问题
I want to loop through the values of a particular column in datatable? can anyone please give the C# coding?
回答1:
Hi try below code snippet
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); } } }
}
回答2:
DataTable tbl = new DataTable();
foreach (DataRow row in tbl.Rows)
{
object cellData = row["colName"];
}
回答3:
try below Linq based solution
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();
}
来源:https://stackoverflow.com/questions/4302025/how-to-loop-through-the-values-of-a-particular-column-in-datatable