| public abstract Contains ( object value ) : bool | ||
| value | object | |
| return | bool | |
/// <summary>
/// Get or set command parameter. If a command parameter not found,
/// a new parameter with the given field identifier is created and returned.
/// </summary>
/// <param name="fieldIdentifier">Field identifier without '@' as prefix.</param>
/// <returns>Returns a command parameter associated with the field identifier. If not found,
/// a new parameter with the given field identifier is created and returned.</returns>
public DbParameter this[string fieldIdentifier]
{
get
{
if (_parameters.Contains("@" + fieldIdentifier))
{
return(_parameters["@" + fieldIdentifier]);
}
else
{
DbParameter parameter = _command.CreateParameter();
parameter.ParameterName = "@" + fieldIdentifier;
_parameters.Add(parameter);
return(parameter);
}
}
set
{
_parameters["@" + fieldIdentifier] = value;
}
}
//// <summary>
///// ���û�����Ϣ
///// </summary>
///// <param name="tableName"></param>
///// <param name="primaryKeyName"></param>
//private void SetTableName(string tableName, string primaryKeyName)
//{
//}
// Todo: SearchManangerFunction �в�����������������ʱ��������
private static string GetParameterName(DbParameterCollection dbParams, string baseName)
{
baseName = baseName.Replace('(', '9').Replace(')', '9').Replace('*', '9');
if (dbParams == null || !dbParams.Contains(baseName))
{
return baseName;
}
int i = 0;
while (true)
{
string name = baseName + i.ToString();
if (!dbParams.Contains(name))
{
return name;
}
i++;
}
}