public static string GetBuiltConnectionString(string inputConnectionString)
{
MSDASC.DataLinks oDL = null;
string res = string.Empty;
try
{
oDL = new MSDASC.DataLinksClass();
ADODB.Connection conn = new ADODB.ConnectionClass();
conn.ConnectionString = inputConnectionString;
object oConn = (object)conn;
if (oDL.PromptEdit(ref oConn))
{
res = conn.ConnectionString;
}
}
catch
{
try
{
ADODB._Connection oConn = (ADODB._Connection)oDL.PromptNew();
if (oConn != null)
{
res = oConn.ConnectionString.ToString();
}
}
catch (Exception ex)
{
MyExceptionHandler.NewEx(ex);
}
}
return(string.IsNullOrEmpty(res) ? null : res);
}
public override object EditValue(ITypeDescriptorContext context, IServiceProvider provider, object value)
{
Cursor.Current = Cursors.WaitCursor;
string tmpReturn = string.Empty;
MSDASC.DataLinks dataLinks = new MSDASC.DataLinksClass();
ADODB._Connection connection = null;
if (value.ToString() == String.Empty)
{
try
{
connection = (ADODB._Connection)dataLinks.PromptNew();
if (connection != null) //if cancel is pressed connection is null
{
tmpReturn = connection.ConnectionString;
}
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString());
}
}
else
{
connection = new ADODB.ConnectionClass();
connection.ConnectionString = value.ToString();
object oConnection = connection;
try
{
if ((bool)dataLinks.PromptEdit(ref oConnection))
{
tmpReturn = connection.ConnectionString;
}
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString());
}
}
Cursor.Current = Cursors.Default;
return(tmpReturn);
}
/// <summary>
/// Задаёт строку соединения с базой и определяет версию SQL-сервера
/// </summary>
/// <returns>true - выполнена успешно; false - произошла ошибка</returns>
/// <remarks>На машине пользователя должны быть установлены "Microsoft ActiveX Data... 2.7" и "Microsoft OLEDB 1.0 Service..." </remarks>
public bool setConStr()
{
sqlVer = SqlVer.UNKNOWN;
conStr = "";
try
{
//нужно подключить Microsoft ActiveX Data... 2.7 и Microsoft OLEDB 1.0 Service..."
MSDASC.DataLinks conDlg = new MSDASC.DataLinks();
ADODB._Connection adoCon = (ADODB._Connection)conDlg.PromptNew();
if (adoCon == null)
{
return(false);
}
conStr = adoCon.ConnectionString;
//выясняем какая версия MS SQL Server используется
if (conStr.IndexOf("SQLOLEDB") >= 0)
{
sqlVer = SqlVer.MSSQL2000;
}
if (conStr.IndexOf("SQLNCLI") >= 0)
{
sqlVer = SqlVer.MSSQL2005;
}
if (sqlVer == SqlVer.UNKNOWN)
{
return(false);
}
}
catch (Exception e)
{
MessageBox.Show(e.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error, MessageBoxDefaultButton.Button1);
return(false);
}
return(true);
}
