visual studio - C # Windows 양식 응용 프로그램의 배수 함수에서 변수 사용

Visual Studio의 여러 함수에서 변수를 사용하고 싶습니다.비공개 button1_Click에 대한 레이블로 표시되는 데value_1을 가져 오려고합니다.

이 방법으로 시도하면 다음과 같은 오류 메시지가 나타납니다.

'Black1_CheckedChanged'는 대리자 'EventHandler'와 일치합니다

내가 무엇을 놓치고 있습니까? 정말 도움을 주셔서 감사합니다. 감사합니다.

public partial class Form1 : Form
{
    int value_1 = 20;
    int value_2 = 20;
    int value_3 = 20;
    public Form1()
    {
        InitializeComponent();
    }
    // Groupe Colour 1
    private void Black1_CheckedChanged(object sender, EventArgs e, int value_1)
    {
        colour1.BackColor = System.Drawing.Color.Black;
        groupBox1.BackColor = System.Drawing.Color.Black;
        value_1 = 0;
    }
    private void Brown1_CheckedChanged(object sender, EventArgs e)
    {
        colour1.BackColor = System.Drawing.Color.Brown;
        groupBox1.BackColor = System.Drawing.Color.Brown;
        value_1 = 1;
    }
    private void Red1_CheckedChanged(object sender, EventArgs e)
    {
        colour1.BackColor = System.Drawing.Color.Red;
        groupBox1.BackColor = System.Drawing.Color.Red;
        value_1 = 2;
    }
    private void Orange1_CheckedChanged(object sender, EventArgs e)
    {
        colour1.BackColor = System.Drawing.Color.Orange;
        groupBox1.BackColor = System.Drawing.Color.Orange;
        value_1 = 3;
    }
    private void Yellow1_CheckedChanged(object sender, EventArgs e)
    {
        colour1.BackColor = System.Drawing.Color.Yellow;
        groupBox1.BackColor = System.Drawing.Color.Yellow;
        value_1 = 4;
    }
    private void Green1_CheckedChanged(object sender, EventArgs e)
    {
        colour1.BackColor = System.Drawing.Color.Green;
        groupBox1.BackColor = System.Drawing.Color.Green;
        value_1 = 5;
    }
    private void Blue1_CheckedChanged(object sender, EventArgs e)
    {
        colour1.BackColor = System.Drawing.Color.Blue;
        groupBox1.BackColor = System.Drawing.Color.Blue;
        value_1 = 6;
    }
    private void Purple1_CheckedChanged(object sender, EventArgs e)
    {
        colour1.BackColor = System.Drawing.Color.Purple;
        groupBox1.BackColor = System.Drawing.Color.Purple;
        value_1 = 7;
    }
    private void Grey1_CheckedChanged(object sender, EventArgs e)
    {
        colour1.BackColor = System.Drawing.Color.Gray;
        groupBox1.BackColor = System.Drawing.Color.Gray;
        value_1 = 8;
    }
    private void White1_CheckedChanged(object sender, EventArgs e)
    {
        colour1.BackColor = System.Drawing.Color.White;
        groupBox1.BackColor = System.Drawing.Color.White;
        value_1 = 9;
    }
    private void button1_Click(object sender, EventArgs e)
    {
        value_1 = int.Parse(label_total.Text);
    }
}