Display number in 2 Decimal places in ASP.Net GridView RowDataBound event using C# and VB.Net

Hi asolmdu,

I have Created a sample please take its reference and correct your code.

Database

For this example I have used of Northwind database that you can download using the link given below.

Download Northwind Database

HTML

<asp:GridView runat="server" ID="gvOrders" AutoGenerateColumns="false" OnRowDataBound="RowDataBound">
    <Columns>
        <asp:TemplateField HeaderText="Order ID">
            <ItemTemplate>
                <asp:Label ID="lblID" Text='<%# Eval("OrderID") %>' runat="server" />
            </ItemTemplate>
        </asp:TemplateField>
        <asp:TemplateField HeaderText="Price">
            <ItemTemplate>
                <asp:Label ID="lblPrice" Text='<%# Eval("Freight") %>' runat="server" />
            </ItemTemplate>
        </asp:TemplateField>
    </Columns>
</asp:GridView>

NameSpaces

C#

using System.Configuration;
using System.Data;
using System.Data.SqlClient;
using System.Web.UI;

VB.Net

Imports System.Configuration
Imports System.Data
Imports System.Data.SqlClient
Imports System.Web.UI

Code

C#

protected void Page_Load(object sender, EventArgs e)
{
    if (!this.IsPostBack)
    {
        using (SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["constr"].ConnectionString))
        {
            using (SqlCommand cmd = new SqlCommand("SELECT TOP 5 OrderID,Freight FROM Orders", con))
            {
                cmd.CommandType = CommandType.Text;
                using (SqlDataAdapter sda = new SqlDataAdapter())
                {
                    sda.SelectCommand = cmd;
                    DataTable dt = new DataTable();
                    sda.Fill(dt);
                    this.gvOrders.DataSource = dt;
                    this.gvOrders.DataBind();
                }
            }
        }
    }
}

protected void RowDataBound(object sender, GridViewRowEventArgs e)
{
    if (e.Row.RowType == DataControlRowType.DataRow)
    {
        (e.Row.FindControl("lblPrice") as Label).Text = string.Format("{0:N2}", Convert.ToDecimal(DataBinder.Eval(e.Row.DataItem, "Freight").ToString()));
    }
}

VB.Net

Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs) Handles Me.Load
    If Not Me.IsPostBack Then
        Using con As SqlConnection = New SqlConnection(ConfigurationManager.ConnectionStrings("constr").ConnectionString)
            Using cmd As SqlCommand = New SqlCommand("SELECT TOP 5 OrderID,Freight FROM Orders", con)
                cmd.CommandType = CommandType.Text
                Using sda As SqlDataAdapter = New SqlDataAdapter()
                    sda.SelectCommand = cmd
                    Dim dt As DataTable = New DataTable()
                    sda.Fill(dt)
                    Me.gvOrders.DataSource = dt
                    Me.gvOrders.DataBind()
                End Using
            End Using
        End Using
    End If
End Sub

Protected Sub RowDataBound(ByVal sender As Object, ByVal e As GridViewRowEventArgs)
    If e.Row.RowType = DataControlRowType.DataRow Then
        TryCast(e.Row.FindControl("lblPrice"), Label).Text = String.Format("{0:N2}", Convert.ToDecimal(DataBinder.Eval(e.Row.DataItem, "Freight").ToString()))
    End If
End Sub

Screenshot