silverlight数据库应用程序开发

该解决方案使用的是"silverlight导航应用程序+Oracle数据库+WebService服务”

新建silverlight项目GH，同时会自动添加一个GH.Web,在GH.Web中添加"web 服务"，同时需要添加两个XML文件用于解决跨域问题：

第一个XML文件：clientaccesspolicy.xml：

<?xml version="1.0" encoding="utf-8" ?>
<access-policy>
  <cross-domain-access>
    <policy>
      <allow-from http-request-headers="*">
        <domain uri="*"/>
      </allow-from>
      <grant-to>
        <resource path="/" include-subpaths="true"/>
      </grant-to>
    </policy>
  </cross-domain-access>
</access-policy>

第二个XML文件：crossdomain.xml:

<?xml version="1.0"?>
<!DOCTYPE cross-domain-policy SYSTEM "http://www.macromedia.com/xml/dtds/cross-domain-policy.dtd">
<cross-domain-policy>
<allow-access-from domain="*" />
<allow-http-request-headers-from domain="*" headers="*" />
</cross-domain-policy>

在GH中添加一个文件夹：Model，用于存放实体类，然后添加"服务引用"：GH_ServiceReference

web服务代码：

  1 #region 用户管理
  2         [WebMethod]
  3         public string getUsers()
  4         {
  5             try
  6             {
  7                 OracleConnection orclConn = new OracleConnection(ConfigurationManager.ConnectionStrings["ConString"].ConnectionString);
  8                 orclConn.Open();
  9                 OracleDataAdapter orclAdapter = new OracleDataAdapter("select U.ID,U.XM,U.SSBMMC,ZD.MS,R.JSMC from SYS_USER U,SYS_ZD ZD,SYS_ROLE R WHERE U.SSQY=ZD.ID AND U.ROLEDM=R.ID AND ZD.LXID=1 order by U.ID ", orclConn);
 10                 DataSet ds = new DataSet();
 11                 orclAdapter.Fill(ds);
 12 
 13                 int num = 1;
 14                 StringBuilder builder = new StringBuilder();
 15                 builder.Append("<?xml version=\"1.0\" encoding=\"utf-8\" ?>");
 16                 builder.Append("<UserInfo>");
 17                 foreach (DataRow row in ds.Tables[0].Rows)
 18                 {                    
 19                     builder.Append("<user>");
 20                     builder.Append("<number>");
 21                     builder.Append(num.ToString());
 22                     builder.Append("</number>");
 23                     builder.Append("<userID>");
 24                     builder.Append(row[0].ToString());
 25                     builder.Append("</userID>");
 26                     builder.Append("<userName>");
 27                     builder.Append(row[1].ToString());
 28                     builder.Append("</userName>");
 29                     builder.Append("<userDep>");
 30                     builder.Append(row[2].ToString());
 31                     builder.Append("</userDep>");
 32                     builder.Append("<userArea>");
 33                     builder.Append(row[3].ToString());
 34                     builder.Append("</userArea>");
 35                     builder.Append("<userRole>");
 36                     builder.Append(row[4].ToString());
 37                     builder.Append("</userRole>");
 38                     builder.Append("</user>");
 39                     num++;
 40                 }
 41                 builder.Append("</UserInfo>");
 42                 orclConn.Close();
 43                 return builder.ToString();
 44             }
 45             catch (Exception ex)
 46             {
 47                 return string.Empty;
 48             }
 49         }
 50         //删除用户
 51         [WebMethod]
 52         public int DelUser(int uID)
 53         {
 54             string sql = "delete from SYS_USER where ID="+uID.ToString();
 55             return OperaData(sql);
 56         }
 57 
 58 
 59         [WebMethod]
 60         public int InsertUser(string uName,string dep,string areaid,string roleid)
 61         {
 62             string sql = "insert into SYS_USER(XM,SSBMMC,SSQY,ROLEDM) values('" + uName + "','" + dep + "','" + areaid + "','" + roleid + "')";
 63             return OperaData(sql);
 64         }
 65         [WebMethod]
 66         public int UptUser(string s)
 67         {
 68             string [] val=s.Split('|');
 69             string sql = "update SYS_USER set SSBMMC='" + val[0] + "',SSQY='" + val[1] + "',ROLEDM='" + val[2] + "' where ID='" + val[3] + "'";
 70             return OperaData(sql);
 71         }
 72 
 73         /// <summary>
 74         /// 增、删、改
 75         /// </summary>
 76         /// <param name="sql"></param>
 77         /// <returns></returns>
 78         private int OperaData(string sql)
 79         {
 80             OracleConnection orclConn = new OracleConnection(ConfigurationManager.ConnectionStrings["ConString"].ConnectionString);
 81             orclConn.Open();
 82             OracleCommand orclCmd = new OracleCommand(sql, orclConn);
 83             int result = orclCmd.ExecuteNonQuery();
 84             orclConn.Close();
 85             return result;
 86         }
 87 
 88 
 89         /// <summary>
 90         /// 获取所属区域
 91         /// </summary>
 92         [WebMethod]
 93         public string GetArea()
 94         {
 95             try
 96             {
 97                 OracleConnection orclConn = new OracleConnection(ConfigurationManager.ConnectionStrings["ConString"].ConnectionString);
 98                 orclConn.Open();
 99                 OracleDataAdapter orclAdapter = new OracleDataAdapter("select ZD.ID,ZD.MS from SYS_ZD ZD WHERE ZD.LXID=1", orclConn);
100                 DataSet ds = new DataSet();
101                 orclAdapter.Fill(ds);
102 
103                 StringBuilder builder = new StringBuilder();
104                 builder.Append("<?xml version=\"1.0\" encoding=\"utf-8\"?>");
105                 builder.Append("<areaInfo>");
106                 foreach (DataRow row in ds.Tables[0].Rows)
107                 {
108                     builder.Append("<area>");
109                     builder.Append("<id>");
110                     builder.Append(row[0].ToString());
111                     builder.Append("</id>");
112                     builder.Append("<ms>");
113                     builder.Append(row[1].ToString());
114                     builder.Append("</ms>");
115                     builder.Append("</area>");
116                 }
117                 builder.Append("</areaInfo>");
118                 orclConn.Close();
119                 return builder.ToString();
120             }
121             catch (Exception e)
122             {
123                 return string.Empty;
124             }
125         }
126 
127         /// <summary>
128         /// 获取角色
129         /// </summary>
130         [WebMethod]
131         public string GetRole()
132         {
133             try
134             {
135                 OracleConnection orclConn = new OracleConnection(ConfigurationManager.ConnectionStrings["ConString"].ConnectionString);
136                 orclConn.Open();
137                 OracleDataAdapter orclAdapter = new OracleDataAdapter("select ROLE.ID,ROLE.JSMC from SYS_ROLE ROLE", orclConn);
138                 DataSet ds = new DataSet();
139                 orclAdapter.Fill(ds);
140 
141                 StringBuilder builder = new StringBuilder();
142                 builder.Append("<?xml version=\"1.0\" encoding=\"utf-8\"?>");
143                 builder.Append("<roleInfo>");
144                 foreach (DataRow row in ds.Tables[0].Rows)
145                 {
146                     builder.Append("<role>");
147                     builder.Append("<id>");
148                     builder.Append(row[0].ToString());
149                     builder.Append("</id>");
150                     builder.Append("<roleName>");
151                     builder.Append(row[1].ToString());
152                     builder.Append("</roleName>");
153                     builder.Append("</role>");
154                 }
155                 builder.Append("</roleInfo>");
156                 orclConn.Close();
157                 return builder.ToString();
158             }
159             catch (Exception e)
160             {
161                 return string.Empty;
162             }
163         }
164         #endregion

主页面视图：

主页面xmal代码：

  1 public partial class GH_User : Page
  2     {
  3         GH_ServiceReference.GH_serviceSoapClient client = new GH.GH_ServiceReference.GH_serviceSoapClient();
  4         public GH_User()
  5         {
  6             InitializeComponent();
  7             GH_ServiceReference.GH_serviceSoapClient client = new GH.GH_ServiceReference.GH_serviceSoapClient();
  8             client.getUsersCompleted += new EventHandler<GH.GH_ServiceReference.getUsersCompletedEventArgs>(OnGetUsersCompleted);
  9             client.getUsersAsync();            
 10         }
 11        
 12         /// <summary>
 13         /// 获取用户信息
 14         /// </summary>
 15         private void OnGetUsersCompleted(object sender, GH.GH_ServiceReference.getUsersCompletedEventArgs e)
 16         {
 17             if (e.Error != null)
 18             {
 19                 return;
 20             }
 21             XmlReader reader = XmlReader.Create(new StringReader(e.Result.ToString()));
 22             XDocument doc = XDocument.Load(reader);
 23             var info = from items in doc.Descendants("user")
 24                        select new gh_UserModel()
 25                        {
 26                            Num = (int)items.Element("number"),
 27                            ID = (string)items.Element("userID"),
 28                            Name = (string)items.Element("userName"),
 29                            DepName = (string)items.Element("userDep"),
 30                            Area = (string)items.Element("userArea"),
 31                            RoleID = (string)items.Element("userRole")
 32                        };
 33             //分页
 34             PagedCollectionView view = new PagedCollectionView(info.ToList());
 35             dataGrid1.ItemsSource = view;
 36             dataPager1.Source = view;
 37             dataPager1.PageSize = 5;
 38         }
 39 
 40         //删除用户
 41         private void bt_del_Click(object sender, RoutedEventArgs e)
 42         {
 43             client.DelUserCompleted += new EventHandler<GH_ServiceReference.DelUserCompletedEventArgs>(client_DelUserCompleted);
 44             client.DelUserAsync(Convert.ToInt32((sender as Button).Tag.ToString()));
 45         }
 46         void client_DelUserCompleted(object sender, GH_ServiceReference.DelUserCompletedEventArgs e)
 47         {
 48             if (e.Error == null)
 49             {
 50                 MessageBox.Show("删除成功！");
 51                 //重新绑定
 52                 client.getUsersCompleted += new EventHandler<GH_ServiceReference.getUsersCompletedEventArgs>(OnGetUsersCompleted);
 53                 client.getUsersAsync();
 54             }
 55             else
 56             {
 57                 MessageBox.Show(e.Error.ToString());
 58             }
 59         }
 60 
 61         private void Page_Loaded(object sender, RoutedEventArgs e)
 62         {
 63             client.GetAreaCompleted += new EventHandler<GH_ServiceReference.GetAreaCompletedEventArgs>(client_GetAreaCompleted);
 64             client.GetAreaAsync();
 65             client.GetRoleCompleted += new EventHandler<GH_ServiceReference.GetRoleCompletedEventArgs>(client_GetRoleCompleted);
 66             client.GetRoleAsync();
 67         }
 68 
 69         void client_GetRoleCompleted(object sender, GH_ServiceReference.GetRoleCompletedEventArgs e)
 70         {
 71             if (e.Error == null)
 72             {
 73                 XmlReader reader = XmlReader.Create(new StringReader(e.Result.ToString()));
 74                 XDocument doc = XDocument.Load(reader);
 75                 var role = from items in doc.Descendants("role")
 76                            select new gh_RoleModel()
 77                            {
 78                                RoleID=(string)items.Element("id"),
 79                                RoleName = (string)items.Element("roleName")
 80                            };
 81 
 82                 comboBox_role.ItemsSource = role.ToList();
 83                 comboBox_role.DisplayMemberPath = "RoleName";
 84                 comboBox_role.UpdateLayout();
 85                 comboBox_role.SelectedIndex = 0;
 86             }
 87         }
 88 
 89         void client_GetAreaCompleted(object sender, GH_ServiceReference.GetAreaCompletedEventArgs e)
 90         {
 91             if (e.Error == null)
 92             {
 93                 XmlReader reader = XmlReader.Create(new StringReader(e.Result.ToString()));
 94                 XDocument xdoc = XDocument.Load(reader);
 95                 var area = from items in xdoc.Descendants("area")
 96                            select new gb_ZDModel()
 97                            {
 98                                ID = (string)items.Element("id"),
 99                                Des = (string)items.Element("ms")
100                            };
101                 comboBox_area.ItemsSource = area.ToList();
102                 comboBox_area.DisplayMemberPath = "Des";
103                 comboBox_area.UpdateLayout();
104                 comboBox_area.SelectedIndex = 0;
105             }
106         }
107         //保存用户
108         private void btn_Sava_Click(object sender, RoutedEventArgs e)
109         {
110             if (string.IsNullOrEmpty(textBox1.Text))
111             {
112                 MessageBox.Show("请输入用户名");
113                 return;
114             }
115             if (string.IsNullOrEmpty(textBox2.Text))
116             {
117                 MessageBox.Show("请输入所属部门");
118                 return;
119             }
120             var areaname = comboBox_area.SelectedItem;
121             string areaid = ((gb_ZDModel)areaname).ID;
122 
123             var rolename = comboBox_role.SelectedItem;
124             string roleid = ((gh_RoleModel)rolename).RoleID;
125 
126             client.InsertUserCompleted += new EventHandler<GH_ServiceReference.InsertUserCompletedEventArgs>(client_InsertUserCompleted);
127             client.InsertUserAsync(textBox1.Text, textBox2.Text, areaid, roleid);
128         }
129 
130         void client_InsertUserCompleted(object sender, GH_ServiceReference.InsertUserCompletedEventArgs e)
131         {
132             if (e.Error == null)
133             {
134                 client.getUsersCompleted += new EventHandler<GH_ServiceReference.getUsersCompletedEventArgs>(OnGetUsersCompleted);
135                 client.getUsersAsync();
136                 MessageBox.Show("用户添加完毕.");
137                 textBox1.Text = "";
138                 textBox2.Text = "";
139                 comboBox_area.SelectedIndex = 0;
140                 comboBox_role.SelectedIndex = 0;
141             }
142             else
143             {
144                 MessageBox.Show(e.Error.ToString());
145             }
146         }
147 
148         gh_User_Child user_child;
149         //修改
150         private void btn_upt_Click(object sender, RoutedEventArgs e)
151         {
152             gh_UserModel row = (gh_UserModel)dataGrid1.SelectedItem;
153 
154             user_child = new gh_User_Child(row.ID, row.Name, row.DepName, row.Area, row.RoleID);
155             user_child.Title = "用户信息";            
156             user_child.Show();
157             user_child.Closed += new EventHandler(user_child_Closed);
158         }
159 
160         void user_child_Closed(object sender, EventArgs e)
161         {
162             if (user_child.DialogResult == true)
163             {
164                 string dep = user_child.textBox2.Text;
165                 string area = ((gb_ZDModel)user_child.comboBox_area.SelectedItem).ID;
166                 string role = ((gh_RoleModel)user_child.comboBox_role.SelectedItem).RoleID;
167                 string uID=user_child.OKButton.Tag.ToString();
168                 client.UptUserCompleted += new EventHandler<GH_ServiceReference.UptUserCompletedEventArgs>(client_UptUserCompleted);
169                 string s = dep +"|"+ area+"|" + role +"|"+ uID;
170                 client.UptUserAsync(s);
171             }
172         }
173 
174         void client_UptUserCompleted(object sender, GH_ServiceReference.UptUserCompletedEventArgs e)
175         {
176             if (e.Error == null)
177             {
178                 MessageBox.Show("更新成功");
179                 client.getUsersCompleted += new EventHandler<GH_ServiceReference.getUsersCompletedEventArgs>(OnGetUsersCompleted);
180                 client.getUsersAsync();
181             }
182         }

子窗体视图：

子窗体代码：

 1 GH_ServiceReference.GH_serviceSoapClient client = new GH.GH_ServiceReference.GH_serviceSoapClient();
 2         public gh_User_Child()
 3         {
 4             InitializeComponent();
 5         }
 6         
 7         public gh_User_Child(string id, string name, string dep, string area, string role)
 8         {
 9             InitializeComponent();
10             
11             client.GetAreaCompleted += new EventHandler<GH_ServiceReference.GetAreaCompletedEventArgs>(client_GetAreaCompleted);
12             client.GetAreaAsync();
13             client.GetRoleCompleted += new EventHandler<GH_ServiceReference.GetRoleCompletedEventArgs>(client_GetRoleCompleted);
14             client.GetRoleAsync();
15 
16             this.OKButton.Tag = id;
17             textBox1.Text = name;
18             textBox2.Text = dep;
19             comboBox_area.SelectedValue = area;  //无效
20             comboBox_area.SelectedValue = role;
21         }
22 
23         void client_GetRoleCompleted(object sender, GH_ServiceReference.GetRoleCompletedEventArgs e)
24         {
25             if (e.Error == null)
26             {
27                 XmlReader reader = XmlReader.Create(new StringReader(e.Result.ToString()));
28                 XDocument doc = XDocument.Load(reader);
29                 var role = from items in doc.Descendants("role")
30                            select new gh_RoleModel()
31                            {
32                                RoleID = (string)items.Element("id"),
33                                RoleName = (string)items.Element("roleName")
34                            };
35 
36                 comboBox_role.ItemsSource = role.ToList();
37                 comboBox_role.DisplayMemberPath = "RoleName";
38                 comboBox_role.UpdateLayout();
39                 comboBox_role.SelectedIndex = 0;
40             }
41         }
42 
43         void client_GetAreaCompleted(object sender, GH_ServiceReference.GetAreaCompletedEventArgs e)
44         {
45             if (e.Error == null)
46             {
47                 XmlReader reader = XmlReader.Create(new StringReader(e.Result.ToString()));
48                 XDocument xdoc = XDocument.Load(reader);
49                 var area = from items in xdoc.Descendants("area")
50                            select new gb_ZDModel()
51                            {
52                                ID = (string)items.Element("id"),
53                                Des = (string)items.Element("ms")
54                            };
55                 comboBox_area.ItemsSource = area.ToList();
56                 comboBox_area.DisplayMemberPath = "Des";
57                 comboBox_area.UpdateLayout();
58                 comboBox_area.SelectedIndex = 0;
59             }
60         }
61 
62         private void OKButton_Click(object sender, RoutedEventArgs e)
63         {
64             this.DialogResult = true;
65         }
66         private void CancelButton_Click(object sender, RoutedEventArgs e)
67         {
68             this.DialogResult = false;
69         }