C# Create Access File

  1         /// <summary>
  2         /// ADOX objects
  3         /// 创建Access数据
  4         /// 涂聚文 
  5         /// </summary>
  6         private void createAccessTest()
  7         {
  8                 string dbName = Server.MapPath(“~”) + “\\” + Guid.NewGuid().ToString() + “.mdb”; //”D:DataBaseFirstCatalog.mdb”;
  9                 ADOX.CatalogClass catlog = new ADOX.CatalogClass();
 10                 catlog.Create(“Provider=Microsoft.Jet.OLEDB.4.0;Data Source=” + dbName + “;Jet OLEDB:Database password=123456;” + “Jet OLEDB:Engine Type=5”);
 11 
 12                 ADOX.TableClass table = new ADOX.TableClass();
 13                 table.ParentCatalog = catlog;
 14                 table.Name = “FirstTable”;
 15 
 16                 //StuId Column(AutoIncrement )
 17                 ADOX.ColumnClass col1 = new ADOX.ColumnClass();
 18                 col1.ParentCatalog = catlog;
 19                 col1.Type = ADOX.DataTypeEnum.adInteger; 
 20                 col1.Name = “StuId”;
 21                 col1.Properties[“Jet OLEDB:Allow Zero Length”].Value = false;
 22                 col1.Properties[“AutoIncrement”].Value = true;
 23                
 24                
 25                 //Name Column
 26                 ADOX.ColumnClass col2 = new ADOX.ColumnClass();
 27                 col2.ParentCatalog = catlog;
 28                 col2.Name = “StuName”;
 29                 col2.Properties[“Jet OLEDB:Allow Zero Length”].Value = false;
 30                  
 31                 //Age Column
 32                 ADOX.ColumnClass col3 = new ADOX.ColumnClass();
 33                 col3.ParentCatalog = catlog;
 34                 col3.Name = “Stuage”;
 35                 col3.Type = ADOX.DataTypeEnum.adDouble;
 36                 col3.Properties[“Jet OLEDB:Allow Zero Length”].Value = false;
 37 
 38                 // Primary
 39                 table.Keys.Append(“PrimaryKey”, ADOX.KeyTypeEnum.adKeyPrimary, “StuId”, “”, “”);
 40                 table.Columns.Append(col1, ADOX.DataTypeEnum.adInteger, 0);
 41                 table.Columns.Append(col3, ADOX.DataTypeEnum.adDouble, 666);
 42                 table.Columns.Append(col2, ADOX.DataTypeEnum.adVarChar, 25);
 43                 catlog.Tables.Append(table);
 44 
 45                 System.Runtime.InteropServices.Marshal.ReleaseComObject(table);
 46                 System.Runtime.InteropServices.Marshal.ReleaseComObject(catlog);
 47                 table = null;
 48                 catlog = null;
 49                 GC.WaitForPendingFinalizers();
 50                 GC.Collect();
 51         }
 52         /// <summary>
 53         /// 修改密码
 54         /// using ADOX;
 55         /// 涂聚文 
 56         ///引用COM:Microsoft ADO Ext. 2.8 for DDL and Security  
 57         ///添加引用:Microsoft ActioveX Data Objects 2.8 Library
 58         /// string conn = “Provider=Microsoft.Jet.OLEDB.4.0;Data Source=” + fileName + “;Jet OLEDB:Database Password=” + Pwd + “;Jet OLEDB:Engine Type=5”; 
 59         /// </summary>
 60         /// <param name=”fileName”>文件名称及地址</param>
 61         /// <param name=”newpwd”>新密码</param>
 62         /// <param name=”openpwd”>原密码</param>
 63         private void AlterAccessPassword(string fileName, string newpwd, string openpwd)
 64         {
 65             string conn = “Provider=Microsoft.Jet.OLEDB.4.0;Data Source=” + fileName + “;Jet OLEDB:Database password=” + openpwd;
 66             string sql = “ALTER DATABASE PASSWORD ” + newpwd + ” ” + openpwd;
 67             ADODB.Connection cn = new ADODB.Connection();
 68             cn.Mode = ADODB.ConnectModeEnum.adModeShareExclusive;
 69             cn.Open(conn, null, null, -1);
 70             // 执行 SQL 语句以转密码。   
 71             object num;
 72             cn.Execute(sql, out num, -1);
 73             cn.Close();
 74         }
 75         /// <summary>
 76         /// Create MDB file
 77         /// using System.IO;
 78         /// 涂聚文 
 79         /// </summary>
 80         /// <param name=”filename”>文件名称</param>
 81         public static void CreateAccessFile(string filename)
 82         {
 83 
 84             if (!Directory.Exists(AppDomain.CurrentDomain.BaseDirectory + “DataBase\\”))
 85             {
 86 
 87                 Directory.CreateDirectory(AppDomain.CurrentDomain.BaseDirectory + “DataBase\\”);
 88 
 89             }
 90             ADOX.CatalogClass cat = new CatalogClass();
 91             string str = “provider=Microsoft.Jet.OleDb.4.0;Data Source=” + AppDomain.CurrentDomain.BaseDirectory + “DataBase\\” + filename + “.mdb;”;
 92 
 93             cat.Create(str);
 94 
 95             cat = null;
 96 
 97         }
 98         /// <summary>
 99         /// 创建MDB file
100         /// using System.Runtime.InteropServices; 
101         /// 涂聚文
102         /// </summary>
103         /// <param name=”myPath”>文件地点</param>
104         /// <returns></returns>
105         public bool GenerateLogDatabase(string myPath)
106         {   
107             CatalogClass cat = new CatalogClass();
108             string strSQL;
109             string cs;
110 
111             try
112             {
113                 cs = “Provider=Microsoft.Jet.OLEDB.4.0;” +
114                      “Data Source=” + myPath + “;” +
115                      “Jet OLEDB:Engine Type=5”;
116 
117                 strSQL = “CREATE TABLE Issues (mID AUTOINCREMENT, mUser TEXT(100) NOT NULL ” +
118                          “, mError TEXT(100) NOT NULL, ” +
119                          “mDescription TEXT(100) NOT NULL, mDate DATETIME NOT NULL)”;
120 
121                 cat.Create(cs);
122 
123                 using (OleDbConnection cnn = new OleDbConnection(cs))
124                 {
125                     OleDbCommand cmd = new OleDbCommand();
126                     try
127                     {
128                         cmd.CommandText = strSQL;
129                         cmd.CommandType = CommandType.Text;
130                         cmd.Connection = cnn;
131                         cnn.Open();
132                         cmd.ExecuteNonQuery();
133                         cnn.Close();
134                         return true;
135                     }
136                     catch (Exception)
137                     {
138                         throw;
139                     }
140                     finally
141                     {
142                         cnn.Close();
143                         cmd.Dispose();
144                     }
145                 }
146             }
147             catch (Exception)
148             {
149                 throw;
150             }
151             finally
152             {   
153                 Marshal.FinalReleaseComObject(cat);
154             }
155         }

http://msdn.microsoft.com/en-us/library/ms675541(v=vs.85).aspx

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