silverlight連接SQL Server數據庫

1.和sqlite基本相同，只是連接語句略有差別

using System.Data;
using System.Data.SqlClient;
using System.Web.Configuration;

/// <summary>
        /// 查找所有數據
        /// </summary>
        /// <param name="sql"></param>
        /// <returns></returns>
        static public DataSet DBselect(string sql)
        {
            string conn;
            conn = WebConfigurationManager.ConnectionStrings["myConnectionString"].ConnectionString;
            try
            {
                using (SqlConnection cnn = new SqlConnection(conn))
                {
                    cnn.Open();
                    using (SqlTransaction trans = cnn.BeginTransaction(IsolationLevel.Serializable))
                    {
                        try
                        {
                            using (SqlCommand cmd = new SqlCommand(sql, cnn))
                            {
                                cmd.Transaction = trans;
                                using (DataSet ds = new DataSet())
                                {
                                    using (SqlDataAdapter da = new SqlDataAdapter(cmd))
                                    {
                                        da.Fill(ds);
                                        trans.Commit();
                                    }
                                    return ds;
                                }
                            }
                        }
                        catch (Exception ex)
                        {
                            trans.Rollback();
                            return new DataSet();
                            throw ex;
                        }
                        finally
                        {
                        }
                    }
                }
            }
            catch (Exception ex)
            {
                return new DataSet();
                throw ex;
            }
        }

2.在web.config中加入數據源信息

<appSettings>
    <add key="DBappSetting" value="Data Source=(localdb)/Projects;Initial Catalog=SLRiaTest;Integrated Security=True;Connect Timeout=100;Encrypt=False;TrustServerCertificate=False"/>
  </appSettings>
  <connectionStrings>
    <add name="myConnectionString" connectionString="Data Source=(LocalDB)\v11.0;AttachDbFilename=C:\Users\User\Documents\database.mdf;Integrated Security=True;Connect Timeout=30"/>
  </connectionStrings>

3.在SQL server 中新建數據庫信息，查看屬性Data Source 替換connectionString即可