Keep (retain) ASP.Net GridView selected row color while paging using C# and VB.Net

Hi gabylopez,

Check this example. Now please take its reference and correct your code.

HTML

<asp:HiddenField ID="hididTitulo" runat="server" />
<asp:GridView ID="gvListaTit" runat="server" AutoGenerateColumns="False" DataKeyNames="Id" GridLines="Both"
    HorizontalAlign="Center" EmptyDataText="No se han encontrado resultados." AllowPaging="True" OnRowDataBound="gvListaTit_RowDataBound"
    OnPageIndexChanging="gvListaTit_PageIndexChanging" PageSize="3" CssClass="table table-bordered">
    <Columns>
        <asp:BoundField DataField="Id" HeaderText="Id" />
        <asp:BoundField DataField="Name" HeaderText="Name" />
        <asp:BoundField DataField="Country" HeaderText="Country" />
        <asp:TemplateField HeaderStyle-Width="65px">
            <ItemTemplate>
                <asp:ImageButton ID="btnSeleccionar" runat="server" CssClass="btn btn-simple btn-accion" ImageUrl="~/Imagenes/Iconos/check_24.png" OnClick="Edit" />
            </ItemTemplate>
        </asp:TemplateField>
    </Columns>
</asp:GridView>

Code

C#

protected void Page_Load(object sender, EventArgs e)
{
    if (!this.IsPostBack)
    {
        BindGridView();
    }
}

private void BindGridView()
{
    DataTable dt = new DataTable();
    dt.Columns.AddRange(new DataColumn[3] {
        new DataColumn("Id"),
        new DataColumn("Name"),
        new DataColumn("Country") });
    dt.Rows.Add(1, "John Hammond", "United States");
    dt.Rows.Add(2, "Mudassar Khan", "India");
    dt.Rows.Add(3, "Suzanne Mathews", "France");
    dt.Rows.Add(4, "Robert Schidner", "Russia");
    gvListaTit.DataSource = dt;
    gvListaTit.DataBind();
}

protected void Edit(object sender, EventArgs e)
{
    foreach (GridViewRow row1 in gvListaTit.Rows)
    {
        row1.BackColor = System.Drawing.Color.White;
    }

    ImageButton btn = sender as ImageButton;
    GridViewRow row = btn.NamingContainer as GridViewRow;
    hididTitulo.Value = row.Cells[0].Text;
    row.BackColor = System.Drawing.ColorTranslator.FromHtml("#83CFC6");
}

protected void gvListaTit_PageIndexChanging(object sender, GridViewPageEventArgs e)
{
    gvListaTit.PageIndex = e.NewPageIndex;
    BindGridView();
}

protected void gvListaTit_RowDataBound(object sender, GridViewRowEventArgs e)
{
    if (e.Row.RowType == DataControlRowType.DataRow)
    {
        e.Row.BackColor = System.Drawing.Color.White;

        if (e.Row.Cells[0].Text == hididTitulo.Value)
        {
            e.Row.BackColor = System.Drawing.ColorTranslator.FromHtml("#83CFC6");
        }
    }
}

VB.Net

Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs) Handles Me.Load
    If Not Me.IsPostBack Then
        BindGridView()
    End If
End Sub

Private Sub BindGridView()
    Dim dt As DataTable = New DataTable()
    dt.Columns.AddRange(New DataColumn(2) {
                        New DataColumn("Id"),
                        New DataColumn("Name"),
                        New DataColumn("Country")})
    dt.Rows.Add(1, "John Hammond", "United States")
    dt.Rows.Add(2, "Mudassar Khan", "India")
    dt.Rows.Add(3, "Suzanne Mathews", "France")
    dt.Rows.Add(4, "Robert Schidner", "Russia")
    gvListaTit.DataSource = dt
    gvListaTit.DataBind()
End Sub

Protected Sub Edit(ByVal sender As Object, ByVal e As EventArgs)
    For Each row1 As GridViewRow In gvListaTit.Rows
        row1.BackColor = System.Drawing.Color.White
    Next

    Dim btn As ImageButton = TryCast(sender, ImageButton)
    Dim row As GridViewRow = TryCast(btn.NamingContainer, GridViewRow)
    hididTitulo.Value = row.Cells(0).Text
    row.BackColor = System.Drawing.ColorTranslator.FromHtml("#83CFC6")
End Sub

Protected Sub gvListaTit_PageIndexChanging(ByVal sender As Object, ByVal e As GridViewPageEventArgs)
    gvListaTit.PageIndex = e.NewPageIndex
    BindGridView()
End Sub

Protected Sub gvListaTit_RowDataBound(ByVal sender As Object, ByVal e As GridViewRowEventArgs)
    If e.Row.RowType = DataControlRowType.DataRow Then
        e.Row.BackColor = System.Drawing.Color.White

        If e.Row.Cells(0).Text = hididTitulo.Value Then
            e.Row.BackColor = System.Drawing.ColorTranslator.FromHtml("#83CFC6")
        End If
    End If
End Sub

Screenshot