C# ColorDialog.AllowFullOpen属性代码示例

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 = textBox1.ForeColor ;
    
    // Update the text box color if the user clicks OK 
    if (MyDialog.ShowDialog() == DialogResult.OK)
        textBox1.ForeColor =  MyDialog.Color;
 }

//引入命名空间
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;

    public class ColorFontDialog : System.Windows.Forms.Form
    {
        private System.Windows.Forms.Button button1;
        private System.Windows.Forms.Button button2;
        private System.Windows.Forms.Label label1;
        public ColorFontDialog()
        {
            this.Text = "Font and Color Dialogs";
            this.button1.Text = "&Font";
            this.button2.Text = "&Color";
            this.label1.Text = "Change my FONT and COLOR!";

            this.button1 = new System.Windows.Forms.Button();
            this.button2 = new System.Windows.Forms.Button();
            this.label1 = new System.Windows.Forms.Label();
            this.SuspendLayout();

            this.button1.Location = new System.Drawing.Point(24, 8);
            this.button1.Text = "button1";
            this.button1.Click += new System.EventHandler(this.button1_Click_1);

            this.button2.Location = new System.Drawing.Point(120, 8);
            this.button2.Text = "button2";
            this.button2.Click += new System.EventHandler(this.button2_Click);

            this.label1.Location = new System.Drawing.Point(8, 48);
            this.label1.Size = new System.Drawing.Size(280, 48);
            this.label1.TabIndex = 2;
            this.label1.Text = "label1";

            this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
            this.ClientSize = new System.Drawing.Size(292, 101);
            this.Controls.AddRange(new System.Windows.Forms.Control[] {
                                                                          this.label1,
                                                                          this.button2,
                                                                          this.button1});
            this.Name = "ColorFontDialog";
            this.Text = "ColorFontDialog";
            this.ResumeLayout(false);

        }
        static void Main() 
        {
            Application.Run(new ColorFontDialog());
        }
        private void button2_Click(object sender, System.EventArgs e)
        {
            ColorDialog cd = new ColorDialog();
            cd.AllowFullOpen = true;   // allow custom colors
            cd.FullOpen = true;   // shows custom colors automatically
            cd.Color = Color.DarkBlue;  // sets the custom color
            if(cd.ShowDialog() == System.Windows.Forms.DialogResult.OK)
                this.label1.ForeColor = cd.Color;
        }
        private void button1_Click_1(object sender, System.EventArgs e)
        {
            FontDialog fd = new FontDialog();
            fd.ShowColor = true;
            fd.Color = Color.Blue;
            fd.ShowApply = true;   // ColorDialog does not provide this option!!!
            fd.Apply += new EventHandler(ApplyFont);
            if(fd.ShowDialog() != System.Windows.Forms.DialogResult.Cancel)
                ChangeFont(fd);
        }

        private void ApplyFont(object o, EventArgs ea)
        {
            ChangeFont((FontDialog)o);
        }

        private void ChangeFont(FontDialog fd)
        {
            this.label1.Font = fd.Font;
            this.label1.ForeColor = fd.Color;
        }
    }