/// <summary>
/// IDataReader转换字典
/// </summary>
public static MapingData[] DataReaderToDictionary(IDataReader reader)
{
// 获取数据的列并转成字典
var dicColumns = new MapingData[reader.FieldCount];
for (var i = 0; i < reader.FieldCount; i++)
{
var mapData = dicColumns[i] = new MapingData();
mapData.ColumnName = reader.GetName(i);
mapData.DataList = new List <object>();
}
// 遍历行
while (reader.Read())
{
// 当前记录的所有字段的值
var arrVals = new object[reader.FieldCount];
reader.GetValues(arrVals);
// 遍历列
for (var i = 0; i < dicColumns.Length; i++)
{
dicColumns[i].DataList.Add(arrVals[i]);
}
}
reader.Close();
return(dicColumns);
}
/// <summary>
/// DataTable转字典
/// </summary>
public static MapingData[] DataTableToDictionary(DataTable dt)
{
// 获取数据的列并转成字典
var cols = dt.Columns;
var dicColumns = new MapingData[cols.Count];
for (var i = 0; i < cols.Count; i++)
{
var mapData = dicColumns[i] = new MapingData();
mapData.ColumnName = cols[i].ColumnName;
mapData.DataList = new List <object>(dt.Rows.Count);
}
// DataRowCollection转成DataRow[]
var rows = new DataRow[dt.Rows.Count];
dt.Rows.CopyTo(rows, 0);
// 遍历DataRow
foreach (var dr in rows)
{
var arrVals = dr.ItemArray;
// 遍历列
for (int i = 0; i < dicColumns.Length; i++)
{
dicColumns[i].DataList.Add(arrVals[i]);
}
}
return(dicColumns);
}
