/// <summary>
/// dataRow比较
/// </summary>
/// <param name="drA"></param>
/// <param name="drB"></param>
/// <param name="columnNames">需要比较的列名称</param>
/// <returns></returns>
public static bool DataRowCompare(DataRow drA, DataRow drB, string[] columnNames)
{
bool flag = false;
//DataRow 中需要比较的列排序
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)//列名比较
{
//类型比较
if (dcB.DataType != dcA.DataType)
{
flag = false;
break;
}
//值比较
else if (CompareObject(drA[dcB.ColumnName], drB[dcB.ColumnName]))
{
flag = true;
break;
}
}
}
}
}
}
return flag;
}
/// <summary>
/// 按照数组中列名顺序排序
/// </summary>
/// <param name="drA"></param>
/// <param name="columnNames">按照数组中列名顺序排序</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++;
}
}
}
对象比较方法 CompareObject(object objA, object objB)：
C# 对象比较(值类型、引用类型)
深拷贝部分代码：
转播
