試圖從數據庫讀取數據/在c上顯示錶＃

Question

我是一種新的SQL Server/C＃。

我的老師以爲我應該使用C＃使用SqlConnection和SqlCommand將數據寫入數據庫。

我有一個朋友希望我幫她做她的項目，但我不知道如何從數據庫獲取數據或如何從數據庫中顯示錶格。

希望有人發現這個問題有用，特別是那裏的初學者。 :)

另外，我怎麼能得到一個特定的元素在一排？

Answer 1

如果你使用Windows窗體那麼也許你可以使用DataGridView控制 - 看到這個很簡單的教程，讓你開始：http://www.dotnetperls.com/datagridview-tutorial

同樣，對於Web應用程序，你可以使用GridView控制 - 參見MSDN的各種例子：http://msdn.microsoft.com/en-us/library/aa479339.aspx

Answer 2

使用相同的sqlConnection和SqlCommand和SqlReader對象（Classes）通過Select查詢從數據庫獲取數據，如果需要，可以通過數據網格顯示它們。只需搜索SO或谷歌。 MSDN也有很好的例子。

Answer 3

使用此（搜索&與System.Data.SqlClient的替換System.Data.OleDB）：

public override System.Data.DataTable GetDataTable(string strSQL) 
    { 
     System.Data.DataTable dt = new System.Data.DataTable(); 

     using (System.Data.IDbConnection idb = GetConnection()) 
     { 

      lock (idb) 
      { 
       try 
       { 

        using (System.Data.OleDb.OleDbDataAdapter daQueryTable = new System.Data.OleDb.OleDbDataAdapter(strSQL, (System.Data.OleDb.OleDbConnection) idb)) 
        { 
         daQueryTable.Fill(dt); 
        } // End Using daQueryTable 
       } // End Try 
       catch (Exception ex) 
       { 
        Log("cOleDB.GetDataTable(string strSQL)", ex, strSQL); 
       } // End Catch 
       finally 
       { 
        if (idb.State != System.Data.ConnectionState.Closed) 
         idb.Close(); 
       } // End Finally 

      } // End Lock idb 

     } // End Using idb 

     return dt; 
    } // End Function GetDataTable 





    public System.Data.IDbConnection GetConnection() 
    { 
     System.Data.OleDb.OleDbConnection oledbc= new System.Data.OleDb.OleDbConnection(m_ConnectionString.ConnectionString); 

     return oledbc; 
    } 

對於有效CON nection字符串，請訪問： http://www.connectionstrings.com/

這裏有一個VBish版本：

Namespace SQL 


    Public Class MS_SQL 

     Public Const strDefaultCatalog As String = "AdventureWorks" 


     Public Shared Function GetConnectionString(Optional ByRef strIntitialCatalog As String = strDefaultCatalog) As String 

      Return strConnectionString 
     End Function ' GetConnectionString 


     Public Shared Function GetConnection(ByVal strConnectionString As String) 
      'GetConnectionString(strDataBaseName) 

      Return New System.Data.SqlClient.SqlConnection(strConnectionString) 
     End Function 


     Public Shared Function GetConnection() As System.Data.IDbConnection 
      Static strConnectionString As String = GetConnectionString() 

      Return New System.Data.SqlClient.SqlConnection(strConnectionString) 
     End Function ' GetConnection 


     Public Shared Function TestConnection() As Boolean 
      Dim bExceptionOccured As Boolean = False 

      Using dbConnection As System.Data.IDbConnection = GetConnection() 

       SyncLock dbConnection 

        Try 
         'Console.WriteLine("Connection timout: " + dbConnection.ConnectionTimeout.ToString) 
         If Not dbConnection.State = ConnectionState.Open Then 
          dbConnection.Open() 
         End If 
        Catch ex As Exception 
         bExceptionOccured = True 
         'Log.File.WriteText("Error opening the database connection. Check your connection string and password as well as networking and permissions.") 
         Log.File.WriteText("Fehler beim Öffnen der Datenbankverbindung. Bitte überprüfen Sie den Verbindungsstring und das Passwort, sowie das Netzwerk und Berechtigungen.") 
         'Log.File.WriteText("Exception message:") 
         Log.File.WriteText("Fehlerbeschreibung:") 
         Console.WriteLine(ex.Message) 
         ErrorHandling.Exception.iExitCode = ErrorHandling.Exception.ExitCode.EXIT_DATABASE_NOCONNECT 
         'MsgBox("Connection couldn't be opened.", MsgBoxStyle.Critical) 
         ErrorHandling.Exception.TerminateWithErrorcode(ErrorHandling.Exception.ExitCode.EXIT_DATABASE_NOCONNECT) 
        Finally 
         If Not dbConnection.State = ConnectionState.Closed Then 
          dbConnection.Close() 
         End If 
        End Try 

       End SyncLock ' dbConnection 

      End Using ' dbConnection 

      Return bExceptionOccured 
     End Function ' TestConnection 


     Public Shared Function GetEmbeddedSQLscript(ByVal strSearchedFileName As String) As String 
      Dim ass As System.Reflection.Assembly = System.Reflection.Assembly.GetAssembly(GetType(MS_SQL)) 

      If String.IsNullOrEmpty(strSearchedFileName) Then 
       Throw New ArgumentNullException("strSearchedFileName") 
      End If 

      Dim strFoundRessourceName As String = Nothing 
      For Each strEmbeddedRessourceName As String In ass.GetManifestResourceNames() 
       If Not String.IsNullOrEmpty(strEmbeddedRessourceName) Then 

        If strEmbeddedRessourceName.EndsWith(strSearchedFileName, System.StringComparison.OrdinalIgnoreCase) Then 
         strFoundRessourceName = strEmbeddedRessourceName 
         Exit For 
        End If 
        ' Console.WriteLine(strEmbeddedRessourceName) 
       End If 
      Next 

      If String.IsNullOrEmpty(strFoundRessourceName) Then 
       Throw New Exception("The script """ + strSearchedFileName + """ is not present in the embedded ressources section.") 
      Else 
       'Console.WriteLine(strFoundRessourceName) 
      End If 

      Dim strSQLscript As String = Nothing 
      Try 
       Using strmRessource As System.IO.Stream = ass.GetManifestResourceStream(strFoundRessourceName) 

        Using srRessourceReader As New System.IO.StreamReader(strmRessource) 
         strSQLscript = srRessourceReader.ReadToEnd() 
         srRessourceReader.Close() 
        End Using 

        strmRessource.Close() 
       End Using 
      Catch ex As Exception 
       Throw 
      End Try 

      Return strSQLscript 
     End Function ' GetEmbeddedSQLscript 


     Public Class cParameterStore 

      Public Class cParameter 
       Public SqlDbType As System.Data.SqlDbType = Nothing 
       Protected m_Value As Object = Nothing 


       Public Sub New(ByVal dbt As System.Data.SqlDbType, ByVal objValue As Object) 
        Me.SqlDbType = dbt 
        Me.Value = objValue 
       End Sub ' Constructor 


       Public Property Value() As Object 

        Get 
         Return Me.m_Value 
        End Get 

        Set(ByVal objValue As Object) 
         If objValue IsNot Nothing Then 
          Me.m_Value = objValue 
         Else 
          Me.m_Value = System.DBNull.Value 
         End If 
        End Set 

       End Property ' Value 

      End Class ' cParameter 


      Public m_dictParameters As Dictionary(Of String, cParameter) = Nothing 


      Sub New() 
       Me.m_dictParameters = New Dictionary(Of String, cParameter) 
      End Sub ' Constructor 


      Public ReadOnly Property Parameters() As Dictionary(Of String, cParameter) 

       Get 
        Return Me.m_dictParameters 
       End Get 

      End Property ' Parameters 


      Public Sub Add(ByVal strKey As String, ByVal dbt As System.Data.SqlDbType, ByVal objValue As Object) 
       If String.IsNullOrEmpty(strKey) Then 
        Throw New ArgumentNullException("strKey") 
       End If 

       If dbt = Nothing Then 
        Throw New ArgumentNullException("dbt") 
       End If 

       If Not strKey.StartsWith("@") Then 
        strKey = "@" + strKey 
       End If 

       m_dictParameters.Add(strKey, New cParameter(dbt, objValue)) 
      End Sub ' Add 

     End Class ' cParameterStore 


     Public Shared Function GetNewParamterStore() As cParameterStore 
      Return New cParameterStore() 
     End Function ' GetNewParamterStore 



     Public Shared Sub ExecuteSQLreader(ByRef strSQL As String, ByRef strWhich As String, ByRef alSQLqueryReturnList As ArrayList) 
      'Dim alSQLqueryReturnList As ArrayList 
      'alSQLqueryReturnList = New ArrayList 

      Using dbConn As System.Data.IDbConnection = GetConnection() 

       SyncLock dbConn 

        Using sqlCMD As System.Data.IDbCommand = dbConn.CreateCommand() 

         Try 
          sqlCMD.CommandText = strSQL 

          If Not dbConn.State = System.Data.ConnectionState.Open Then 
           dbConn.Open() 
          End If 

          Using sdrSQLReader As System.Data.IDataReader = sqlCMD.ExecuteReader(System.Data.CommandBehavior.CloseConnection) 
           While sdrSQLReader.Read() 
            alSQLqueryReturnList.Add(sdrSQLReader.Item(strWhich).ToString()) 
           End While 
          End Using 

         Catch QueryError As Exception 
          'Log.File.WriteText(String.Format("Exception in ExecuteSQLreader: {0}{1}{2}", QueryError.Message, vbCrLf, strSQL)) 
          Log.File.WriteText(String.Format("Fehler in ExecuteSQLreader: {0}{1}{2}", QueryError.Message, vbCrLf, strSQL)) 
         Finally 
          If Not dbConn.State = System.Data.ConnectionState.Closed Then 
           dbConn.Close() 
          End If 
         End Try 

        End Using ' sqlCMD 

       End SyncLock ' dbConn 

      End Using ' dbConn 

     End Sub ' ExecuteSQLreader 


     Public Shared Function ExecuteSQLstmtScalarWithParameter(ByRef strSQL As String, ByVal ParameterStore As cParameterStore) As String 
      Dim strReturnValue As String = "" 

      Using sqldbConnection As System.Data.IDbConnection = GetConnection() 

       SyncLock sqldbConnection 

        Using sqlCMD As System.Data.SqlClient.SqlCommand = sqldbConnection.CreateCommand() 
         sqlCMD.CommandText = strSQL 

         Try 
          'sqlCMD.Parameters.Add("@mandant", System.Data.SqlDbType.Int).Value = 5 
          For Each kvpThisParameter As KeyValuePair(Of String, cParameterStore.cParameter) In ParameterStore.Parameters 
           sqlCMD.Parameters.Add(kvpThisParameter.Key, kvpThisParameter.Value.SqlDbType).Value = kvpThisParameter.Value.Value 
          Next 


          ' Open the connection 
          If Not sqldbConnection.State = ConnectionState.Open Then 
           sqldbConnection.Open() 
          End If 

          Dim objResult As Object = sqlCMD.ExecuteScalar() 

          If objResult IsNot Nothing Then 
           strReturnValue = objResult.ToString() 
          Else 
           strReturnValue = Nothing 
          End If 

          objResult = Nothing 
         Catch ex As System.Data.SqlClient.SqlException 
          'Log.File.WriteText(String.Format("Exception executing ExecuteSQLstmtScalarWithParameter: {0}", ex.Message.ToString() + vbCrLf + "strSQL=" + strSQL)) 
          Log.File.WriteText(String.Format("Fehler beim Ausführen von ExecuteSQLstmtScalarWithParameter: {0}", ex.Message.ToString() + vbCrLf + "strSQL=" + strSQL)) 
          ' No Error notification when silent 
         Finally 

          ' Open the connection 
          If Not sqldbConnection.State = ConnectionState.Closed Then 
           sqldbConnection.Close() 
          End If 

          sqlCMD.Dispose() 
          sqldbConnection.Dispose() 
         End Try 

        End Using ' sqlCMD 

       End SyncLock ' sqldbConnection 

      End Using ' sqldbConnection 

      Return strReturnValue 
     End Function ' ExecuteSQLstmtScalarWithParameter 


     Public Shared Function ExecuteSQLstmtScalar(ByRef strSQL As String) As String 
      Dim strReturnValue As String = "" 

      Using sqldbConnection As System.Data.IDbConnection = GetConnection() 

       SyncLock sqldbConnection 

        Using sqlCMD As SqlClient.SqlCommand = sqldbConnection.CreateCommand() 
         sqlCMD.CommandText = strSQL 

         Try 
          ' Open the connection 
          If Not sqldbConnection.State = ConnectionState.Open Then 
           sqldbConnection.Open() 
          End If 

          Dim objResult As Object = sqlCMD.ExecuteScalar() 

          If objResult IsNot Nothing Then 
           strReturnValue = objResult.ToString() 
          Else 
           strReturnValue = Nothing 
          End If 

          objResult = Nothing 
         Catch ex As System.Data.SqlClient.SqlException 
          'Log.File.WriteText(String.Format("Exception executing ExecuteSQLstmtScalar: {0}", ex.Message.ToString() + vbCrLf + "strSQL=" + strSQL)) 
          Log.File.WriteText(String.Format("Fehler beim Ausführen von ExecuteSQLstmtScalar: {0}", ex.Message.ToString() + vbCrLf + "strSQL=" + strSQL)) 
          ' No Error notification when silent 
         Finally 

          ' Open the connection 
          If Not sqldbConnection.State = ConnectionState.Closed Then 
           sqldbConnection.Close() 
          End If 

          sqlCMD.Dispose() 
          sqldbConnection.Dispose() 
         End Try 

        End Using ' sqlCMD 

       End SyncLock ' sqldbConnection 

      End Using ' sqldbConnection 

      Return strReturnValue 
     End Function ' ExecuteSQLstmtScalar 



     Public Shared Sub ExecuteSQLStmtWithParameters(ByRef strSQL As String, ByVal ParameterStore As cParameterStore) 

      Using conn As System.Data.IDbConnection = GetConnection() 

       SyncLock conn 
        Using sqlCMD As System.Data.SqlClient.SqlCommand = conn.CreateCommand 
         sqlCMD.CommandText = strSQL 
         'sqlCMD.Parameters.Add("@mandant", System.Data.SqlDbType.Int).Value = 5 
         For Each kvpThisParameter As KeyValuePair(Of String, cParameterStore.cParameter) In ParameterStore.Parameters 
          sqlCMD.Parameters.Add(kvpThisParameter.Key, kvpThisParameter.Value.SqlDbType).Value = kvpThisParameter.Value.Value 
         Next 

         'Dim x As System.Data.IDataParameter = cmd.CreateParameter() 
         'x.ParameterName = "" 
         'x.Value = "" 
         'sqlCMD.Parameters.Add(x) 


         Try 
          ' Open the connection 
          If Not conn.State = ConnectionState.Open Then 
           conn.Open() 
          End If 

          sqlCMD.ExecuteNonQuery() 

          'Log.File.WriteText(String.Format("Command ExecuteSQLStmtWithParameters completed successfully. {0}", vbCrLf + "strSQL=" + strSQL)) 
         Catch ex As SqlClient.SqlException 
          'Log.File.WriteText(String.Format("Exception executing ExecuteSQLStmtWithParameters: {0}", ex.Message.ToString() + vbCrLf + "strSQL=" + strSQL)) 
          Log.File.WriteText(String.Format("Fehler beim Ausführen von ExecuteSQLStmtWithParameters: {0}", ex.Message.ToString() + vbCrLf + "strSQL=" + strSQL)) 
         Finally 
          If Not conn.State = ConnectionState.Closed Then 
           conn.Close() 
          End If 
         End Try 

        End Using ' sqlCMD 

       End SyncLock ' conn 

      End Using ' conn 

     End Sub ' ExecuteSQLStmtWithParameters 


     Public Shared Sub ExecuteSQLStmtNoNotification(ByRef strSQL As String, Optional ByRef strConnectionString As String = Nothing) 
      Using conn As System.Data.IDbConnection = GetConnection() 

       SyncLock conn 

        Using cmd As System.Data.IDbCommand = conn.CreateCommand() 
         cmd.CommandText = strSQL 

         Try 
          ' Open the connection 
          If Not conn.State = ConnectionState.Open Then 
           conn.Open() 
          End If 

          cmd.ExecuteNonQuery() 
          'Log.File.WriteText(String.Format("Command ExecuteSQLStmtNoNotification completed successfully. {0}", vbCrLf + "strSQL=" + strSQL)) 
         Catch ex As SqlClient.SqlException 
          'Log.File.WriteText(String.Format("Exception executing ExecuteSQLStmtNoNotification: {0}", ex.Message.ToString() + vbCrLf + "strSQL=" + strSQL)) 
          Log.File.WriteText(String.Format("Fehler beim Ausführen von ExecuteSQLStmtNoNotification: {0}", ex.Message.ToString() + vbCrLf + "strSQL=" + strSQL)) 
         Finally 
          If Not conn.State = ConnectionState.Closed Then 
           conn.Close() 
          End If 
         End Try 

        End Using ' cmd 

       End SyncLock ' conn 

      End Using ' conn 

     End Sub 'ExecuteSQLStmtNoNotification 



     Public Shared Function ExecuteSQLStmtNoNotificationReturnError(ByRef strSQL As String, Optional ByRef strConnectionString As String = Nothing) As System.Data.SqlClient.SqlException 
      Dim eErrorCatcher As System.Data.SqlClient.SqlException = Nothing 

      Using conn As System.Data.IDbConnection = GetConnection() 

       SyncLock conn 

        Using sqlCMD As System.Data.IDbCommand = conn.CreateCommand() 

         Try 
          sqlCMD.CommandText = strSQL 

          ' Open the connection 
          If Not conn.State = System.Data.ConnectionState.Open Then 
           conn.Open() 
          End If 

          sqlCMD.ExecuteNonQuery() 
         Catch ex As System.Data.SqlClient.SqlException 
          eErrorCatcher = ex 
          Log.File.WriteText(String.Format("Fehler beim Ausführen von ExecuteSQLStmtNoNotificationReturnError: {0}", ex.Message.ToString() + vbCrLf + "strSQL=" + strSQL)) 
         Catch ex As Exception 
          Log.File.WriteText(String.Format("Unerwarteter Fehler beim Ausführen von ExecuteSQLStmtNoNotificationReturnError: {0}", ex.Message.ToString() + vbCrLf + "strSQL=" + strSQL)) 
         Finally 
          If Not conn.State = System.Data.ConnectionState.Closed Then 
           conn.Close() 
          End If 
         End Try 

        End Using ' sqlCMD 

       End SyncLock ' conn 

      End Using ' conn 

      Return eErrorCatcher 
     End Function 'ExecuteSQLStmtNoNotificationReturnError 


     Public Shared Sub ExecuteSQLStmtSilent(ByRef strSQL As String) 
      Using conn As System.Data.IDbConnection = GetConnection() 

       SyncLock conn 

        Using cmd As System.Data.IDbCommand = conn.CreateCommand() 
         cmd.CommandText = strSQL 
         Try 
          ' Open the connection 
          If Not conn.State = ConnectionState.Open Then 
           conn.Open() 
          End If 

          cmd.ExecuteNonQuery() 
         Catch ex As System.Data.SqlClient.SqlException 
          ' No Error notification in silent mode 
          'Log.File.WriteText(String.Format("Exception executing ExecuteSQLStmtSilent: {0}", ex.Message.ToString() + vbCrLf + "strSQL=" + strSQL)) 
          Log.File.WriteText(String.Format("Fehler beim Ausführen von ExecuteSQLStmtSilent: {0}", ex.Message.ToString() + vbCrLf + "strSQL=" + strSQL)) 
         Finally 
          ' Open the connection 
          If Not conn.State = ConnectionState.Closed Then 
           conn.Close() 
          End If 
         End Try 

        End Using ' cmd 

       End SyncLock ' conn 

      End Using ' conn 

     End Sub 'ExecuteSQLStmtSilent 


     Public Shared Sub GetDataSetWithParameters(ByRef strSQL As String, ByRef dsDataFromTable As DataSet, ByRef ParameterStore As cParameterStore) 
      GetDataSetWithParameters(strSQL, dsDataFromTable, "ThisTable", ParameterStore) 
     End Sub ' GetDataSetWithParameters 


     Public Shared Sub GetDataSetWithParameters(ByRef strSQL As String, ByRef dsDataFromTable As DataSet, ByVal strTableName As String, ByRef ParameterStore As cParameterStore) 
      Using sqlConnection As System.Data.SqlClient.SqlConnection = GetConnection() 

       SyncLock sqlConnection 

        Using sqlCMD As System.Data.SqlClient.SqlCommand = sqlConnection.CreateCommand() 
         sqlCMD.CommandText = strSQL 
         'sqlCMD.Parameters.Add("@mandant", System.Data.SqlDbType.Int).Value = 5 
         Try 
          For Each kvpThisParameter As KeyValuePair(Of String, cParameterStore.cParameter) In ParameterStore.Parameters 
           sqlCMD.Parameters.Add(kvpThisParameter.Key, kvpThisParameter.Value.SqlDbType).Value = kvpThisParameter.Value.Value 
          Next 
         Catch ex As Exception 
          Log.File.WriteText(String.Format("Fehler in GetDataSetWithParameters (at adding parameters): {0}", ex.Message + Environment.NewLine + "strSQL=" + strSQL)) 
         End Try 

         Using daQueryTable As System.Data.SqlClient.SqlDataAdapter = New System.Data.SqlClient.SqlDataAdapter(sqlCMD) 
          Try 



           dsDataFromTable = New System.Data.DataSet(strTableName) 

           If Not sqlConnection.State = System.Data.ConnectionState.Open Then 
            sqlConnection.Open() 
           End If 

           daQueryTable.Fill(dsDataFromTable) 
          Catch ex As Exception 
           'Log.File.WriteText(String.Format("Exception executing GetDataSetWithParameters: {0}", ex.Message + vbCrLf + "strSQL=" + strSQL)) 
           Log.File.WriteText(String.Format("Fehler in GetDataSetWithParameters: {0}", ex.Message + Environment.NewLine + "strSQL=" + strSQL)) 
          Finally 
           If Not sqlConnection.State = System.Data.ConnectionState.Closed Then 
            sqlConnection.Close() 
           End If 
          End Try 

         End Using ' daQueryTable 

        End Using ' sqlCMD 

       End SyncLock ' sqlConnection 

      End Using ' sqlConnection 

     End Sub ' GetDataSetWithParameters 


     Public Shared Sub GetDataSet(ByRef strSQL As String, ByRef dsDataFromTable As DataSet) 
      GetDataSet(strSQL, dsDataFromTable, "ThisTable") 
     End Sub ' GetDataSetWithParameters 


     Public Shared Sub GetDataSet(ByRef strSQL As String, ByRef dsDataFromTable As DataSet, ByVal strTableName As String) 
      Using sqlConnection As System.Data.SqlClient.SqlConnection = GetConnection() 

       SyncLock sqlConnection 

        Using daQueryTable As System.Data.SqlClient.SqlDataAdapter = New System.Data.SqlClient.SqlDataAdapter(strSQL, sqlConnection) 
         Try 
          dsDataFromTable = New System.Data.DataSet(strTableName) 

          If Not sqlConnection.State = System.Data.ConnectionState.Open Then 
           sqlConnection.Open() 
          End If 

          daQueryTable.Fill(dsDataFromTable) 
         Catch ex As Exception 
          'Log.File.WriteText(String.Format("Exception executing GetDataSetWithParameters: {0}", ex.Message.ToString() + vbCrLf + "strSQL=" + strSQL)) 
          Log.File.WriteText(String.Format("Fehler in GetDataSetWithParameters: {0}", ex.Message + Environment.NewLine + "strSQL=" + strSQL)) 
         Finally 
          If Not sqlConnection.State = System.Data.ConnectionState.Closed Then 
           sqlConnection.Close() 
          End If 
         End Try 

        End Using ' daQueryTable 

       End SyncLock ' sqlConnection 

      End Using ' sqlConnection 

     End Sub ' GetDataSet 



    End Class 


End Namespace 

Answer 4

很快從另一個論壇複製;這應該讓你開始：

從Digital Point Forum：

如果你不找尋呼和更新的內置支持，只需使用一箇中繼器，代碼應該是這個樣子。

<asp:Repeater id="myRepeater" runat="server"> 
<ItemTemplate> 
<a href='<%# Eval("client_url") %>'><%# Eval("client_name") %> </a> 
</ItemTemplate> 
</asp:Repeater> 

在後面的代碼......

protected void Page_Load(object sender, EventArgs e) 
{ 
    if (IsPostBack == false) 
    { 
     string strConnection = ConfigurationManager.ConnectionStrings["connectionString"].ConnectionString; // Add your connection string here if you have it in your web.config file, if not, just type it out manually. 
     string mySelectQuery = "SELECT client_url, client_name FROM Clients"; 
     SqlConnection myConnection = new SqlConnection(strConnection); 
     SqlCommand myCommand = new SqlCommand(mySelectQuery, myConnection); 
     myConnection.Open(); 
     SqlDataReader myReader; 
     myReader = myCommand.ExecuteReader(); 
     myRepeater.DataSource = myReader; 
     myRepeater.DataBind(); 
     myReader.Close(); 
     myConnection.Close(); 
    } 
}