C#中Web.config文件的读取与写入

 1  //修改栏目订单的颜色
 2          private void btnfunColor_Click(object sender, EventArgs e)
 3         {
 4             ColorDialog fontcolor = new ColorDialog();
 5             if (fontcolor.ShowDialog() == DialogResult.OK)
 6             {
 7                 strColors[Convert.ToInt32(cmbFunInfo.SelectedValue)] = fontcolor.Color;
 8                 int argb = fontcolor.Color.ToArgb();
 9                 Color.FromArgb(argb);
10               //写入文件
11                  Configuration config = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);
12                 AppSettingsSection app = config.AppSettings;
13                 app.Settings.Add(cmbFunInfo.SelectedValue.ToString(), argb.ToString());
14                 config.Save(ConfigurationSaveMode.Modified);
15             }
16         }

 1 /// 
   
 2         /// 读取指定key的值   
 3         ///    
 4         ///    
 5         ///    
 6         public static string GetValue(string key)
 7         {
 8             System.Configuration.Configuration config = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);
 9 
10             if (config.AppSettings.Settings[key] == null)
11                 return "";
12             else
13                 return config.AppSettings.Settings[key].Value;
14         }

 1         //设定颜色
 2         private void SetDGVfontColors()
 3         {
 4             try
 5             {
 6                 //循环遍历设定行的颜色
 7                 for (int i = 0; i < dgvOrders.Rows.Count; i++)
 8                 {
 9                     DataGridViewRow DGVRow = dgvOrders.Rows[i];
10                     if (DGVRow != null)
11                     {
12                         switch (DGVRow.Cells["栏目名称"].Value as string)
13                         {
14                             case "中国移动":
15                                 DGVRow.DefaultCellStyle.ForeColor = (Color)new ColorConverter().ConvertFrom(GetValue("1"));  //字符串向颜色的转换
16                                 ;
17                                 break;
18                             case "中国联通":
19                                 DGVRow.DefaultCellStyle.ForeColor = (Color)new ColorConverter().ConvertFrom(GetValue("2"));
20                                 break;
21                             case "中国电信":
22                                 DGVRow.DefaultCellStyle.ForeColor = (Color)new ColorConverter().ConvertFrom(GetValue("3"));
23                                 break;
24                             case "全国缴费":
25                                 DGVRow.DefaultCellStyle.ForeColor = (Color)new ColorConverter().ConvertFrom(GetValue("4"));
26                                 break;
27                             case "联通固话":
28                                 DGVRow.DefaultCellStyle.ForeColor = (Color)new ColorConverter().ConvertFrom(GetValue("5"));
29                                 break;
30                             case "电信固话":
31                                 DGVRow.DefaultCellStyle.ForeColor = (Color)new ColorConverter().ConvertFrom(GetValue("6"));
32                                 break;
33                             case "QQ币充值":
34                                 DGVRow.DefaultCellStyle.ForeColor = (Color)new ColorConverter().ConvertFrom(GetValue("10"));
35                                 break;
36                             case "全国游戏[直冲]":
37                                 DGVRow.DefaultCellStyle.ForeColor = (Color)new ColorConverter().ConvertFrom(GetValue("11"));
38                                 break;
39                             case "全国游戏[卡密]":
40                                 DGVRow.DefaultCellStyle.ForeColor = (Color)new ColorConverter().ConvertFrom(GetValue("11"));
41                                 break;
42                             case "中国电力":
43                                 DGVRow.DefaultCellStyle.ForeColor = (Color)new ColorConverter().ConvertFrom(GetValue("12"));
44                                 break;
45                             case "中国燃气":
46                                 DGVRow.DefaultCellStyle.ForeColor = (Color)new ColorConverter().ConvertFrom(GetValue("13"));
47                                 break;
48                             case "中国水费":
49                                 DGVRow.DefaultCellStyle.ForeColor = (Color)new ColorConverter().ConvertFrom(GetValue("14"));
50                                 break;
51                             case "业务办理":
52                                 DGVRow.DefaultCellStyle.ForeColor = (Color)new ColorConverter().ConvertFrom(GetValue("18"));
53                                 break;
54                             case "QQ币充值2":
55                                 DGVRow.DefaultCellStyle.ForeColor = (Color)new ColorConverter().ConvertFrom(GetValue("19"));
56                                 break;
57                             case "全国游戏2":
58                                 DGVRow.DefaultCellStyle.ForeColor = (Color)new ColorConverter().ConvertFrom(GetValue("20"));
59                                 break;
60                             default:
61                                 DGVRow.DefaultCellStyle.ForeColor = Color.Black;
62                                 break;
63                         }
64                     }
65                 }
66             }
67             catch
68             {
69                 dgvOrders.ForeColor = Color.Black;
70             }
71         }