/// <summary>
/// dataRow比較
/// </summary>
/// <param name="drA"></param>
/// <param name="drB"></param>
/// <param name="columnNames">需要比較的列名稱</param>
/// <returns></returns>
public static bool DataRowCompare(DataRow drA, DataRow drB, string[] columnNames)
{
bool flag = false;
//DataRow 中需要比較的列排序
ColumnSort(drA, columnNames);
ColumnSort(drB, columnNames);
foreach (DataColumn dcA in drA.Table.Columns)
{
if (columnNames.Contains(dcA.ColumnName))
{
foreach (DataColumn dcB in drB.Table.Columns)
{
if (columnNames.Contains(dcB.ColumnName))
{
if (dcB.ColumnName == dcA.ColumnName)//列名比較
{
//類型比較
if (dcB.DataType != dcA.DataType)
{
flag = false;
break;
}
//值比較
else if (CompareObject(drA[dcB.ColumnName], drB[dcB.ColumnName]))
{
flag = true;
break;
}
}
}
}
}
}
return flag;
}
/// <summary>
/// 按照數組中列名順序排序
/// </summary>
/// <param name="drA"></param>
/// <param name="columnNames">按照數組中列名順序排序</param>
public static void ColumnSort(DataRow drA, string[] columnNames)
{
//drA 排序
int i = 0;
foreach (string columnName in columnNames)
{
if (drA.Table.Columns.Contains(columnName))
{
drA.Table.Columns[columnName].SetOrdinal(i);
i++;
}
}
}
對象比較方法 CompareObject(object objA, object objB):
C# 對象比較(值類型、引用類型)
深拷貝部分代碼: