如何调出 Color Picker Pallete C#

Question

这就是我想要执行的操作： 用户从背景颜色菜单中选择一种颜色。这会调出调色板，用户选择自定义 RGB 颜色，该颜色将是新的textboxMain.BackColor。

Answer 1

来自微软ColorDialog Class：

private void button1_Click(object sender, System.EventArgs e)
{
    ColorDialog MyDialog = new ColorDialog();
    // Keeps the user from selecting a custom color.
    MyDialog.AllowFullOpen = false;
    // Allows the user to get help. (The default is false.)
    MyDialog.ShowHelp = true;
    // Sets the initial color select to the current text color.
    MyDialog.Color =  textboxMain.BackColor;

    // Update the text box color if the user clicks OK  
    if (MyDialog.ShowDialog() == DialogResult.OK)
         textboxMain.BackColor =  MyDialog.Color;
}