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让DropDownList绑定系统颜色

2006-03-25 08:25  Clingingboy  阅读(3756)  评论(14)    收藏  举报
昨天晚上看到http://www.cnblogs.com/overred/archive/2006/03/24/357833.html的效果,感觉挺好看的.
我结合枚举做了一下.可以显示系统的全部颜色.


看看代码

 1<%@ Page Language="C#" UICulture="zh-CHS" Culture="zh-CN" %>
 2
 3<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
 4
 5<script runat="server">
 6    protected void Page_Load(object sender, EventArgs e)
 7    {
 8        if (!IsPostBack)
 9        {
10            BindText();
11        }
12    }
13    void BindText()
14    {
15        //绑定颜色
16        string[] colorArray = Enum.GetNames(typeof(System.Drawing.KnownColor));
17        
18        foreach(string color in colorArray)
19        {
20            ListItem item = new ListItem(color);
21            item.Attributes.Add("style", "color:" + color);
22          
23            txt_color.Items.Add(item);
24        }
25        //绑定字体
26        System.Drawing.Text.InstalledFontCollection font;
27        font = new System.Drawing.Text.InstalledFontCollection();
28        foreach (System.Drawing.FontFamily family in font.Families)
29        {
30            txt_Font.Items.Add(family.Name);
31        }
32        //字体大小
33        string[] sizeArray = Enum.GetNames(typeof(System.Web.UI.WebControls.FontSize));
34        
35        listsize.DataSource = sizeArray;
36        listsize.SelectedIndex = -1;
37        listsize.DataBind();
38    }
39    protected void Button1_Click(object sender, EventArgs e)
40    {
41        show.Text = txt.Text;
42        show.ForeColor = System.Drawing.Color.FromName(txt_color.SelectedItem.Text);
43        show.Font.Name = txt_Font.SelectedItem.Text;
44        if (listsize.SelectedIndex>0)
45        {
46            show.Font.Size = FontUnit.Parse(listsize.SelectedItem.Text);
47        }
48        else
49        {
50            show.Font.Size = FontUnit.Point(Int32.Parse(size.Text));
51        }
52    }
53   
54    
55</script>
56<html xmlns="http://www.w3.org/1999/xhtml">
57<head runat="server">
58    <title>无标题页</title>
59</head>
60<body>
61    <form id="form1" runat="server">
62        <div>
63            选择字体颜色：<asp:DropDownList ID="txt_color" runat="server">
64            </asp:DropDownList><br />
65            <br />
66            选择系统字体：<asp:DropDownList ID="txt_Font" runat="server">
67            </asp:DropDownList><br />
68            <br />
69            选择字体大小：<asp:TextBox ID="size" runat="server"></asp:TextBox>
70            &nbsp; &nbsp;<asp:RadioButtonList ID="listsize" runat="server" RepeatColumns="3" RepeatDirection="Horizontal">
71            </asp:RadioButtonList>
72            &nbsp;&nbsp;
73            <br />
74            <br />
75            请输入文字:
76            <asp:TextBox ID="txt" runat="server"></asp:TextBox><br />
77            <br />
78            <asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="确定" /><br />
79            <br />
80            <asp:Label ID="show" runat="server"></asp:Label></div>
81    </form>
82</body>
83</html>
84