Bind DataTable from another DataTableTable by concadinating string using C# in ASP.Net

Hi Anmol,

Refer the below sample code.

<div>
    <asp:GridView runat="server" ID="GridView1">
    </asp:GridView>
    <br />
    <asp:Repeater runat="server" ID="Repeater1">
        <HeaderTemplate>
            <table>
                <thead>
                    <th>
                        concatenated Value
                    </th>
                </thead>
        </HeaderTemplate>
        <ItemTemplate>
            <tr>
                <td>
                    <asp:Label ID="Label1" Text='<%# Eval("ConcatValue") %>' runat="server" />
                </td>
            </tr>
        </ItemTemplate>
        <FooterTemplate>
            </table>
        </FooterTemplate>
    </asp:Repeater>
</div>

Code

protected void Page_Load(object sender, EventArgs e)
{
    if (!IsPostBack)
    {
        // Get DataTable from Database and store in DataTable.
        DataTable dtFirstDataTable = new DataTable();
        dtFirstDataTable.Columns.AddRange(new DataColumn[] { new DataColumn("EmpNumber"), new DataColumn("EmpName") });
        dtFirstDataTable.Rows.Add("1", "John Hammond");
        dtFirstDataTable.Rows.Add("2", "Mudassar Khan");
        dtFirstDataTable.Rows.Add("3", "Suzanne Mathews");
        dtFirstDataTable.Rows.Add("4", "Robert Schidner");
        GridView1.DataSource = dtFirstDataTable;
        GridView1.DataBind();

        // Second DataTable by concatenating the value.
        DataTable dtSecondDataTable = new DataTable();
        dtSecondDataTable.Columns.AddRange(new DataColumn[] { new DataColumn("ConcatValue") });
        foreach (DataRow dr in dtFirstDataTable.Rows)
        {
            dtSecondDataTable.Rows.Add("www.google.com " + dr["EmpNumber"] + ", " + dr["EmpName"]);
        }
        Repeater1.DataSource = dtSecondDataTable;
        Repeater1.DataBind();
    }
}

Screenshot