将“颜色”设置为“变量”以供以后在c＃中使用

Question

i try to store a Color to a variable that i can use later without providing RGB informations twice:

Code:

public partial class Form1 : Form
{
    public Color Color1 = new Color();
    public Color Color2 = new Color();

    public Form1 ()
    {
        InitializeComponent();            
        Color1 = Color.White;
        Color2 = Color.FromArgb(255, 112, 114);
    }


    private void LoadSomething()
    {
    //not working - but dont know why
    TreeNode TreeNode1 = new TreeNode();
    TreeNode1.ForeColor = Color1;
    TreeNode1.BackColor = Color2;

    //working
    TreeNode TreeNode1 = new TreeNode();
    TreeNode1.ForeColor = Color.White;
    TreeNode1.BackColor = Color.FromArgb(255, 112, 114);
    }

}

Can someone tell me why its not working in the first way? thx

Answer 1

The reason could be as follows:

You call your method befor construcotr of Form1 is called. This way, color objects are instantiated, but in constructor you pass object with actual colors specified. Thus, before constructor is called, you have "blank" colors, after constructor is called, you have white and the other color.

So, if you call LoadSomething before constructor is called, the first approach won't work. The second, directly specifies color, so it will always work.

But to be sure, you should share code, where you call LoadSomething .