C# 如何循环遍历datatable中特定列的值？

我想循环遍历datatable中特定列的值？有人能给出C代码吗？

试试下面基于Linq的解决方案

var values = (from t in dt.AsEnumarable() // dt is your data table
             select t[ColumnName]).ToList().ForEach(your expression );


 or try normal way 

 foreach(DataRow drow in dt.Rows)
 {
      string value = drow[columnname].ToString();
 }

您好，请尝试下面的代码片段 using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Data;

namespace ConsoleApplication1 { class Program { public static DataTable GetDataTable() { //Create a new DataTable object DataTable objDataTable = new DataTable(); //Create three columns with string as their type objDataTable.Columns.Add("Column 1", typeof(string)); objDataTable.Columns.Add("Column 2", typeof(string)); objDataTable.Columns.Add("Column 3", typeof(string)); //Adding some data in the rows of this DataTable objDataTable.Rows.Add(new string[] { "Row1 - Column1", "Row1 - Column2", "Row1 - Column3" }); objDataTable.Rows.Add(new string[] { "Row2 - Column1", "Row2 - Column2", "Row2 - Column3" }); objDataTable.Rows.Add(new string[] { "Row3 - Column1", "Row3 - Column2", "Row3 - Column3" }); return objDataTable;

    }
    static void Main(string[] args)
    {

        foreach (DataRow row in GetDataTable().Rows)
        {

            object cellData = row["Column 1"];
            Console.WriteLine(cellData);

        }


    }
}

}

using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Data;

namespace ConsoleApplication1 { class Program { public static DataTable GetDataTable() { //Create a new DataTable object DataTable objDataTable = new DataTable(); //Create three columns with string as their type objDataTable.Columns.Add("Column 1", typeof(string)); objDataTable.Columns.Add("Column 2", typeof(string)); objDataTable.Columns.Add("Column 3", typeof(string)); //Adding some data in the rows of this DataTable objDataTable.Rows.Add(new string[] { "Row1 - Column1", "Row1 - Column2", "Row1 - Column3" }); objDataTable.Rows.Add(new string[] { "Row2 - Column1", "Row2 - Column2", "Row2 - Column3" }); objDataTable.Rows.Add(new string[] { "Row3 - Column1", "Row3 - Column2", "Row3 - Column3" }); return objDataTable;

    }
    static void Main(string[] args)
    {

        foreach (DataRow row in GetDataTable().Rows)
        {

            object cellData = row["Column 1"];
            Console.WriteLine(cellData);

        }


    }
}