partial class Form1 : Form
{
    private double price = 0;
    
    public Form1()
    {
        InitializeComponent();
        
        if (Material.SelectedIndex == 0 && Thickness.SelectedIndex == 0)
            price += 82.36;
        if (Material.SelectedIndex == 0 && Thickness.SelectedIndex == 1)
            price += 125.23;
        if (Material.SelectedIndex == 0 && Thickness.SelectedIndex == 2)
            price += 163.98;
        // and so on...
    }
    
    private void Calculate_Click(object sender, EventArgs e)
    {
        MaterialPriceLabel.Text = price;
    }
}

public partial class Form1 : Form
{
    private double price = 0;
    
    public Form1()
    {
        InitializeComponent();
        
        if (Material.SelectedIndex == 0 && Thickness.SelectedIndex == 0)
            price += 82.36;
        if (Material.SelectedIndex == 0 && Thickness.SelectedIndex == 1)
            price += 125.23;
        if (Material.SelectedIndex == 0 && Thickness.SelectedIndex == 2)
            price += 163.98;
        // and so on...
    }
    
    private void Calculate_Click(object sender, EventArgs e)
    {
        MaterialPriceLabel.Text = price.ToString();
    }
}

public partial class Form1 : Form
    {

        private double price = 0; 

        public Form1()
        {

            InitializeComponent();

            if (Material.SelectedIndex == 0 && Thickness.SelectedIndex == 0) 
                price += 82.36;                                             // If this is true, value of price should be 82.36 but, when I click on Calculate it's 0.

            if (Material.SelectedIndex == 0 && Thickness.SelectedIndex == 1)  
                price += 125.23;
            if (Material.SelectedIndex == 0 && Thickness.SelectedIndex == 2)
                price += 163.98;


        }

        private void Calculate_Click(object sender, EventArgs e)
        {
            MaterialPriceLabel.Text = cena.ToString(); // When I click, it shows 0 every time
        }
    }

Dave Kreskowiak wrote:

Also, you don't seem to have a grasp of the basics of C# or debugging techniques. True?