簡単な解決策として、これで十分です。
// Create and populate data tables
DataTable dataTable1 = new DataTable();
dataTable1.Columns.Add("Name", typeof(string));
DataRow row1 = dataTable1.NewRow();
row1["Name"] = "Inam";
DataRow row2 = dataTable1.NewRow();
row2["Name"] = "Sohan";
dataTable1.Rows.Add(row1);
dataTable1.Rows.Add(row2);
DataTable dataTable2 = new DataTable();
dataTable2.Columns.Add("Name", typeof(string));
DataRow row3 = dataTable2.NewRow();
row3["Name"] = "Ranjan";
DataRow row4 = dataTable2.NewRow();
row4["Name"] = "Inam";
DataRow row5 = dataTable2.NewRow();
row5["Name"] = "Sohan";
dataTable2.Rows.Add(row3);
dataTable2.Rows.Add(row4);
dataTable2.Rows.Add(row5);
// Loop through rows in first table
foreach (DataRow row in dataTable1.Rows)
{
int rowIndexInSecondTable = 0;
// Loop through rows in second table
for (int i = 0; i < dataTable2.Rows.Count; i++)
{
// Check if the column values are the same
if (row["Name"] == dataTable2.Rows[i]["Name"])
{
// Set the current index and break to stop further processing
rowIndexInSecondTable = i;
break;
}
}
// The index of the row in the second table is now stored in the rowIndexInSecondTable variable, use it as needed, for example, writing to the console
Console.WriteLine("Row with name '" + row["Name"] + "' found at index " + rowIndexInSecondTable.ToString());
}