实例介绍
【实例简介】
【实例截图】
【实例截图】

【核心代码】
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Drawing.Text;
namespace System
{
/// <summary>
/// Form1 的摘要说明。
/// </summary>
public class Form1 : System.Windows.Forms.Form
{
private System.Windows.Forms.Label label1;
private System.Windows.Forms.ComboBox comboBox1;
private System.Windows.Forms.ComboBox comboBox2;
private System.Windows.Forms.Label label2;
private System.Windows.Forms.ComboBox comboBox3;
private System.Windows.Forms.Label label3;
private System.Windows.Forms.Label label4;
private System.Windows.Forms.ComboBox comboBox4;
private System.Windows.Forms.TextBox textBox1;
/// <summary>
/// 必需的设计器变量。
/// </summary>
private System.ComponentModel.Container components = null;
public Form1()
{
//
// Windows 窗体设计器支持所必需的
//
InitializeComponent();
//
// TODO: 在 InitializeComponent 调用后添加任何构造函数代码
//
}
/// <summary>
/// 清理所有正在使用的资源。
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}
#region Windows 窗体设计器生成的代码
/// <summary>
/// 设计器支持所需的方法 - 不要使用代码编辑器修改
/// 此方法的内容。
/// </summary>
private void InitializeComponent()
{
this.label1 = new System.Windows.Forms.Label();
this.comboBox1 = new System.Windows.Forms.ComboBox();
this.comboBox2 = new System.Windows.Forms.ComboBox();
this.label2 = new System.Windows.Forms.Label();
this.comboBox3 = new System.Windows.Forms.ComboBox();
this.label3 = new System.Windows.Forms.Label();
this.label4 = new System.Windows.Forms.Label();
this.comboBox4 = new System.Windows.Forms.ComboBox();
this.textBox1 = new System.Windows.Forms.TextBox();
this.SuspendLayout();
//
// label1
//
this.label1.Location = new System.Drawing.Point(8, 8);
this.label1.Name = "label1";
this.label1.Size = new System.Drawing.Size(72, 16);
this.label1.TabIndex = 0;
this.label1.Text = "选择字体:";
//
// comboBox1
//
this.comboBox1.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
this.comboBox1.Location = new System.Drawing.Point(72, 8);
this.comboBox1.Name = "comboBox1";
this.comboBox1.Size = new System.Drawing.Size(144, 20);
this.comboBox1.TabIndex = 1;
this.comboBox1.SelectedIndexChanged = new System.EventHandler(this.comboBox1_SelectedIndexChanged);
//
// comboBox2
//
this.comboBox2.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
this.comboBox2.Location = new System.Drawing.Point(288, 8);
this.comboBox2.Name = "comboBox2";
this.comboBox2.Size = new System.Drawing.Size(64, 20);
this.comboBox2.TabIndex = 3;
this.comboBox2.SelectedIndexChanged = new System.EventHandler(this.comboBox1_SelectedIndexChanged);
//
// label2
//
this.label2.Location = new System.Drawing.Point(224, 8);
this.label2.Name = "label2";
this.label2.Size = new System.Drawing.Size(72, 16);
this.label2.TabIndex = 2;
this.label2.Text = "选择字型:";
//
// comboBox3
//
this.comboBox3.Location = new System.Drawing.Point(288, 32);
this.comboBox3.Name = "comboBox3";
this.comboBox3.Size = new System.Drawing.Size(64, 20);
this.comboBox3.TabIndex = 5;
this.comboBox3.TextChanged = new System.EventHandler(this.comboBox1_SelectedIndexChanged);
//
// label3
//
this.label3.Location = new System.Drawing.Point(224, 32);
this.label3.Name = "label3";
this.label3.Size = new System.Drawing.Size(72, 16);
this.label3.TabIndex = 4;
this.label3.Text = "选择字号:";
//
// label4
//
this.label4.Location = new System.Drawing.Point(8, 32);
this.label4.Name = "label4";
this.label4.Size = new System.Drawing.Size(72, 16);
this.label4.TabIndex = 6;
this.label4.Text = "选择颜色:";
//
// comboBox4
//
this.comboBox4.DrawMode = System.Windows.Forms.DrawMode.OwnerDrawFixed;
this.comboBox4.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
this.comboBox4.Location = new System.Drawing.Point(72, 32);
this.comboBox4.Name = "comboBox4";
this.comboBox4.Size = new System.Drawing.Size(144, 22);
this.comboBox4.TabIndex = 9;
this.comboBox4.SelectedIndexChanged = new System.EventHandler(this.comboBox1_SelectedIndexChanged);
this.comboBox4.MeasureItem = new System.Windows.Forms.MeasureItemEventHandler(this.comboBox4_MeasureItem);
this.comboBox4.DrawItem = new System.Windows.Forms.DrawItemEventHandler(this.comboBox4_DrawItem);
//
// textBox1
//
this.textBox1.Location = new System.Drawing.Point(8, 56);
this.textBox1.Multiline = true;
this.textBox1.Name = "textBox1";
this.textBox1.ScrollBars = System.Windows.Forms.ScrollBars.Vertical;
this.textBox1.Size = new System.Drawing.Size(344, 136);
this.textBox1.TabIndex = 10;
this.textBox1.Text = "Visual C#.Net精彩编程实例集锦";
//
// Form1
//
this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
this.ClientSize = new System.Drawing.Size(360, 198);
this.Controls.Add(this.textBox1);
this.Controls.Add(this.comboBox4);
this.Controls.Add(this.label4);
this.Controls.Add(this.comboBox3);
this.Controls.Add(this.label3);
this.Controls.Add(this.comboBox2);
this.Controls.Add(this.label2);
this.Controls.Add(this.comboBox1);
this.Controls.Add(this.label1);
this.MaximizeBox = false;
this.Name = "Form1";
this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
this.Text = "演示获取系统已经安装的字体";
this.Load = new System.EventHandler(this.Form1_Load);
this.ResumeLayout(false);
}
#endregion
/// <summary>
/// 应用程序的主入口点。
/// </summary>
[STAThread]
static void Main()
{
Application.Run(new Form1());
}
private void Form1_Load(object sender, System.EventArgs e)
{
//获取系统已经安装的字体
InstalledFontCollection MyFont=new InstalledFontCollection();
FontFamily[] MyFontFamilies=MyFont.Families;
int Count=MyFontFamilies.Length;
for(int i=0;i<Count;i )
{
string FontName=MyFontFamilies[i].Name;
this.comboBox1.Items.Add(FontName);
}
//设置字体风格列表
string []MyStyle=new string[]{"加粗","倾斜","正常","删除线","下划线"};
for(int i=0;i<5;i )
{
string StyleName=MyStyle[i];
this.comboBox2.Items.Add(StyleName);
}
//设置字体大小列表
float []MySize=new float[]{1,2,4,6,8,10,12,16,18,20,22,24,32,36,48,64,72};
foreach(float f in MySize)
{
this.comboBox3.Items.Add(f);
}
//设置颜色列表值
this.comboBox4.DisplayMember="Color";
this.comboBox4.Items.Add(Brushes.Cyan);
this.comboBox4.Items.Add(Brushes.DarkSalmon);
this.comboBox4.Items.Add(Brushes.Gray);
this.comboBox4.Items.Add(Brushes.Green);
this.comboBox4.Items.Add(Brushes.AliceBlue);
this.comboBox4.Items.Add(Brushes.Black);
this.comboBox4.Items.Add(Brushes.Blue);
this.comboBox4.Items.Add(Brushes.Chocolate);
this.comboBox4.Items.Add(Brushes.Pink);
this.comboBox4.Items.Add(Brushes.Red);
this.comboBox4.Items.Add(Brushes.LightBlue);
this.comboBox4.Items.Add(Brushes.Brown);
this.comboBox4.Items.Add(Brushes.DodgerBlue);
this.comboBox4.Items.Add(Brushes.MediumPurple);
this.comboBox4.Items.Add(Brushes.White);
this.comboBox4.Items.Add(Brushes.Yellow);
this.comboBox1.Text="宋体";
this.comboBox2.Text="正常";
this.comboBox3.Text="32";
Font NewFont=new Font("宋体",32,FontStyle.Regular);
this.textBox1.Font=NewFont;
this.textBox1.ForeColor=Color.Black;
}
private void comboBox4_MeasureItem(object sender, System.Windows.Forms.MeasureItemEventArgs e)
{//设置列表项宽
e.ItemHeight=this.comboBox4.ItemHeight-2;
}
private void comboBox4_DrawItem(object sender, System.Windows.Forms.DrawItemEventArgs e)
{//绘制列表项
ComboBox MyCombox=(ComboBox)sender;
if(e.Index==-1)
return;
if(sender==null)
return;
SolidBrush MyBrush=(SolidBrush)MyCombox.Items[e.Index];
Graphics g=e.Graphics;
//如果已经进行选择,则绘制正确的背景颜色和聚集框
e.DrawBackground();
e.DrawFocusRectangle();
//绘制颜色的预览框
Rectangle MyRect=e.Bounds;
MyRect.Offset(2,2);
MyRect.Width=50;
MyRect.Height-=4;
g.DrawRectangle(new Pen(e.ForeColor),MyRect);
//获取选定颜色的相应画刷对象,并填充预览框
MyRect.Offset(1,1);
MyRect.Width-=2;
MyRect.Height-=2;
g.FillRectangle(MyBrush,MyRect);
//绘制选定颜色的名称
g.DrawString(MyBrush.Color.Name.ToString(),Font,
new SolidBrush(e.ForeColor),e.Bounds.X 60,e.Bounds.Y 1);
}
private void comboBox1_SelectedIndexChanged(object sender, System.EventArgs e)
{//改变样例文字显示风格
if(this.comboBox4.SelectedIndex>=0)
{
SolidBrush MyBrush=(SolidBrush)(this.comboBox4.SelectedItem);
this.textBox1.ForeColor=MyBrush.Color;
}
FontStyle MyFontStyle=FontStyle.Regular;
if(this.comboBox2.Text=="加粗")
MyFontStyle=FontStyle.Bold;
else if(this.comboBox2.Text=="倾斜")
MyFontStyle=FontStyle.Italic;
else if(this.comboBox2.Text=="正常")
MyFontStyle=FontStyle.Regular;
else if(this.comboBox2.Text=="删除线")
MyFontStyle=FontStyle.Strikeout;
else if(this.comboBox2.Text=="下划线")
MyFontStyle=FontStyle.Underline;
int MySize=32;
if(this.comboBox3.Text.Length>1)
{
MySize=Convert.ToInt32(this.comboBox3.Text);
}
Font NewFont=new Font(this.comboBox1.Text,MySize,MyFontStyle);
this.textBox1.Font=NewFont;
}
}
}
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