/// <summary>
/// 检查可匹配的列
/// </summary>
/// <param name="reader"></param>
/// <param name="Properties"></param>
/// <returns></returns>
private static MapColumn[] CheckProperty(IDataReader reader, PropertyInfo[] Properties)
{
List <MapColumn> lst = new List <MapColumn>(Properties.Length);
List <string> lstCol = new List <string>(reader.FieldCount);
for (int i = 0; i < reader.FieldCount; i++)
{
lstCol.Add(reader.GetName(i));
}
foreach (var property in Properties)
{
string colName = property.Name;
DataFieldAttribute aliasAttr = property.GetCustomAttribute <DataFieldAttribute>();
if (aliasAttr != null)
{
colName = aliasAttr.ColumnName;
}
if (lstCol.Contains(colName))
{
MapColumn column = new MapColumn()
{
ColumnName = colName, Property = property
};
lst.Add(column);
}
}
return(lst.ToArray());
}
/// <summary>
/// 检查列;获取DataTable有列的属性集合
/// </summary>
/// <param name="dt">DataTable</param>
/// <param name="Properties">属性集合</param>
/// <returns>有列的属性集合</returns>
private static MapColumn[] CheckProperty(DataTable dt, PropertyInfo[] Properties)
{
List <MapColumn> lst = new List <MapColumn>(Properties.Length);
foreach (var property in Properties)
{
string colName = property.Name;
NoColumnAttribute noColumn = property.GetCustomAttribute <NoColumnAttribute>();
if (noColumn != null)
{
continue;
}
DataFieldAttribute aliasAttr = property.GetCustomAttribute <DataFieldAttribute>();
if (aliasAttr != null)
{
colName = aliasAttr.ColumnName;
}
if (dt.Columns.Contains(colName))
{
MapColumn column = new MapColumn()
{
ColumnName = colName, Property = property
};
lst.Add(column);
}
}
return(lst.ToArray());
}