Store DataTable Column Values in String Array using C# .Net

Hi Siddu,

 Please refer below Sample.

HTML

<asp:GridView runat="server" ID="gvItems">
</asp:GridView>

Namespace

C#

using System.Data;

VB.Net

Imports System.Data

Code

C#

protected void Page_Load(object sender, EventArgs e)
{
    DataTable dt = new DataTable();
    dt.Columns.AddRange(new DataColumn[2] {
        new DataColumn("Coupon"),
        new DataColumn("Code") });
    dt.Rows.Add("Shirt", 199);
    dt.Rows.Add("Football", 020);
    dt.Rows.Add("Shirt", 566);
    dt.Rows.Add("Disc", 099);
    dt.Rows.Add("Watch", 54);
    dt.Rows.Add("Clock", 890);

    string[] arr = new string[dt.Rows.Count];
    for (int i = 0; i < dt.Rows.Count; i++)
    {
        arr[i] = dt.Rows[i]["Coupon"].ToString();
    }
    gvItems.DataSource = arr;
    gvItems.DataBind();
}

VB.Net

Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs) Handles Me.Load
    Dim dt As DataTable = New DataTable()
    dt.Columns.AddRange(New DataColumn(1) {New DataColumn("Coupon"), New DataColumn("Code")})
    dt.Rows.Add("Shirt", 199)
    dt.Rows.Add("Football", 20)
    dt.Rows.Add("Shirt", 566)
    dt.Rows.Add("Disc", 99)
    dt.Rows.Add("Watch", 54)
    dt.Rows.Add("Clock", 890)
    Dim arr As String() = New String(dt.Rows.Count - 1) {}

    For i As Integer = 0 To dt.Rows.Count - 1
        arr(i) = dt.Rows(i)("Coupon").ToString()
    Next

    gvItems.DataSource = arr
    gvItems.DataBind()
End Sub

Screenshot