Change ASP.Net Gridview row color based on condition using C# and VB.Net

Use below code.

HTML

<asp:GridView ID="GVSectotal" runat="server" AutoGenerateColumns="true" Height="3px" Width="417px" OnRowDataBound="OnRowDataBound">
    <RowStyle BackColor="#EFF3FB" />
    <FooterStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" />
    <PagerStyle BackColor="#2461BF" ForeColor="White" HorizontalAlign="Center" />
    <HeaderStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" />
    <AlternatingRowStyle BackColor="White" />
</asp:GridView>

Code

C#

protected void OnRowDataBound(object sender, GridViewRowEventArgs e)
{
    if (e.Row.RowType == DataControlRowType.DataRow)
    {
        e.Row.BackColor = Color.White;
        int actual_qty= int.Parse(e.Row.Cells[1].Text);
        int target_qty= int.Parse(e.Row.Cells[2].Text);
        if (actual_qty < target_qty)
        {
            e.Row.BackColor = Color.Red;
        }
    }
}

VB.Net

Protected Sub OnRowDataBound(ByVal sender As Object, ByVal e As GridViewRowEventArgs)
    If e.Row.RowType = DataControlRowType.DataRow Then
        e.Row.BackColor = Color.White
        Dim actual_qty As Integer = Integer.Parse(e.Row.Cells(1).Text)
        Dim target_qty As Integer = Integer.Parse(e.Row.Cells(2).Text)
        If actual_qty < target_qty Then
            e.Row.BackColor = Color.Red
        End If
    End If
End Sub