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unit MyADO;
interface
uses
SysUtils, Classes,ADODB,DB,Variants,StdCtrls,Dialogs;
type
TMyADO = class(TComponent)
private
Connection: TADOConnection;
Query: TADOQuery;
Table: TADOTable;
FConnectionString:string;
procedure InitQuery(InputQuery: TADOQuery; QueryString: String);
function CheckParaEqual(QueryString: String; ParameterList: TStringList):Boolean;
procedure InitParameter(InputQuery:TADOQuery;QueryString:string;ParameterList:TStringList);
public
constructor Create(ConnectionString: String);virtual;
destructor Destory;virtual;
procedure SetConnectionString(ConnectionString: string);
function GetConnection():TADOConnection;overload;virtual;
function GetConnection(ConnectionString: String): TADOConnection;overload;virtual;
function GetQuery: TADOQuery;overload;virtual;
procedure GetQuery(InputQuery: TADOQuery; QueryString: String);overload;virtual;
procedure GetQuery(InputQuery:TADOQuery; QueryString: String; ParameterList: TStringList);overload;virtual;
function GetTable: TADOTable;overload;virtual;
function GetTable(TableName: String): TADOTable;overload;virtual;
function GetTable(TableName: String; Connection: TADOConnection):TADOTable;overload;virtual;
function GetExecuteScalar(QueryString: String): Variant;overload;virtual;
function GetExecuteScalar(QueryString: String; ParameterList: TStringList): Variant;overload;virtual;
function GetExecuteNoQuery(ExecuteSQL:String):Boolean;overload;virtual;
function GetExecuteNoQuery(ExecuteSQL: String; ParameteList: TStringList):Boolean;overload;virtual;
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procedure WMDeviceChange(var Msg: TMessage); message WM_DEVICECHANGE;
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