winform.pas.~5~

《Delphi 2005程序设计及其应用开发》源代码

unit WinForm;

interface

uses
  System.Drawing, System.Collections, System.ComponentModel,
  System.Windows.Forms, System.Data, Borland.Data.Provider, Borland.Data.Common, 
  DataSet1Unit, System.Globalization, System.Data.Common;

type
  TWinForm = class(System.Windows.Forms.Form)
  {$REGION 'Designer Managed Code'}
  strict private
    /// <summary>
    /// Required designer variable.
    /// </summary>
    Components: System.ComponentModel.Container;
    BdpConnection1: Borland.Data.Provider.BdpConnection;
    bdpSelectCommand1: Borland.Data.Provider.BdpCommand;
    bdpInsertCommand1: Borland.Data.Provider.BdpCommand;
    bdpUpdateCommand1: Borland.Data.Provider.BdpCommand;
    bdpDeleteCommand1: Borland.Data.Provider.BdpCommand;
    bdpSelectCommand2: Borland.Data.Provider.BdpCommand;
    bdpInsertCommand2: Borland.Data.Provider.BdpCommand;
    bdpUpdateCommand2: Borland.Data.Provider.BdpCommand;
    bdpDeleteCommand2: Borland.Data.Provider.BdpCommand;
    DataGrid1: System.Windows.Forms.DataGrid;
    DataGrid2: System.Windows.Forms.DataGrid;
    CatagoryDataAdapter: Borland.Data.Provider.BdpDataAdapter;
    ProductDataAdapter: Borland.Data.Provider.BdpDataAdapter;
    dataSet1: System.Data.DataSet;
    /// <summary>
    /// Required method for Designer support - do not modify
    /// the contents of this method with the code editor.
    /// </summary>
    procedure InitializeComponent;
    procedure TWinForm_Load(sender: System.Object; e: System.EventArgs);
  {$ENDREGION}
  strict protected
    /// <summary>
    /// Clean up any resources being used.
    /// </summary>
    procedure Dispose(Disposing: Boolean); override;
  private
    { Private Declarations }
  public
    constructor Create;
  end;

  [assembly: RuntimeRequiredAttribute(TypeOf(TWinForm))]

implementation

{$REGION 'Windows Form Designer generated code'}
/// <summary>
/// Required method for Designer support -- do not modify
/// the contents of this method with the code editor.
/// </summary>
procedure TWinForm.InitializeComponent;
type
  TArrayOfSystem_Data_Common_DataTableMapping = array of System.Data.Common.DataTableMapping;
  TArrayOfSystem_Data_Common_DataColumnMapping = array of System.Data.Common.DataColumnMapping;
begin
  Self.DataGrid1 := System.Windows.Forms.DataGrid.Create;
  Self.DataGrid2 := System.Windows.Forms.DataGrid.Create;
  Self.BdpConnection1 := Borland.Data.Provider.BdpConnection.Create;
  Self.CatagoryDataAdapter := Borland.Data.Provider.BdpDataAdapter.Create;
  Self.bdpSelectCommand1 := Borland.Data.Provider.BdpCommand.Create;
  Self.bdpInsertCommand1 := Borland.Data.Provider.BdpCommand.Create;
  Self.bdpUpdateCommand1 := Borland.Data.Provider.BdpCommand.Create;
  Self.bdpDeleteCommand1 := Borland.Data.Provider.BdpCommand.Create;
  Self.ProductDataAdapter := Borland.Data.Provider.BdpDataAdapter.Create;
  Self.bdpSelectCommand2 := Borland.Data.Provider.BdpCommand.Create;
  Self.bdpInsertCommand2 := Borland.Data.Provider.BdpCommand.Create;
  Self.bdpUpdateCommand2 := Borland.Data.Provider.BdpCommand.Create;
  Self.bdpDeleteCommand2 := Borland.Data.Provider.BdpCommand.Create;
  Self.dataSet1 := System.Data.DataSet.Create;
  (System.ComponentModel.ISupportInitialize(Self.DataGrid1)).BeginInit;
  (System.ComponentModel.ISupportInitialize(Self.DataGrid2)).BeginInit;
  (System.ComponentModel.ISupportInitialize(Self.CatagoryDataAdapter)).BeginInit;
  (System.ComponentModel.ISupportInitialize(Self.ProductDataAdapter)).BeginInit;
  (System.ComponentModel.ISupportInitialize(Self.dataSet1)).BeginInit;
  Self.SuspendLayout;
  // 
  // DataGrid1
  // 
  Self.DataGrid1.CaptionText := 'Customers';
  Self.DataGrid1.DataMember := '';
  Self.DataGrid1.HeaderForeColor := System.Drawing.SystemColors.ControlText;
  Self.DataGrid1.Location := System.Drawing.Point.Create(8, 0);
  Self.DataGrid1.Name := 'DataGrid1';
  Self.DataGrid1.Size := System.Drawing.Size.Create(373, 171);
  Self.DataGrid1.TabIndex := 0;
  // 
  // DataGrid2
  // 
  Self.DataGrid2.CaptionText := 'Ouders';
  Self.DataGrid2.DataMember := '';
  Self.DataGrid2.HeaderForeColor := System.Drawing.SystemColors.ControlText;
  Self.DataGrid2.Location := System.Drawing.Point.Create(7, 186);
  Self.DataGrid2.Name := 'DataGrid2';
  Self.DataGrid2.Size := System.Drawing.Size.Create(373, 156);
  Self.DataGrid2.TabIndex := 1;
  // 
  // BdpConnection1
  // 
  Self.BdpConnection1.ConnectionOptions := 'transaction isolation=ReadCommit' +
  'ted;blobsize=1024';
  Self.BdpConnection1.ConnectionString := 'assembly=Borland.Data.Mssql,Versi' +
  'on=2.0.0.0,Culture=neutral,PublicKeyToken=91d62ebb5b0d1b1b;vendorclient=s' +
  'qloledb.dll;osauthentication=True;database=Northwind;username=;hostname=E' +
  'CON-IBM-T40-G7;password=;provider=MSSQL';
  // 
  // CatagoryDataAdapter
  // 
  Self.CatagoryDataAdapter.Active := False;
  Self.CatagoryDataAdapter.DataSet := Self.dataSet1;
  Self.CatagoryDataAdapter.DataTable := nil;
  Self.CatagoryDataAdapter.DeleteCommand := Self.bdpDeleteCommand1;
  Self.CatagoryDataAdapter.InsertCommand := Self.bdpInsertCommand1;
  Self.CatagoryDataAdapter.SelectCommand := Self.bdpSelectCommand1;
  Self.CatagoryDataAdapter.StartRecord := 0;
  Self.CatagoryDataAdapter.TableMappings.AddRange(TArrayOfSystem_Data_Common_DataTableMapping.Create(System.Data.Common.DataTableMapping.Create('T' +
          'able', 'Categories', TArrayOfSystem_Data_Common_DataColumnMapping.Create(System.Data.Common.DataColumnMapping.Create('C' +
                'ategoryID', 'CategoryID'), System.Data.Common.DataColumnMapping.Create('C' +
                'ategoryName', 'CategoryName'), System.Data.Common.DataColumnMapping.Create('D' +
                'escription', 'Description'), System.Data.Common.DataColumnMapping.Create('P' +
                'icture', 'Picture')))));
  Self.CatagoryDataAdapter.UpdateCommand := Self.bdpUpdateCommand1;
  // 
  // bdpSelectCommand1
  // 
  Self.bdpSelectCommand1.CommandOptions := nil;
  Self.bdpSelectCommand1.CommandText := 'SELECT * FROM dbo.Categories';
  Self.bdpSelectCommand1.CommandType := System.Data.CommandType.Text;
  Self.bdpSelectCommand1.Connection := Self.BdpConnection1;
  Self.bdpSelectCommand1.ParameterCount := (SmallInt(0));
  Self.bdpSelectCommand1.SchemaName := nil;
  Self.bdpSelectCommand1.Transaction := nil;
  Self.bdpSelectCommand1.UpdatedRowSource := System.Data.UpdateRowSource.None;
  // 
  // bdpInsertCommand1
  // 
  Self.bdpInsertCommand1.CommandOptions := nil;
  Self.bdpInsertCommand1.CommandText := 'INSERT INTO dbo.Categories (Categor' +
  'yID, CategoryName, Description, Picture ) VALUES ( ?, ?, ?, ?)';
  Self.bdpInsertCommand1.CommandType := System.Data.CommandType.Text;
  Self.bdpInsertCommand1.Connection := Self.BdpConnection1;
  Self.bdpInsertCommand1.ParameterCount := (SmallInt(4));
  Self.bdpInsertCommand1.Parameters.Add(Borland.Data.Common.BdpParameter.Create('C' +
      'ategoryID', Borland.Data.Common.BdpType.Int32, Borland.Data.Common.BdpType.Unknown, 
        4, System.Data.ParameterDirection.Input, False, (Byte(0)), (Byte(0)), 
        0, 'CategoryID', System.Data.DataRowVersion.Current, nil));
  Self.bdpInsertCommand1.Parameters.Add(Borland.Data.Common.BdpParameter.Create('C' +
      'ategoryName', Borland.Data.Common.BdpType.&String, Borland.Data.Common.BdpType.Unknown, 
        15, System.Data.ParameterDirection.Input, False, (Byte(15)), (Byte(0)), 
        15, 'CategoryName', System.Data.DataRowVersion.Current, nil));
  Self.bdpInsertCommand1.Parameters.Add(Borland.Data.Common.BdpParameter.Create('D' +
      'escription', Borland.Data.Common.BdpType.Blob, Borland.Data.Common.BdpType.stMemo, 
        -1, System.Data.ParameterDirection.Input, False, (Byte(0)), (Byte(0)), 
        0, 'Description', System.Data.DataRowVersion.Current, nil));
  Self.bdpInsertCommand1.Parameters.Add(Borland.Data.Common.BdpParameter.Create('P' +
      'icture', Borland.Data.Common.BdpType.Blob, Borland.Data.Common.BdpType.stBinary, 
        -1, System.Data.ParameterDirection.Input, False, (Byte(0)), (Byte(0)), 
        0, 'Picture', System.Data.DataRowVersion.Current, nil));
  Self.bdpInsertCommand1.SchemaName := nil;
  Self.bdpInsertCommand1.Transaction := nil;
  Self.bdpInsertCommand1.UpdatedRowSource := System.Data.UpdateRowSource.None;
  // 
  // bdpUpdateCommand1
  // 
  Self.bdpUpdateCommand1.CommandOptions := nil;
  Self.bdpUpdateCommand1.CommandText := 'UPDATE dbo.Categories SET CategoryI' +
  'D = ?, CategoryName = ?, Description = ?, Picture = ? WHERE CategoryID = ' +
  '? AND CategoryName = ?';
  Self.bdpUpdateCommand1.CommandType := System.Data.CommandType.Text;
  Self.bdpUpdateCommand1.Connection := Self.BdpConnection1;