Error: An object reference is required for the non-static field, method or property

Question

if (pattern[x] == 0)
                {
                    Form1.button0.BackColor = Color.Yellow;

                }
                else if (pattern[x] == 1)
                {

                }
                else if (pattern[x] == 2)
                {

                }
                else
                {

                }

I'm trying to set the button backcolor, but whenever I try it doesn't recognise that button0 is a thing :/

`Form1` is the class, not an instance of that class. You need an instance of `Form1` to access `button0` — Stephan Bauer, Nov 05 '14 at 10:43
Form1 is a class. you need to use an instance of that class, i.e. a variable of type Form1. — Evil Dog Pie, Nov 05 '14 at 10:43

Belogix · Answer 1 · 2014-11-05T11:02:12.647

You need to create an instance of Form1 so something like this:

var myForm = new Form1();
if (pattern[x] == 0)
{
    myForm.button0.BackColor = Color.Yellow;
}
else if (pattern[x] == 1)
{
    //...
}
else if (pattern[x] == 2)
{
    //...
}
else
{
    //...
}
myForm.ShowDialog();

NOTE: ShowDialog() at the end will actually show your form as a dialog. You could just use .Show() but it depends on how you want to display the form. This should get your started though!

score 0 · Answer 2 · answered Nov 05 '14 at 11:29

0

If indeed button0 exists in your Form1 (it is created in your Form1.desginer.cs) you can simply access it by:

button0.BackColor = Color.Yellow;

answered Nov 05 '14 at 11:29

apomene

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Error: An object reference is required for the non-static field, method or property

2 Answers2