Comment joindre efficacement deux DataTables en C# à l'aide de LINQ ?

<code>T1(CustID, ColX, ColY)

T2(CustID, ColZ)</code>

<code class="language-csharp">DataTable dt1 = new DataTable();
dt1.Columns.Add("CustID", typeof(int));
dt1.Columns.Add("ColX", typeof(int));
dt1.Columns.Add("ColY", typeof(int));

DataTable dt2 = new DataTable();
dt2.Columns.Add("CustID", typeof(int));
dt2.Columns.Add("ColZ", typeof(int));

// ... (此处应添加填充dt1和dt2数据的代码) ...


var query = from table1 in dt1.AsEnumerable()
            join table2 in dt2.AsEnumerable() on table1["CustID"] equals table2["CustID"]
            select new
            {
                CustID = table1["CustID"],
                ColX = table1["ColX"],
                ColY = table1["ColY"],
                ColZ = table2["ColZ"]
            };

DataTable TJ = new DataTable();
TJ.Columns.Add("CustID", typeof(int));
TJ.Columns.Add("ColX", typeof(int));
TJ.Columns.Add("ColY", typeof(int));
TJ.Columns.Add("ColZ", typeof(int));

foreach (var item in query)
{
    TJ.Rows.Add(item.CustID, item.ColX, item.ColY, item.ColZ);
}

// ... (此处应添加显示TJ DataTable内容的代码) ...</code>