Display Multiple Columns in Multiple Lines (MultiLine) in single column in ASP.Net GridView

Hi kinoh28,

Here I have created sample that shows the grid as per your requirement.

HTML

<asp:GridView ID="gvDetails" runat="server" AutoGenerateColumns="false">
    <Columns>
        <asp:BoundField DataField="Id" HeaderText="ID" />
        <asp:BoundField DataField="Name" HeaderText="Name" />
        <asp:TemplateField HeaderText="Year">
            <ItemTemplate>
                <asp:Label ID="txtStartYear" Text='<%#Eval("StartYear")%>' runat="server" />
                <br />
                <asp:Label ID="txtEndYear" Text='<%#Eval("EndYear")%>' runat="server" />
            </ItemTemplate>
        </asp:TemplateField>
    </Columns>
</asp:GridView>

Code

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
    Dim dt As New DataTable()
    dt.Columns.AddRange(New DataColumn(3) {New DataColumn("Id", GetType(Integer)), New DataColumn("Name", GetType(String)), New DataColumn("StartYear", GetType(Integer)), New DataColumn("EndYear", GetType(Integer))})
    dt.Rows.Add(1, "David", 2010, 2015)
    dt.Rows.Add(2, "Jhon", 2015, 2018)
    dt.Rows.Add(3, "Kevin", 2011, 2014)
    Me.gvDetails.DataSource = dt
    Me.gvDetails.DataBind()
End Sub

Screenshot

Hi kinoh28,

I have changed the HTML that will full-fill your requirement.

HTML

<asp:GridView ID="gvDetails" runat="server" AutoGenerateColumns="false">
    <Columns>
        <asp:BoundField DataField="Id" HeaderText="ID" ItemStyle-VerticalAlign="Top" />
        <asp:BoundField DataField="Name" HeaderText="Name" ItemStyle-VerticalAlign="Top" />
        <asp:TemplateField HeaderText="Year">
            <ItemTemplate>
                <table border="1" cellpadding="0" cellspacing="0">
                    <tr>
                        <td>
                            <asp:Label ID="txtStartYear" Text='<%#Eval("StartYear")%>' runat="server" />
                        </td>
                    </tr>
                    <tr>
                        <td>
                            <asp:Label ID="txtEndYear" Text='<%#Eval("EndYear")%>' runat="server" />
                        </td>
                    </tr>
                </table>
            </ItemTemplate>
        </asp:TemplateField>
    </Columns>
</asp:GridView>

Screenshot

Hope this will help you out.